31results about How to "The evaluation results are scientific and reasonable" patented technology

The invention discloses a relative influence analysis model applied to evaluation of distribution network construction and renovation schemes and power supply quality indexes, and the model is used for carrying out comprehensive quantitative evaluation on the distribution network construction and renovation schemes from the perspective of power supply quality so as to fill the gap of the researches of relative fields at the present stage. The method comprises the following steps: determining a subjective weight by utilizing an AHP method; determining an objective weight by utilizing an entropy evaluation method; determining a comprehensive weight of the power supply quality indexes by utilizing a multiplicative combination method; and calculating the power supply quality comprehensive indexes of the distribution networks corresponding to the construction and renovation schemes by utilizing a multilevel gray relative analysis method. According to the relative influence analysis model, comprehensive quantitative evaluation can be carried out on the distribution network construction and renovation schemes from the aspects of power supply reliability and electric power quality, the subjective determination and objective determination of the weights are combined, and the relevancy is calculated level by level by utilizing the multilevel gray relative analysis method, so that the evaluation process is scientific and reasonable and has favorable universality, and reference and basis are provided for the making of the distribution network construction and renovation schemes.

The present invention discloses a network security comprehensive evaluation system which includes a database, a model base and a function base, wherein, the database contains an indicator database, an indicator specimen base and a user privilege base; the model base includes a gray evaluation module, a vague evaluation module, a nerve network evaluation module and a combination evaluation module; the function base includes a data processing module, a model managing module and a result output module. The present invention integrates the judgment and knowledge, the test data and information, the mathematic module and method and the relevant computer technologies, and provides a scientific and practical security evaluating instrument for the network security evaluation.

The invention discloses a tailing pond dam break risk evaluating method comprising the following steps: building an evaluating factor set F=(f1, f2, f3,..fn), wherein fi refers to i factor; building a comment rate set U corresponding to each evaluating factor in the evaluating factor set F, determining the weight of each evaluating factor S=(S2, S2, S3,..Sn), wherein Si refers to the weight of fi; obtaining comment rates of each evaluating factor from the comment rate set U, and obtaining a fuzzy determination matrix Ri; obtaining tailing pond risk each factor evaluating matrix Zi=SiRi, building a tailing pond risk evaluation matrix (see formula) according to the tailing pond risk each factor evaluating matrix Zi; carrying out secondary fuzzy integration evaluation C=SZ, and obtaining ck=max(cj) according to the maximum membership principle, so an evaluated object belongs to k rate.

The invention discloses a railway construction scheme evaluation method based on a hybrid multi-attribute decision, and the method comprises the following steps: S1, carrying out the standardization processing of the values of a qualitative index and a quantitative index in a plurality of alternative schemes, and obtaining a standardized evaluation matrix; S2, calculating the weight of each indexby adopting a combination weighting method; S3, weighting the standardized evaluation matrix by using the weight obtained in the step S2 to obtain a weighting matrix; S4, determining a positive idealscheme and a negative ideal scheme; S5, calculating the distance between each alternative scheme and the positive ideal scheme and the negative ideal scheme; And S6, calculating the comprehensive relative closeness of each alternative scheme, and determining the optimal scheme in each alternative scheme according to the comprehensive relative closeness. The evaluation method overcomes the defectsof a traditional scheme evaluation method such as an analytic hierarchy process and a fuzzy comprehensive evaluation method, achieves comprehensive evaluation and comparison of quantitative indexes and qualitative indexes, enables the evaluation result to be more scientific and reasonable, and has a higher reference value.

A power generation enterprise competitiveness evaluation method based on combined weighting and improved TOPSIS, comprising the following steps: a. constructing a power generation enterprise competitiveness evaluation system; b. performing dimensionless standardization on evaluation indicators; c. passing subjective weights and objective weights to determine the index weights; d. Calculate the weighting matrix and translate the coordinate origin to the ideal solution point; e. Determine the negative ideal solution after translation And calculate the vertical distance between each evaluation scheme and the ideal solution ; f. According to the obtained vertical distance right Items to be evaluated are sorted, The smaller the value, the stronger the competitiveness of the corresponding power generation enterprises. The present invention applies the improved TOPSIS model based on combined weighting to the competitiveness evaluation of power generation enterprises, effectively reducing the deviation caused by over-reliance on subjective or objective weights in the decision-making process, and making the evaluation results closer to the reality. The evaluation method is simple, scientific and reasonable, and can accurately evaluate the competitiveness of power generation enterprises.

The invention provides a method for evaluating operational risk of wind power farms in combination with weather and wind speed, comprising the following steps of: a, determining outage probability of equipment components under the current weather within an evaluation cycle; b, constructing a time sequence through an ARMA model and performing matrix transformation, thereby obtaining a wind speed sequence of each wind power farm; c, obtaining a system state according to the outage probability of the current weather, and performing sampling through a non-sequential Monte Carlo method; d, adding 1 to number of sampling, obtaining wind speed of each wind power farm at the current time, and calculating output of each wind power farm; e, according to output of each wind power farm, screening out a load bus meeting a preset condition, and corresponding load shedding value of the load bus, accumulating the load shedding value, and taking the accumulated value as minimum loss load quantity of the system; f, according to the minimum loss load quantity, calculating a risk indicator; g, when risk indicator variance is less than precision each time, returning back to the step d; and otherwise, outputting the risk indicator. By implementation of the method and the system provided by the invention, accuracy and reliability of evaluation of operational risk of the wind power farms can be improved, and evaluation result can be more scientific and rational, and has extensibility.

The present invention provides a power system energy storage suitability evaluation method and system. The method includes the following steps that: an index evaluation system is constructed; the application scene of an energy storage device is determined; the basic evaluation data of the energy storage device are acquired; each evaluation criterion is evaluated independently; and all the evaluation criteria are evaluated comprehensively. According to the power system energy storage suitability evaluation method and system of the present invention, the two-level index evaluation system is built to evaluate the applicability of the energy storage device to various application scenes; and an evaluation criterion qualitative and index factor quantitative combined mode is adopted, and therefore, subjectivity and objectiveness can be both considered, and the applicability of the energy storage device in a power system can be comprehensively and authentically evaluated.

The invention discloses a method for evaluating functions of a land patrol vehicle, which comprises the following steps of: establishing evaluation criteria comprising patrol navigation positioning, on-site inspection for obtaining evidence, information management and data communication, setting an evaluation criteria weight of a land patrol vehicle system by using a hierarchy analysis method, and then determining a score value of the evaluation criteria by using a Delphi method so as to obtain a quantization value of evaluating the functions of the land patrol vehicle. The invention realizes functional quantization and evaluation of the land patrol vehicle, and provides the method combining the hierarchy analysis method and the Delphi method to digitalize a functional evaluation result so that deviation caused by man-made subjective assume can be reduced and the evaluation result is more scientific and reasonable, closer to the reality and more objective and intuitive. The land patrol vehicle has reasonable design and convenient operation, and can be provided for detecting the grade which can be reached by the land patrol vehicle system.

The present invention provides a method for comprehensive evaluation of the construction quality of power receiving projects for power customers of 10 kv or below, comprising the following steps: S1, constructing an evaluation index system, the evaluation index system includes a first-level indicators and b second-level indicators, wherein , a and b are both natural numbers, S2, respectively construct a judgment matrix for pairwise comparison between the first-level indicators and the second-level indicators, S3, calculate the weight of each first-level indicator and second-level indicator, S4, establish a comprehensive fuzzy evaluation model, The specific method is for the object to be evaluated, rating the secondary indicators described in step S1 by several experts, S5, calculating the membership matrix R according to the statistical results of step S4, S6, according to the weight of the membership matrix R and the secondary indicators , respectively calculate the evaluation vector of each first-level index, S7, calculate the fuzzy comprehensive vector B according to the weight of the first-level index and the evaluation vector of each first-level index, S8, quantify the score. Using fuzzy comprehensive evaluation method based on AHP, the evaluation result is more scientific and reasonable.

The invention discloses a method for evaluating damage to the fishery from marine oil spill through employing structural equation fuzzy integrated assessment, and belongs to the field of environment protection. The method comprises the steps: firstly extracting factors which determines the degree of damage to the fishery resources from the marine oil spill pollution, analyzing the relation between the fishery resource damage degree and the factors, and building an index system for evaluation of the damage to the fishery resources from the marine oil spill pollution; secondly constructing a structural equation model, determining key factors determining the damage degree, the weight of the damage degree and key factors and the weight of each key factor and the corresponding index; finally carrying out the fuzzy integrated evaluation and analysis of the degree of damage to the fishery resources from the marine oil spill pollution through combining with the weights. According to the invention, the structural equation model is introduced in the fuzzy integrated evaluation, thereby solving an indeterminacy problem of the damage degree of the fishery resources, and the accurate mutual relation among the factors enables the evaluation result to be scientific and reasonable and to accord with the reality.

The invention discloses a coastal wetland ecological vulnerability potential risk assessment method based on a gray weighted correlation degree, and the method comprises the following steps: (1) constructing a three-level evaluation index system, and dividing a forward evaluation index and a reverse evaluation index; (2) establishing an evaluation matrix, and calculating an objective weight by using an entropy weight method; (3) calculating a correlation coefficient through a grey correlation analysis method; and (4) calculating a gray weighted correlation degree in combination with the objective weight and the correlation coefficient, and performing sorting to obtain a sample with the highest ecological vulnerability. According to the method, the influence of natural and human activity factors on the coastal wetland ecological vulnerability potential risk is comprehensively considered; a set of systematic three-level evaluation index system is constructed, objective evaluation of coastal wetland ecological vulnerability potential risks can be achieved in combination with the grey weighted correlation degree, methods and reference are provided for coastal wetland protection, management and scientific research, and a scientific basis is provided for improving the coastal wetland ecological environment.

The invention provides a comprehensive assessment method of a power distribution network operation mode. The method comprises the following steps: selecting a main index and a plurality of sub indexes from a plurality of preset assessment indicator systems, and building an assessment model comprising an objective function and constraint conditions; performing transformation on the assessment model based on the lagrange function, and calculating lagrange multipliers corresponding to the various sub indexes; and building a result assessment function based on the assessment model after the transformation, introducing the lagrange multipliers corresponding to the various sub indexes as weighted values corresponding to the various sub indexes to the result assessment function, obtaining a plurality of result assessment values, and determining an operation mode, which corresponds to the minimum in the result assessment values, for being the best. The embodiment of the invention is implemented, indexes related to operation of a power distribution network are fully considered, the comprehensive assessment function is built by utilizing the lagrange function in nonlinear programming, subjective factors incorporated in the assessment process are reduced to the maximum extend, an assessment result is more reasonable, and expandability is possessed.

The invention relates to a water resource energy efficiency extension ecological evaluation method based on an improved distance. The method comprises the following steps: water resource energy efficiency data of an object to be evaluated is obtained in various investigation ways, a comprehensive evaluation index system represented by multidimensional matter elements is established, an ideal region, a feasible region and an optimal value are obtained through the set of an expected value, correlation function calculation of each evaluation index is realized so as to carry out initial evaluation, each index of the evaluation object meeting the requirement is normalized, four different weight coefficient assignment methods are compared to give the superiority of a weight coefficient method based on the improved distance, and the extension evaluation result and the difference are analyzed. The invention provides the evaluation method with balanced weight coefficient assignment, a simple and clear evaluation way and an objective and fair evaluation result.

The invention relates to the field of railway engineering construction, in particular to a railway line trend evaluation determination method. The invention provides a railway line trend evaluation determination method, and provides a railway line trend scheme comprehensive evaluation index system and a scheme evaluation determination method which comprehensively consider that railway constructionis in different stages and comprises four first-level indexes, eight second-level indexes and 42 third-level indexes. The problems that in the prior art, index selection is not comprehensive enough,or part of indexes are not practical and poor in operability, the development requirement of railway lines cannot be met, and the development objectives of technology, economy, environment, society and the like of railway construction at different stages cannot be reflected are effectively solved.

The invention discloses a multi-index coupled surface type water source safety risk assessment method, and belongs to the technical field of drinking water source protection risk assessment. The method comprises the following steps of: (1) comprehensively evaluating the water quality of a surface type water source by adopting an artificial neural network model; (2) evaluating the health risk of the surface type water source by adopting a health risk evaluation method recommended by USEPA (United States Environmental Protection Agency); (3) according to the pollution occurrence frequency and existence time, carrying out water pollution risk evaluation on the surface type water source; and (4) calculating the weights of the indexes in water safety risk evaluation by adopting an analytic hierarchy process, and performing water safety risk evaluation on the surface type water source. Scientific and comprehensive water safety evaluation is carried out for the surface type water source, related departments are guided to carry out effective water source protection measures, drinking water safety of people is guaranteed, and economic and social development is promoted.

The invention discloses a Delphi-FCE-based general vehicle equipment maintenance support capability evaluation method. The method comprises the following steps: S1, establishing a Delphi-based general vehicle equipment maintenance support capability evaluation index system; S2, establishing a comprehensive evaluation model of the general vehicle equipment support capability; and S3, evaluating the general vehicle equipment maintenance support capability through the comprehensive evaluation model. According to the invention, the comprehensive evaluation model of the general vehicle equipment support capability is established, and a more scientific and reasonable evaluation result is obtained; besides, the correctness of the method is verified by evaluating the maintenance support capability of the general vehicle equipment of a certain unit, and the result shows that the evaluation index established by the method is objective, effective, scientific and reasonable, and the obtained evaluation result is more accurate. The method is of guiding significance to equipment efficiency evaluation and vehicle equipment maintenance support capability strengthening construction.

The invention discloses a visual analysis system based on a subject evaluation report, and particularly relates to the technical field of subject evaluation, the visual analysis system comprises a data acquisition unit, the output end of the data acquisition unit is electrically connected with the input end of a data preprocessing unit, and the output end of the data preprocessing unit is electrically connected with the input end of a central processing unit. According to the invention, the evaluation module, the visualization unit and the evaluation result analysis unit are adopted to analyze the evaluation results, the evaluation results of the subject in each index are specifically subdivided from the evaluation results, and the evaluation results of the indexes of the subject and the historical data of the overall evaluation result are combined to generate a corresponding chart. According to the method, the overall evaluation result change of the subject is reflected, meanwhile, the development change condition of the subject in the project corresponding to each index is accurately judged, specific planning and development targets can be specifically made for the overall development of the subject, and the overall subject evaluation and subsequent development process is clearer and clearer.

The present invention discloses a residential building energy-saving effect evaluation simple method and belongs to the energy-saving building evaluation field. The residential building energy-saving effect evaluation simple method includes the following steps that: S1, indoor temperature is adopted as a constant, S2, cooling and heating loads in a house are calculated; S3, data about fresh air volume, cold and hot water quantity and electric load under the temperature and humidity conditions of indoor design are calculated; S4, an equivalent window opening rate is calculated through a building envelope structure; S5, energy consumption calculation is performed for the performance parameters of the envelope structure according to a first-order equation; and S6, display is performed in a list form and a data model form based on the above calculation results. The method of the invention has the advantages of rigorous principles, high feasibility, high practicability and convenient calculation. According to the method, evaluation indexes and standards can be adjusted flexibly; the realization of computerization can be facilitated; the matter-element models of the evaluation indexes can be built so as to describe the characteristics of visible objects; and quantitative numerical values are adopted to expresses evaluation results, and therefore, the energy saving level of a building can be reflected intuitively.

The invention provides a transformer risk analysis method. The method comprises the steps of: using practical defects of a transformer as risk sources, obtaining association indexes, and further giving an initial probability value to each determined risk index corresponding to the association indexes; constructing similar matrices formed by the association indexes respectively for each risk source, giving values to the similar matrices, and screening out the similar matrix, meeting preset conditions, in each risk source and a corresponding weight vector; according to the initial probability values of the association indexes and the weight vector screened out by each risk source, obtaining weighted probability values of each risk source to the risk indexes; obtaining severe degrees of each h risk source to the risk indexes, and screening out a maximum value of the same risk index, and according to the weighted probability values and the severe degree maximum value, calculating an index of each risk index; accumulating the indexes so as to obtain a total risk index, and outputting the total risk index. By adopting the method, the accuracy and the reliability of transformer risk assessment and defect diagnosis are improved, the assessment result is enabled to be more scientific and reasonable, and the expandability is realized.

The invention relates to a water resource energy efficiency extension ecological evaluation method based on an improved distance. The method comprises the following steps: water resource energy efficiency data of an object to be evaluated is obtained in various investigation ways, a comprehensive evaluation index system represented by multidimensional matter elements is established, an ideal region, a feasible region and an optimal value are obtained through the set of an expected value, correlation function calculation of each evaluation index is realized so as to carry out initial evaluation, each index of the evaluation object meeting the requirement is normalized, four different weight coefficient assignment methods are compared to give the superiority of a weight coefficient method based on the improved distance, and the extension evaluation result and the difference are analyzed. The invention provides the evaluation method with balanced weight coefficient assignment, a simple and clear evaluation way and an objective and fair evaluation result.

The invention provides a strip mine safety risk evaluation method based on ANP-grey fixed weight clustering, and the method comprises the following steps: 1, organizing an expert group, and determining an element set of strip mine safety risks; step 2, carrying out two-by-two importance evaluation on the risk element set by an expert and constructing an ANP network structure; 3, constructing an unweighted hypermatrix, calculating a weighted hypermatrix on the basis of the unweighted hypermatrix, further calculating a limit hypermatrix, and obtaining the weight of each risk factor; 4, determining a gray comment set according to the characteristics of the safety risk of the strip mine; 5, determining a gray sample matrix and a gray possibility degree function; step 6, calculating a grey evaluation coefficient and a grey evaluation matrix based on a grey possibility degree function; and step 7, assigning a risk grey class evaluation weight according to a grey level based on the grey evaluation matrix, and calculating a comprehensive evaluation result by combining the weight of ANP. And decision makers of mine enterprises are helped to carry out key management and control on key risk factors in time.

The invention discloses a regional water bearing capacity calculation method based on an extension conduction effect. The calculation method comprises the following steps of: 1) considering condition differences such as coupling relationship and area between different design elements, and determining design variables of a proposed water station, indicator elements of reach evaluation and the calculation method; 2) building and designing a problem model between the problems, and carrying out correlation analysis so as to obtain a nuclear problem model and a conduction contradiction ring; and 3) researching a conversion mechanism of the conduction contradiction ring, providing an active variable, and building an extension transformation operation model to calculate the conduction effect between different design elements so as to obtain a comprehensive evaluation result; and comprehensively considering an ecological index, a social index and an technical index by classification comparison of the result so as to finally obtain an optimal scheme, and applying to regional water bearing capacity calculation of 27 reaches of Zhejiang water resources to achieve regionalization. According to the invention, the relevance and conduction between the design variables of the proposed water station and the design elements of the regional water bearing capacity are fully considered; and the problem of incompatibility is effectively achieved, and the calculation process is concise and clear, objective and strong in practicability.

The invention discloses a regional water bearing capacity calculation method based on an extension conduction effect. The calculation method comprises the following steps of: 1) considering condition differences such as coupling relationship and area between different design elements, and determining design variables of a proposed water station, indicator elements of reach evaluation and the calculation method; 2) building and designing a problem model between the problems, and carrying out correlation analysis so as to obtain a nuclear problem model and a conduction contradiction ring; and 3) researching a conversion mechanism of the conduction contradiction ring, providing an active variable, and building an extension transformation operation model to calculate the conduction effect between different design elements so as to obtain a comprehensive evaluation result; and comprehensively considering an ecological index, a social index and an technical index by classification comparison of the result so as to finally obtain an optimal scheme, and applying to regional water bearing capacity calculation of 27 reaches of Zhejiang water resources to achieve regionalization. According to the invention, the relevance and conduction between the design variables of the proposed water station and the design elements of the regional water bearing capacity are fully considered; and the problem of incompatibility is effectively achieved, and the calculation process is concise and clear, objective and strong in practicability.

The invention provides a method for evaluating operational risk of wind power farms in combination with weather and wind speed, comprising the following steps of: a, determining outage probability of equipment components under the current weather within an evaluation cycle; b, constructing a time sequence through an ARMA model and performing matrix transformation, thereby obtaining a wind speed sequence of each wind power farm; c, obtaining a system state according to the outage probability of the current weather, and performing sampling through a non-sequential Monte Carlo method; d, adding 1 to number of sampling, obtaining wind speed of each wind power farm at the current time, and calculating output of each wind power farm; e, according to output of each wind power farm, screening out a load bus meeting a preset condition, and corresponding load shedding value of the load bus, accumulating the load shedding value, and taking the accumulated value as minimum loss load quantity of the system; f, according to the minimum loss load quantity, calculating a risk indicator; g, when risk indicator variance is less than precision each time, returning back to the step d; and otherwise, outputting the risk indicator. By implementation of the method and the system provided by the invention, accuracy and reliability of evaluation of operational risk of the wind power farms can be improved, and evaluation result can be more scientific and rational, and has extensibility.

The invention discloses a method for evaluating damage to the fishery from marine oil spill through employing structural equation fuzzy integrated assessment, and belongs to the field of environment protection. The method comprises the steps: firstly extracting factors which determines the degree of damage to the fishery resources from the marine oil spill pollution, analyzing the relation between the fishery resource damage degree and the factors, and building an index system for evaluation of the damage to the fishery resources from the marine oil spill pollution; secondly constructing a structural equation model, determining key factors determining the damage degree, the weight of the damage degree and key factors and the weight of each key factor and the corresponding index; finally carrying out the fuzzy integrated evaluation and analysis of the degree of damage to the fishery resources from the marine oil spill pollution through combining with the weights. According to the invention, the structural equation model is introduced in the fuzzy integrated evaluation, thereby solving an indeterminacy problem of the damage degree of the fishery resources, and the accurate mutual relation among the factors enables the evaluation result to be scientific and reasonable and to accord with the reality.

This invention discloses one safety evaluation technique by use of recycle water as contact amusement water. The technique uses different concentration times water sample to process test on large ear rabbit skin and eyes through observing tested part reaction evaluation to generate water contact safety.

The invention discloses a dynamic stability monitoring and early warning method for an underground deeply-buried curtain. The method comprises the following steps that 1) monitoring points are arranged on a curtain body and the periphery of the curtain body; 2) monitoring data is collected and extracted; 3) mesh generation is carried out on a monitoring range; 4) sensitivity division is carried out on monitoring factors; 5) a comprehensive stability threshold value of the curtain is calculated; and 6) a dynamic stability monitoring and early warning system for the curtain is built. Compared with traditional monitoring methods such as microseism and industrial CT, the novel stability monitoring method for the deeply-buried curtain is small in interference factor, data is collected in real time, and the problems of data distortion and information lag do not exist. According to the factor sensitivity sorting and the comprehensive threshold value, monitoring and early warning of the overall stability of the curtain are achieved, and the problem that monitoring and early warning of the stability of the deeply-buried curtain are lack of integrity and integrity is solved.

The invention discloses a railway public welfare comprehensive evaluation method based on fuzzy mixed decision. The method comprises the following steps: S1, establishing a railway public welfare comprehensive evaluation index system; S2, performing quantitative conversion on the qualitative indexes in the index system; S 3, respectively carrying out standardization processing on the values of thequalitative index and the quantitative index; S 4, calculating the weight of each index by adopting a G1 method; S 5, weighting each index value, and determining an ideal solution; S 6, calculating the distance between the railway to be evaluated and the ideal solution; and S7, carrying out comprehensive evaluation and grade classification on the railway public welfare. The railway public welfarecomprehensive evaluation method fills up the blank of the current railway public welfare comprehensive evaluation method, overcomes the defects of traditional railway evaluation methods such as national economy evaluation and fuzzy comprehensive evaluation methods, realizes the comprehensive evaluation of quantitative indexes and qualitative indexes, and enables the evaluation result to be more scientific and reasonable, and has higher reference value and operability.

The invention discloses an electric energy quality fuzzy comprehensive evaluation method. The fuzzy comprehensive evaluation method comprises the steps of constructing each evaluation index based on the fuzzy comprehensive evaluation method; constructing a weight vector W, wherein the weight vector W is the superposition of the adjustment weight in the excitation state and the constant weight of each evaluation index; constructing a cloud membership function according to the normal cloud model and forming a fuzzy relation matrix R; constructing a fuzzy comprehensive evaluation vector B according to the weight vector W and the fuzzy relation matrix R; processing the fuzzy comprehensive evaluation vector B according to a confidence criterion to obtain a comprehensive evaluation value. According to the invention, the influence of subjective factors in the evaluation process is avoided; the method is advantaged in that the acquired evaluation result is more scientific and reasonable, satisfactory comprehensive evaluation results are acquired, confidence degree information of the evaluation result can be further provided, reasonable and objective analysis on the electric energy qualityis carried out, construction of the electric energy quality market is facilitated, and cost reduction and benefit improvement of individual users and power enterprises are facilitated.