34 results about "Strategy research" patented technology

The invention provides a natural language-based intelligent programming method and device and a storage medium. The method includes the steps of predefining a programming language, extracting a standard programming language for objects, financial indicators and functions, and converting the standard programming language into a common language; defining a trading strategy, and performing screening,backtesting, and / or trading according to the trading strategy; or pre-defining standard languages, establishing a mapping relationship between the standard languages and natural languages to form a mapping library; defining screening conditions, and generating a corresponding trading target and / or a backtesting result of the trading target according to the screening conditions. By pre-establishing the standard language and natural language mapping library, a quantitative strategy written by a user in the common language is identified by the mapping library and runs and the corresponding trading target is generated, backtesting or trading can be performed at the same time, the requirements for computer specialty and English level of ordinary investors are lowered, the strategy writing becomes simple, and investors can spend more time on strategic research rather than programming.

The invention provides an LDDoS simulation method based on light-weight virtualization. The LDDoS simulation method based on light-weight virtualization relates to the field of the network simulationand the network security. The target network topology automatic deployment and the protocol configuration can be quickly and flexibly performed by using the method, and the method can be used for attack-defense strategy research and effect evaluation of the large-scale LDDoS. The method comprises the following steps: manufacturing a light-weight virtualization routing mirror image; manufacturing an LDDoS attack mirror image; constructing a network topology based on the light-weight virtualization; setting attack parameters and performing coordinated attack; collecting and evaluating link datain real time; and visually displaying the attack effect data. Through the simulation provided by the invention, the large-scale and high-vivid simulation environment can be provided by using less resource; the method can be used for the LDDoS attack-defense strategy research, and can be further used for the evaluation of other network security events.

The invention discloses a CO2 injecting and oil deposit displacing CO2 mixed-phase area judging method. The method comprises the steps that fine oil deposit description is conducted on a target oil deposit, and a fine oil deposit geologic model is established; numerical simulation research of the target oil deposit is carried out, and an oil layer pressure distribution characteristic plate and an oil layer CO2 saturability distribution characteristic plate are obtained; through a long thin tube displacement test, the minimum mixed-phase pressure of CO2 and crude oil of the target oil deposit is determined through measurement; and a CO2 injecting and oil deposit displacing CO2 mixed-phase area is judged. The method is clear in step and easy and convenient to apply, and a set of scientific, reasonable and reliable judgment and evaluation criteria is provided for developing research of a low-permeability (compact) oil deposit CO2 injecting and oil displacing mechanism and the CO2 injecting displacement recovery efficiency improvement technique. Whether an oil deposit belongs to mixed-phase displacement or not can be judged, and whether an area to be evaluated in the oil deposit is of the mixed-phase area type or not can also be judged. Meanwhile, the method can guide low-permeability (compact) oil deposit CO2 injecting displacement to carry out corresponding development strategy research. The method has broad application and popularization prospects and remarkable economic and social benefits.

The invention discloses a test stand for a video-ranging offshore platform crane heave compensation control system. The test stand comprises a hydraulic oil source, a hydraulic control valve, a control handle, a hydraulic winch, a direct-pump-controlled electrical-hydraulic heave compensation device, a control computer, an industrial camera, a rack, an analog load, a six-degree-of-freedom platform, a power distribution control cabinet and a tension sensor. By using the test stand, the video-ranging offshore platform crane heave compensation control system can be conveniently tested, the operation process of a conventional offshore platform crane can be simulated and tested, the control performance of a machine-vision offshore platform crane heave compensation motion control system can be judged through detecting the tension of a steel wire rope, and the control strategy research of the machine-vision offshore platform crane heave compensation motion control system can be carried out through comparing with the conventional offshore platform crane; and the test stand is compact in structure, convenient to use and wide in practicability.

The invention discloses a well pattern model designing method for horizontal well fractures. The method comprises the steps that on the basis of actual geological parameters, a conceptual model of a target oil reservoir is established with Eclipse reservoir numerical simulation software; an injection fractured horizontal well and a production fractured horizontal well are deployed, and the fractures have identical intervals and lengths and are staggered; an interval between adjacent fractures of the fractured horizontal wells is taken as a research range; a balance area is arranged according to physical properties of reservoir rock, distribution characteristics of fluid physical properties and percolation characteristics of an injection and production well control area; balance interval threshold breakthrough pressure is set for the balance area, so that start-up pressure of the oil reservoir can be simulated approximately, and the well pattern model for the horizontal well fractures can be established. The method is clear in mechanism, high in operability, effective and practical, broad in popularization and application prospect and substantial in economic and social benefit, and a scientific and reasonable numerical simulation model is provided for development strategy research of fractured horizontal wells for dense reservoirs.

The invention relates to a method for establishing an energy-storage type double-fed wind power plant simplified model. A double-fed wind turbine generator and a storage battery energy-storage system are equivalent into an equivalent circuit formed by connecting an ideal controlled current source and an electric reactor in parallel, a double-fed wind turbine generator model and a storage battery energy-storage system model are respectively established according to the vector orientation control technology principle and are connected to form the energy-storage type double-fed wind power plant simplified model, and the model is solved according to the phasor method. The establishing and solving method for the energy-storage type double-fed wind power plant simplified model are suitable for simulating all wind turbine generators and energy-storage systems in the wind power plant for a long time, and the method can be applied to the fields of wind power plant equivalent establishing, wind power plant and energy-storage type wind power plant power coordination control strategy researches and the like and has high application value.

The invention discloses an electric microgrid system simulation model for a power plant factory. The microgrid comprises a battery energy storage device, a plurality of generators and auxiliary equipment driven by the plurality of generators; each generator comprises a wind driven generator, a photovoltaic generator and a diesel generator; the microgrid is connected with a large power grid througha public connection node; the simulation design method comprises the steps that an active stall type control is adopted for the fan of the wind driven generator; the photovoltaic generator is controlled by adopting an improved variable-step-length disturbance method; and a droop control strategy is adopted for controlling the diesel generator. The method can be used for the optimal control strategy research of an electric microgrid in a factory, and the on-site test work is reduced and specifically, the solar energy utilization efficiency can be accurately and effectively improved through simulation calculation.

The invention relates to a modeling method of an internal combustion engine-lithium bromide combined cooling heating and power system. The modeling method comprises: determining model input and outputvariables, determining a system model structure, determining a model parameter identification variable,; and substituting the system operation data into the improved particle swarm intelligence algorithm by adopting a method of combining a mechanism and data-driven modeling to identify unknown parameters of the system model so as to obtain a final model. Compared with the prior art, the technicalproblems that the internal combustion engine-lithium bromide combined cooling heating and power system is difficult to model, optimize and control are effectively solved, and a premise is provided for operation optimization and control strategy research of the combined cooling heating and power system.

The invention discloses a dynamic simulation system of an offshore wind power power-transmission and grid-connected system through a VSC-MTDC. A main circuit frame of a grid-connected system is given, a design scheme of a monitoring system is improved, a monitoring system framework based on a central monitoring system and convertor station monitoring system double-layer structure is provided, an interface scheme of a fan simulation device monitoring system and a convertor station monitoring system is given, and a coordination control method between VSC-MTDC power transmission system network side converter stations is designed. The dynamic simulation system is advantageous in that a reliable and convenient research platform is provided for a system scheme of the offshore wind power power-transmission and grid-connected system through the VSC-MTDC, control system design, control strategy research and dynamic response characteristic analyses, and a good test environment is provided for system engineering development and debugging.