30results about How to "Improve the utilization rate of wind power" patented technology

The invention discloses a two-stage source-load dispatching method and device considering peak regulation and climbing requirements. The dispatching method comprises the following steps: partitioning a net load curve according to the inflection points of the net load curve; analyzing the peak regulation requirement of a power system and the climbing requirement of each time interval based on the net load curve; optimizing each partition of the net load curve by utilizing a stage excitation type requirement response optimization model; after all partitions are computed, outputting the optimized load curve; based on the optimized load curve, carrying out advance dispatching by utilizing a two-stage dispatching model; and when the optimized dispatching result meets all constraint conditions, outputting the dispatching result. The dispatching device comprises a partitioning module, an analysis module, a first optimization module, a first output module, a dispatching module and a second output module. The two-stage source-load dispatching method and device can effectively increase the wind power utilization ratio and are suitable for actual dispatching of a power system with large-scale wind power.

The invention discloses a coordinated control method for wind power consumption based on fused magnesia load, which includes: predicting the wind power output curve the day before, combined with the actual production and operation status of the fused magnesia load, during the day ahead scheduling, the fused magnesia The load is regarded as a controllable load. By regulating the high energy consumption load during the wind abandonment period, the minimum sum of the abandoned air volume in the next day is taken as the optimization goal, and the upper and lower limits of the fused magnesium load power are introduced into the constraint conditions. Adjustment duration constraints, adjustment times constraints, and wind power and thermal power operation constraints, the adjustment amount of the fused magnesium load at each time period is obtained through optimization calculations to realize the consumption of wind power. Taking full advantage of the load operation characteristics and production process of fused magnesia, a coordinated control strategy for changing the fused magnesia load curve is proposed. The reduction of wind power has a positive effect and improves the utilization rate of wind power.

The invention relates to an operation and control method of a large-scale wind turbine generator in a micro grid system. The operation and control method of the large-scale wind turbine generator in the micro grid system includes the following steps: A. real time anemometry data in a dispatching cycle are collected; B. according to the real time anemometry data collected by the step A, an actual power curve of the wind turbine generator is combined, an ultra-short period wind power predictive value Pt, avg_wind is obtained, and a wind power range in the next dispatching cycle is further confirmed; C. according to the ultra-short period wind power predictive value, a real-time load demand, other distributed power output situations and an optimal control management strategy are combined, and a wind power optimal value Pt+1, sys_wind which can be accepted by the micro grid system in the next dispatching cycle is confirmed. According to the operation and control method of the large-scale wind turbine generator in the micro grid system, meteorological data of a wind field are not needed and a passive unloading box are not needed. The operation and control method of the large-scale wind turbine generator in the micro grid system can be integrated on a micro energy control management system or a supervisor system and is good in practicability and economical performance.

The invention discloses a cooperative operation system for wind power generation, pumped storage power generation and hydraulic supply. The cooperative operation system comprises a wind power generation system, a pumped storage power generation system, a hydraulic supply system and a coordinated control processing device; power supply circuits are arranged between an electric energy output end ofthe wind power generation system and a power source input end of a pumped storage water pump and between the electric energy output end of the wind power generation system and a power source input endof a water tower water pump respectively; the coordinated control processing device is used for calculating the remaining power generation amount of the wind power generation system and controlling the on and off of each power supply circuit according to the remaining power generation amount and running of the pumped storage water pump and a water tank water pump, so that the remaining power generation of the wind power generation system provides a working power source for the water tank water pump or the pumped storage water pump, and the priority of the water tank water pump for utilizing the remaining power generation amount is higher than that of the pumped storage water pump. The cooperative operation system can increase the utilization rate of wind power, reduce wind curtailment andadjust the peak and fill the valley through pumped storage at the same time; the problem of low water pressure of high-rise households in a water use peak period can be solved.

The invention discloses a multi-target dynamic scheduling method for a wind storage hydrothermal power system based on multi-source complementation, and the method comprises the following steps: 1, building a multi-target dynamic economical scheduling model: 1.1, building four optimization targets: take the minimum thermal power coal consumption, the minimum thermal power output adjustment volume, the maximum thermal power generation and the minimum load fluctuation after the thermal power is inputted to a power grid; 1.2, determining the constraint conditions of the four optimization targets; 2, carrying out the weighting and conversion of the four optimization targets, and obtaining a target function F of the multi-target dynamic economical scheduling model; 3, combining with the target function F, and solving the multi-target dynamic economical scheduling model through employing the improved plant growth simulation algorithm. According to the invention, the method gives full consideration to the economical performance and stability of thermal power operation, the utilization rate of the wind power and hydropower and the adjustment effect of a pumped storage power station, and guarantees the economical performance and stability of operation of the thermal power generating unit while promoting the consumption of the wind power.

The present invention relates to a kind of wind farm active power control method that considers wind-fire alternative transaction, and its technical feature is: comprise the following steps: Step 1, establish wind-fire alternative scheme model M i ;Step 2, set M i The control mode of the control mode and the control parameters of the distribution algorithm and the output limit of the thermal power plant or the output of the thermal power unit; step 3, calculating the wind-fire alternative model M i Power generation space Δp vacated by China Thermal Power Plant i ; Step 4, the wind-fire alternative model M i Power generation space Δp vacated by China Thermal Power Plant i assigned to M i The wind farm in the wind farm; step 5, calculate the active power control command according to the calculation result of the virtual load rate; step 6, send the calculated active power adjustment command of each wind farm to each wind farm for execution. The invention can respond to the demand of wind-fire substitution transaction in real time, implement the most suitable control strategy for the active power of the wind farm, ensure the execution of the wind-fire substitution transaction plan of the wind farm, and take into account the fair scheduling among wind farms.

The invention discloses a low-carbon control method for a power system including gas-coal-fired-wind turbines. The method includes: based on the theory of carbon emission flow, assigning the carbon emission responsibility of the power generation side to the load side, and calculating the non-response time The carbon potential and total carbon emissions of each node on the load side; the Shapley value is introduced to share the carbon emission responsibility to calculate the reasonable range of carbon emissions of each load node, and then according to the reasonable range of carbon emissions and the step-by-step carbon price formulation, the nodes on the load side when there is no response are calculated The cost of carbon emissions; build a two-stage optimization model based on the economic dispatch of the power system as a first-stage optimization model and demand response low-carbon optimal dispatch with carbon prices as a signal, and adjust the load on the user side through demand response, and calculate the load after the response The total carbon emissions and carbon emission costs of each node on the side are compared with the data before the response, thereby reducing the total carbon emissions and carbon emission costs. The invention utilizes the load-side regulation ability to reduce system carbon emission.