Frequency modulation optimization operation method based on participation of energy storage system in large-scale offshore wind power

Abstract

The invention provides a frequency modulation optimization operation method based on participation of an energy storage system in large-scale offshore wind power. The method comprises the steps of selecting an offshore wind power plant with the built energy storage system in a certain coastal area, acquiring an offshore wind power prediction output value and energy storage system related parameters, and acquiring an energy market electricity price through a scene analysis method, constructing a frequency modulation auxiliary service optimization operation model in which the energy storage system participates in containing large-scale offshore wind power by taking maximum joint income of the offshore wind power and the energy storage system as a target, considering offshore wind power output uncertainty, and establishing offshore wind power output fuzzy opportunity constraints, adopting a method that offshore wind power and an energy storage system participate in an energy market and frequency modulation auxiliary service for optimization operation, and solving a model on the basis of an MATLAB optimization toolbox. According to the method, the output of the offshore wind power andenergy storage system is optimized, the offshore wind power wind curtailment amount can be effectively reduced, the total income and social benefits of combined operation of the offshore wind power and energy storage system are improved, and the investment recovery period of the energy storage system is shortened.

Description

technical field [0001] The invention relates to the field of electric power auxiliary services, in particular to a frequency regulation optimization operation method based on an energy storage system participating in large-scale offshore wind power. Background technique [0002] In recent years, with the increasingly serious energy crisis and environmental problems, renewable energy such as offshore wind power has attracted more and more attention. With a coastline of 18,000 kilometers, my country has a natural advantage in developing offshore wind power. Coastal provinces represented by Fujian, Guangdong, Zhejiang, and Jiangsu are rich in offshore wind power resources. All coastal provinces are vigorously developing offshore wind power resources. Compared with onshore wind power, offshore wind power has the characteristics of being closer to the power load center, offshore wind turbines do not occupy land resources, output fluctuations are smaller, and offshore wind turbine...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to combine the energy storage system and large-scale offshore wind power to participate in frequency modulation auxiliary services, while considering the loss cost of the energy storage system, the uncertainty of electricity prices in the energy market, and the uncertainty of new energy. Energy system initial investment cost, scenario method and fuzzy opportunity constraints to solve the above problems

Images