Capacity Optimization Configuration of PV Energy Storage System by Considering Frequency Stability
With the increase of PV penetration rate,frequency stability has gradually become a major problem affecting the op-eration of grids.Battery energy storage system(BESS)helps to enhance the frequency stability of the system.However,much BESS may lead to excessive investment cost,while insufficiency cannot ensure frequency stability.In view of this,an optimiza-tion method of BESS capacity configuration considering frequency stability is proposed.This method establishes a capacity opti-mization model considering frequency response,power generation and BESS parameter constraints,and uses particle swarm op-timization(PSO)to perform optimization in MATLAB platform.The simulation takes an improved IEEE 39 node system as an example to analyze and compare the frequency response with and without BESS under different PV penetration scenarios.The results show that under various PV penetration scenarios,the optimal configuration of BESS capacity effectively avoids enabling of low frequency load shedding during major power outages,and significantly enhances the frequency stability of the grid.
万方数据
维普
