LYU Yongqing,DOU Xiaobo,YANG Dongmei,et al.Load-frequency Robust Control for Energy Storage Power Station Considering Correction of State of Charge and Communication Delay[J].Automation of Electric Power Systems,2021,45(10):59-67.
LYU Yongqing,DOU Xiaobo,YANG Dongmei,et al.Load-frequency Robust Control for Energy Storage Power Station Considering Correction of State of Charge and Communication Delay[J].Automation of Electric Power Systems,2021,45(10):59-67. DOI: 10.7500/AEPS20200811007.
Load-frequency Robust Control for Energy Storage Power Station Considering Correction of State of Charge and Communication Delay
To solve the coordination problems between energy storage power stations when participating in frequency regulation and traditional units and the influence of communication delay
this paper designs a load frequency robust control method for energy storage power station considering the correction of state of charge and communication delay. Firstly
the regression and amendment link of state of charge (SOC) is designed to coordinate with traditional units when the energy storage power station participates in the frequency control to realize the SOC margin adjustment. Then
considering the effect of communication delay
this paper designs a delay system model of regional power grids with regression and correction of SOC in energy storage power stations. Secondly
considering the impact of communication delay on design performance of system control
the system robust controller is designed for load frequency control of energy storage power stations based on the delayed marginal calculation of the load frequency control system to restrain power disturbance of renewable energy sources and realize the quick recovery of system frequency. Finally
the simulation of the load frequency control system is implemented in the MATLAB/Simulink platform
and the validity of the proposed strategy is verified.
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