A Control Strategy for Battery Energy Storage Systems Participating in Primary Frequency Control Considering the Disturbance Type

被引:11
|
作者
Meng, Ya [1 ]
Li, Xinran [1 ]
Liu, Xiaolong [1 ]
Cui, Xiwen [2 ]
Xu, Piao [3 ]
Li, Shujuan [4 ]
机构
[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China
[2] Beijing Kedong Elect Power Control Syst Co Ltd, Beijing 100192, Peoples R China
[3] State Grid Hunan Elect Power Corp Ltd, Yiyang Power Supply Co, Yiyang 413002, Peoples R China
[4] Southeast Univ, Sch Elect Engn, Nanjing 210096, Jiangsu, Peoples R China
关键词
Adaptation models; Switches; Power system stability; Stability analysis; Power grids; Batteries; State of charge; Adaptive control strategy; battery energy storage system (BESS); disturbance type; primary frequency control; state of charge (SOC); DYNAMIC SECURITY; SUPPORT; COORDINATION; GENERATION; WIND; LOAD;
D O I
10.1109/ACCESS.2021.3094309
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In power systems, various types of disturbances can randomly affect the active power balance, which can result in unexpected frequency changes. A battery energy storage system (BESS) is an effective technique to assist power system primary frequency control. In this work, a comprehensive self-adaptive strategy considering load disturbance types is proposed that enables BESS participation in the primary frequency control of power grids. First, the different types of load disturbances in the power system are divided into two categories, namely, step disturbance and continuous small disturbance. Then, the advantages of virtual inertia control and virtual droop control are taken into full consideration. Model A and Model B are proposed to match the two load disturbance types. Model A is used to rapidly prevent sudden changes in frequency under step disturbance conditions without restricting the state of charge (SOC) of the BESS. Under the conditions of continuous small disturbances, we further propose Model B in which primary frequency control is realized while considering SOC recovery. Compared with the previous primary frequency control methods, the presented approach significantly improves the stability of complicated and changeable power systems. Meanwhile, it fulfills the frequency control requirements with superior frequency control performance.
引用
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页码:102004 / 102018
页数:15
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