Fast Coordinated Power Control for Improving Inertial and Voltage Support Capability of Battery Energy Storage Systems  

作　　者：Zhen Gong Chengxi Liu Filipe Faria Da Silva Yonghao Gui Claus Leth Bak 

机构地区：[1]School of Electrical Engineering and Automation,Wuhan University,Wuhan,430072,China [2]Department of Energy Technology,Aalborg University,9220 Aalborg,Demark [3]Department of Electronic Systems,Aalborg University,9220 Aalborg,Denmark

出　　处：《CSEE Journal of Power and Energy Systems》2025年第1期280-295,共16页中国电机工程学会电力与能源系统学报(英文)

基　　金：supported by the National Natural Science Foundation of China under Project U22B20100;in part by State Key Laboratory of Power System Operation and Control(SKLD24 KM14);State-funded Postdoctoral Researcher Program(GZC20231212)。

摘　　要：This paper proposes a fast coordinated power control method based on two augmented channels(AC)in battery energy storage system(BESS)to improve inertial and voltage support capability,i.e.,a frequency-reactive power channel(FRPC)and a voltage-real power channel(VRPC).For frequency control in the power distribution system with high resistance/inductance ratio,the coupling mechanism between rate of change of frequency(RoCoF)and required reactive power(RRP)of grids is analyzed,indicating RoCoF is proportional to RRP.Thus,RoCoF is utilized in FRPC to generate reactive power for complementary inertial emulating control.Meanwhile,for voltage control,coupling characteristics between rate of change of voltage(RoCoV)and demanding real power(DRP)of grids is also studied,revealing RoCoV is proportional to DRP.Therefore,it can be adopted in VRPC to generate real power for complementary voltage control.Then,grid-voltage-modulated direct power control is selected as the inner power control loop to track power references with faster dynamic performance compared with traditional vector-oriented control.Finally,simulations and hardware-in-loop experiments validate improvement in performance of grid frequency and voltage control based on the proposed method.

关 键 词：Augmented channels direct power control frequency-reactive power channel(FRPC) inertial and voltage support voltage-real power channel(VRPC) 

分 类 号：TM614[电气工程—电力系统及自动化] TM91