Grid-Forming Control for Solar Generation System with Battery Energy Storage

Yupeng Cai, Lujie Yu (), Meng Wu, Shengyang Lv, Ziyu Fu, Wenhao Tong, Wei Li and Songjie Shi
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Yupeng Cai: State Grid Liaoning Electric Power Co., Ltd., Electric Power Science Research Institute, Shenyang 110006, China
Lujie Yu: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Meng Wu: State Grid Liaoning Electric Power Co., Ltd., Electric Power Science Research Institute, Shenyang 110006, China
Shengyang Lv: State Grid Liaoning Electric Power Co., Ltd., Electric Power Science Research Institute, Shenyang 110006, China
Ziyu Fu: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Wenhao Tong: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Wei Li: State Grid Liaoning Electric Power Co., Ltd., Electric Power Science Research Institute, Shenyang 110006, China
Songjie Shi: State Grid Liaoning Electric Power Co., Ltd., Electric Power Science Research Institute, Shenyang 110006, China

Energies, 2024, vol. 17, issue 15, 1-16

Abstract: Solar generation systems with battery energy storage have become a research hotspot in recent years. This paper proposes a grid-forming control for such a system. The inverter control consists of the inner dq-axis current control, the dq-axis voltage control, the phase-locked loop (PLL) based frequency control, and the DC voltage control. The proposed control embeds the PLL into the grid-forming inverter control, offering the advantages of better synchronization and fault current-limiting capability. With the proposed control, the battery energy storage is able to provide inertial and primary frequency support during the grid frequency disturbance. Simulation models are established in PSCAD/EMTDC, and the results during the active power variation and AC voltage variation, the grid frequency disturbance, grid fault, and mode switch validate the effectiveness of the proposed control.

Keywords: battery energy storage; frequency control; grid-forming control; inverter control; solar generation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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