Yusheng Gong
ABSTRACT
When the Photovoltaic-Battery Energy Storage System(PV-BESS) systems virtual synchronous generator(VSG) is in normal operation, its output power tracks the dispatch command value, where the PV adopts the maximum power tracking method, and the deviation between the PV output power and the virtual synchronous machine power command is eliminated by energy storage, which stabilises the DC bus voltage and suppresses the overall output power fluctuation of the PV-BESS systems. As energy storage has different characteristics at different charging and discharging depths, its battery life and performance will receive a significant impact when it is in an over-charge or over-discharge state. To address these issues, a grid-connected PV-BESS systems virtual synchronous generator control method is proposed that takes into account the charging and discharging depth of BESS. The inverter, PV and storage are coordinated and controlled according to the storage charge state.
- Changjie Yin, Nan Quan, Kai Su, Zhanghua Zheng, Tianci Zhang. The current situation and prospect of distributed energy development in my country [J]. Distributed Energy, 2022,7(02):1-7.DOI:10.16513/j. 2096-2185.DE.2207201.Sam Anzaroot and Andrew McCallum. 2013.Google Scholar
- Ma Chao, Liu Lu. Optimal capacity configuration of hydro-wind-PV hybrid system and its coordinative operation rules considering the UHV transmission and reservoir operation requirements[J]. Renewable Energy,2022,198.Google Scholar
- Joan R, Alvaro L, Frede B, Control of power converters in AC microgrids[J]. IEEE Transactions on Power Electronics, 2012, 27(11): 4734-4749.Google ScholarCross Ref
- Han Feng, Zhang Xing, Guo Zixuan, Wang Jilei, Fu Xinxin, Gao Bo. A comparative study of single-loop VSG and multi-loop VSG[J]. Energy Reports,2022,8(S5).Google Scholar
- Lv Zhipeng, Sheng Wanxing, Liu Haitao, Sun Lijing, Wu Ming, Li Rui. Application and Challenge of Virtual Synchronous Machine Technology in Power System[J].Chinese Journal of Electrical Engineering,2017,37(02):349-360.DOI:10.13334/ j.0258-8013.Google Scholar
- Golsorkhi M, Shafiee Q, Lu D, A distributed control framework for integrated photovoltaic-battery-based islanded microgrids[J]. IEEE Transactions on Smart Grid, 2017,8(6):2837-2848.Google ScholarCross Ref
- Torres L M A, Lopes L A C, Moran T L A, Self-Tuning Virtual Synchronous Machine: A Control Strategy for Energy Storage Systems to Support Dynamic Frequency Control[J]. IEEE Transactions on Energy Conversion, 2014, 29(4):833-840.Google ScholarCross Ref
- Li Wenkai, Xie Jie, Zhang Mengzhao, Guo Chunlin. Adaptive damping control strategy of virtual synchronous generator based on fuzzy control[J]. Journal of Physics: Conference Series,2021,2121(1).Google Scholar
- Audrey Moulichon, Mazen Alamir, Vincent Debusschere, Lauric Garbuio, Mustapha Rahmani, Miao Xin Wang,Nouredine Hadjsaid. Observer-Based Current Controller for Virtual Synchronous Generator in Presence of Unknown and Unpredictable Loads[J]. IEEE Transactions on Power Electronics, 2020, PP(99).Google Scholar
- MENG X, LIU J, LIU Z. A generalized droop control for gridsupporting inverter based on comparison between traditionaldroop control and virtual synchronous generator control [J].IEEE Transactions on Power Electronics, 2019, 34(6): 5416-5438.Google ScholarCross Ref
- WEN Yeting, DAI Yuxing, BI Daqiang, et al. A grid friendly PV/BESS distributed generation control strategy [J].Proceedings of the CSEE,2017,37(2): 464-475.Google Scholar
- Shi Rongliang, Zhang Xing, Liu Fang, Control technologies of multi-energy complementary microgrid operation based on virtual synchronous generator[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 170-180.Google Scholar
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