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18 July 2023 The principle and control strategy of primary frequency modulation of energy storage auxiliary photovoltaic station
Song Zhao, Shaojia Dang, Wei Zhao, Rongli Li, Lei Zhou, Xu Li, Qian Zhang, Ronghua Du, Hongyan Huo, Xiaogang Xin, Guobin Zhang, Ruijun Guo, Jianhua Yin, Haicun Yu, Chengguo Qin, Qiuping Li
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Proceedings Volume 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023); 1272231 (2023) https://doi.org/10.1117/12.2679451
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 2023, Hangzhou, China
Abstract
Under the "double carbon" goal, the proportion of new energy in China's power system is increasing year by year, and the power grid is facing huge challenges under the "double high" power system. Photovoltaic power generation has a strong volatility. After grid connection, it has no ability to provide support for the frequency stability of the system. On the contrary, it will bring uncontrollable interference to the grid. Especially when the power grid has serious frequency fluctuations, the ability and time of frequency control are more difficult to meet the system requirements. The above problems are huge challenges for PV grid connection. The energy storage has the characteristics of fast response, high climbing speed and accurate action. In order to improve the impact of photovoltaic grid connection on the system frequency, introducing energy storage to assist the primary frequency modulation of photovoltaic stations can enhance the friendliness of photovoltaic power generation. Finally, this paper studies the primary frequency modulation control strategy of photovoltaic station assisted by energy storage. Through simulation, the curves of energy storage in different situations and the amount of action are obtained.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Song Zhao, Shaojia Dang, Wei Zhao, Rongli Li, Lei Zhou, Xu Li, Qian Zhang, Ronghua Du, Hongyan Huo, Xiaogang Xin, Guobin Zhang, Ruijun Guo, Jianhua Yin, Haicun Yu, Chengguo Qin, and Qiuping Li "The principle and control strategy of primary frequency modulation of energy storage auxiliary photovoltaic station", Proc. SPIE 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 1272231 (18 July 2023); https://doi.org/10.1117/12.2679451
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KEYWORDS
Frequency modulation
Solar energy
Photovoltaics
Modulation frequency
Power grids
Control systems
Frequency response
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