| 一种光储独立并网式虚拟同步发电机控制方法 |
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| 引用本文： | 王逸超,李湘旗,陈仲伟,刘浩田,伍也凡. 一种光储独立并网式虚拟同步发电机控制方法[J]. 太阳能学报, 2022, 0(1) |
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| 作者姓名： | 王逸超 李湘旗 陈仲伟 刘浩田 伍也凡 |
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| 作者单位： | 国网湖南省电力有限公司经济技术研究院;能源互联网供需运营湖南省重点实验室 |
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| 基金项目： | 湖南省自然科学基金青年项目(2019JJ50006);湖南省科技创新平台与人才计划(2019TP1053)。 |
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| 摘 要： | 以光储独立并入电网的虚拟同步发电机结构为研究对象,提出考虑储能输出功率限制的有功调节方案和光储共同参与电压调整的无功调节方案。在有功功率环,当储能系统的充放电功率达到上限时,通过附加控制调节机械转矩,稳定虚拟同步发电机控制方程,避免储能过充或过放风险。在无功功率环,光伏系统与储能系统共同承担无功调压任务,减轻储能系统的无功功率输出负担,实现无功功率合理分配。最后,通过仿真分析和RT-LAB实验结果验证了该控制策略的正确性和有效性。
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| 关 键 词： | 光伏发电 储能 功率控制 无功功率 荷电状态 虚拟同步发电机 |
AVIRTUALSYNCHRONOUS GENERATOR CONTROLMETHOD BASED ON INDEPENDENT GRID-CONNECTED STRUCTURE OF PHOTOVOLTAIC SYSTEM AND ENERGY STORAGE SYSTEM |
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| Wang Yichao,Li Xiangqi,Chen Zhongwei,Liu Haotian,Wu Yefan. AVIRTUALSYNCHRONOUS GENERATOR CONTROLMETHOD BASED ON INDEPENDENT GRID-CONNECTED STRUCTURE OF PHOTOVOLTAIC SYSTEM AND ENERGY STORAGE SYSTEM[J]. Acta Energiae Solaris Sinica, 2022, 0(1) |
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| Authors: | Wang Yichao Li Xiangqi Chen Zhongwei Liu Haotian Wu Yefan |
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| Affiliation: | (State Grid Hunan Electric Power Company Limited Economic&Technical Research Institute,Changsha 410004?China;Hunan Key laboratory of Energy Internet Supply-demand and Operation,Changsha 410004,China) |
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| Abstract: | This paper proposes an active power adjustment scheme and a reactive power cooperative regulation scheme.In the active power loop,when the charge power or the discharge power of the energy storage system reaches the upper limit,the mechanical torque is adjusted through additional control to stabilize the virtual synchronous generator control equation,which avoid the risk of overload of the energy storage.In the reactive power loop,the photovoltaic system and the energy storage system jointly undertake the task of reactive power regulation and reduce the reactive power output burden of the energy storage system as well as achieving a reasonable distribution of reactive power.Finally,the correctness and effectiveness of this control strategy are verified by simulation analysis and RT-LAB experimental results. |
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| Keywords: | PV power energy storage power control reactive power state of charge virtual synchronous generator |
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