| 基于微分补偿环节虚拟惯性的虚拟同步发电机控制策略 |
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| 引用本文： | 徐海珍,张兴,刘芳,石荣亮,胡超,倪华.基于微分补偿环节虚拟惯性的虚拟同步发电机控制策略[J].电力系统自动化,2017,41(3):96-102. |
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| 作者姓名： | 徐海珍 张兴 刘芳 石荣亮 胡超 倪华 |
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| 作者单位： | 合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥工业大学电气与自动化工程学院, 安徽省合肥市 230009,合肥阳光电源股份有限公司, 安徽省合肥市 230088 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2015AA050607) |
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| 摘 要： | 针对常规基于一阶环节虚拟惯性的虚拟同步发电机(VSG)并网运行时输出功率控制动、稳态特性存在矛盾的问题,提出了基于微分补偿环节虚拟惯性的VSG控制策略,该控制策略在常规VSG控制结构前向通道加入微分补偿环节,从而在保证输出功率稳态控制精度的同时,加快了动态功率响应速度,增加了系统阻尼,有效减小了储能单元动态过程的功率冲击。仿真和实验验证了所提方案的有效性。
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| 关 键 词： | 虚拟同步发电机 虚拟惯性 微网(微电网) 微分补偿 |
| 收稿时间： | 2016/4/20 0:00:00 |
| 修稿时间： | 2016/9/26 0:00:00 |
Control Strategy of Virtual Synchronous Generator Based on Differential Compensation Virtual Inertia |
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| XU Haizhen,ZHANG Xing,LIU Fang,SHI Rongliang,HU Chao and NI Hua.Control Strategy of Virtual Synchronous Generator Based on Differential Compensation Virtual Inertia[J].Automation of Electric Power Systems,2017,41(3):96-102. |
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| Authors: | XU Haizhen ZHANG Xing LIU Fang SHI Rongliang HU Chao and NI Hua |
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| Affiliation: | School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China,School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China and Sungrow Power Supply Co. Ltd., Hefei 230088, China |
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| Abstract: | Aiming at the regulation contradictions between output active power steady-state and dynamic characteristics when the conventional virtual synchronous generator(VSG)based on first-order link virtual inertia is connected to the utility grid, a VSG control strategy based on differential compensation virtual inertia is proposed. Through the incorporation of a differential link in the forward channel of conventional VSG control structure, the control strategy accelerates the power response speed, increases the damping of the system, and reduces the power impact on the energy storage unit of VSG during the dynamic process, while ensuring the maintenance of the output active power steady-state control precision. Simulation and experiments have validated the effectiveness of the proposed strategy. |
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| Keywords: | virtual synchronous generator(VSG) virtual inertia microgrid differential compensation |
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