| 基于自适应惯量阻尼综合控制算法的虚拟同步发电机控制策略 |
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| 引用本文： | 李东东,朱钱唯,程云志,刘庆飞,林顺富,杨帆,边晓燕. 基于自适应惯量阻尼综合控制算法的虚拟同步发电机控制策略[J]. 电力自动化设备, 2017, 37(11) |
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| 作者姓名： | 李东东 朱钱唯 程云志 刘庆飞 林顺富 杨帆 边晓燕 |
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| 作者单位： | 上海电力学院 电气工程学院，上海 200090; 上海高校高效电能应用工程研究中心，上海 200090,上海电力学院 电气工程学院，上海 200090,美国德州电力可靠性委员会，美国 泰勒 76574,上海电力学院 电气工程学院，上海 200090,上海电力学院 电气工程学院，上海 200090; 上海高校高效电能应用工程研究中心，上海 200090,上海电力学院 电气工程学院，上海 200090; 上海高校高效电能应用工程研究中心，上海 200090,上海电力学院 电气工程学院，上海 200090; 上海高校高效电能应用工程研究中心，上海 200090 |
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| 基金项目： | 国家自然科学基金资助项目(51507100,51407114)；上海市科学技术委员会资助项目(15YF1404600,13DZ2251900,10DZ2273400)；上海市教育发展基金会和上海市教育委员会“曙光计划”资助项目(15SG50) |
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| 摘 要： | 在逆变控制领域,虚拟同步发电机(VSG)控制策略可解决分布式能源并网系统缺少惯性的问题来有效支撑电网频率,然而现有VSG控制手段往往忽略了阻尼的作用。为进一步提升VSG对频率稳定性的贡献,在传统VSG控制策略的基础上,结合力学原理证实了VSG虚拟惯量可进行实时变化的可行性,分析了同步发电机转子惯量和阻尼系数与系统频率稳定性的关系,并设计了一种自适应惯量阻尼综合控制(SA-RIDC)算法,实现了虚拟转动惯量与虚拟阻尼的交错控制。通过MATLAB/Simulink仿真工具,将所提出的SA-RIDC算法与传统固定惯量阻尼控制和自适应惯量控制进行对比,结果表明SA-RIDC算法在改善系统频率稳定性方面有着显著的效果。
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| 关 键 词： | 虚拟同步发电机；频率稳定性；阻尼；转子惯量；自适应控制 |
Control strategy of virtual synchronous generator based on self-adaptive rotor inertia and damping combination control algorithm |
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| LI Dongdong,ZHU Qianwei,CHENG Yunzhi,LIU Qingfei,LIN Shunfu,YANG Fan and BIAN Xiaoyan. Control strategy of virtual synchronous generator based on self-adaptive rotor inertia and damping combination control algorithm[J]. Electric Power Automation Equipment, 2017, 37(11) |
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| Authors: | LI Dongdong ZHU Qianwei CHENG Yunzhi LIU Qingfei LIN Shunfu YANG Fan BIAN Xiaoyan |
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| Affiliation: | College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; Shanghai Higher Institution Engineering Research Center of High Efficiency Electricity Application, Shanghai 200090, China,College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China,Electric Reliability Council of Texas, Taylor 76574, USA,College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China,College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; Shanghai Higher Institution Engineering Research Center of High Efficiency Electricity Application, Shanghai 200090, China,College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; Shanghai Higher Institution Engineering Research Center of High Efficiency Electricity Application, Shanghai 200090, China and College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; Shanghai Higher Institution Engineering Research Center of High Efficiency Electricity Application, Shanghai 200090, China |
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| Abstract: | The VSG(Virtual Synchronous Generator) can support frequency stability of power grid by solving the problem of lacking inertia in distributed generation system in the inverter control field. However, the existing VSG control strategies often neglect the effect of damping. To further improve the contribution of VSG on the frequency stability, based on the traditional VSG control strategy and combined with the mechanical knowledge, the feasibility that the virtual rotor inertia of VSG can change in real-time is verified. The relationship between the frequency stability and the rotor inertia/damping coefficient is analyzed, and an SA-RIDC(Self-Adaptive Rotor Inertia and Damping Combination control) algorithm is proposed to realize the interleaving control of the virtual rotor inertia and the virtual damping. The proposed SA-RIDC algorithm is compared with the traditional constant parameters control method and the self-adaptive rotor inertia control method by MATLAB/Simulink simulation, the simulative results show that the SA-RIDC algorithm can significantly improve the frequency stability of power grid. |
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| Keywords: | virtual synchronous generator frequency stability damping rotor inertia self-adaptive control |
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