| 引用本文: | 石荣亮,张磊,李军徽,于雁南,张玉.基于三重分数阶的构网型虚拟同步机并网改进策略[J].电力自动化设备,2025,45(7):183-189,224 |
| SHI Rongliang,ZHANG Lei,LI Junhui,YU Yannan,ZHANG Yu.Improved grid-connected strategy of triple fractional order based grid-forming virtual synchronous generator[J].Electric Power Automation Equipment,2025,45(7):183-189,224 |
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| 摘要: |
| 构网型虚拟同步机(GFVSG)在引入虚拟惯量控制的同时，增加了并网系统的控制阶数与并网有功动态振荡的风险。为此，提出2种基于三重分数阶的GFVSG(TFO-GFVSG)改进策略，即TFO-GFVSG将GFVSG中的虚拟惯量环节替换为三重分数阶虚拟惯量环节，以达到降低GFVSG并网系统控制阶数、增加系统可调参数、抑制并网有功动态振荡、降低输出频率过冲幅值的效果。利用MATLAB仿真以及实验对比结果共同验证了所提TFO-GFVSG策略在应对有功指令与电网频率阶跃扰动下的有效性与优越性。 |
| 关键词: 构网型虚拟同步机 虚拟惯量 动态振荡 三重分数阶 控制阶数 可调参数 |
| DOI：10.16081/j.epae.202503023 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(52467022)；广西自然科学基金资助项目(2025GXNSFAA069219)；现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学)开放课题(MPSS2024-08) |
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| Improved grid-connected strategy of triple fractional order based grid-forming virtual synchronous generator |
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SHI Rongliang1,2, ZHANG Lei1, LI Junhui2, YU Yannan1, ZHANG Yu1
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1.Key Laboratory of Advanced Manufacturing and Automation Technology Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin 541006, China;2.Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin 132012, China
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| Abstract: |
| Grid-forming virtual synchronous generator(GFVSG) increases the control order of grid-connected system and the dynamic oscillation risk of grid-connected active power while introducing virtual inertia control. Therefore, two improved strategies of triple fractional order-based GFVSG(TFO-GFVSG) are proposed. TFO-GFVSG replaces the virtual inertia link in GFVSG with a triple fractional order virtual inertia link, so as to reduce the control order of GFVSG grid-connected system, increase the adjustable parameters of the system, suppress the dynamic oscillation of grid-connected active power and reduce the overshoot amplitude of the output frequency. Based on MATLAB simulation and experimental comparison results, the effectiveness and superiority of the proposed TFO-GFVSG strategy in dealing with active power command disturbance and grid frequency step disturbance are verified. |
| Key words: grid-forming virtual synchronous generator virtual inertia dynamic oscillation triple fractional order control order adjustable parameter |
