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arXiv 2409.03475eess.SYcs.SY
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一种增强虚拟同步发电机暂态稳定性的有效限流策略

An Effective Current Limiting Strategy to Enhance Transient Stability of Virtual Synchronous Generator

Yifan Zhao, Zhiqian Zhang, Ziyang Xu, Zhenbin Zhang, Jose Rodriguez

AI总结:

针对虚拟同步发电机可再生能源并网中的过电流与暂态稳定问题,本文利用EPAC解释不同限流策略的影响,并提出一种经MATLAB/Simulink验证、稳定性更优的有效限流策略。

摘要:

VSG控制已成为整合可再生能源的一项关键技术。然而,可再生能源对过电流的耐受能力有限,因此必须实施限流(CL)策略以缓解过电流。引入不同的CL策略会对系统产生不同影响。尽管以往研究已经讨论了不同CL策略对系统的影响,但缺乏直观且明确的解释。同时,以往的CL策略未能有效确保系统稳定性。本文采用等比例面积准则(EPAC)方法,直观解释不同CL策略如何影响暂态稳定性。在此基础上,提出一种有效的限流策略。在MATLAB/Simulink中进行仿真,以验证所提策略。仿真结果表明,所提出的有效CL策略表现出更优越的稳定性。

英文摘要:

VSG control has emerged as a crucial technology for integrating renewable energy sources. However, renewable energy have limited tolerance to overcurrent, necessitating the implementation of current limiting (CL)strategies to mitigate the overcurrent. The introduction of different CL strategies can have varying impacts on the system. While previous studies have discussed the effects of different CL strategies on the system, but they lack intuitive and explicit explanations. Meanwhile, previous CL strategy have failed to effectively ensure the stability of the system. In this paper, the Equal Proportional Area Criterion (EPAC) method is employed to intuitively explain how different CL strategies affect transient stability. Based on this, an effective current limiting strategy is proposed. Simulations are conducted in MATLAB/Simulink to validate the proposed strategy. The simulation results demonstrate that, the proposed effective CL strategy exhibits superior stability.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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