| 引用本文: | 高本锋,江婷,于弘洋,赵国亮,王飞跃,邵冰冰,赵书强.H桥级联型SSSC的动态模型及小干扰稳定性分析[J].电力自动化设备,2020,40(2): |
| GAO Benfeng,JIANG Ting,YU Hongyang,ZHAO Guoliang,WANG Feiyue,SHAO Bingbing,ZHAO Shuqiang.Dynamic model and small interference stability analysis of H-bridge cascaded SSSC[J].Electric Power Automation Equipment,2020,40(2): |
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| 摘要: |
| 基于模块化建模的方法，考虑实际电路结构，建立了含H桥级联型静止同步串联补偿器(SSSC)的系统小信号模型。结合实际工程参数，通过对比小信号模型计算结果与PSCAD/EMTDC电磁仿真结果，验证了小信号模型的准确性。然后采用特征值分析法分析了该系统的振荡模态，并研究了控制器参数对系统小干扰稳定性的影响。研究结果表明随着解耦控制器以及均压控制器参数的增大，系统稳定性均增强。最后通过时域仿真算例验证了特征值分析结论的准确性。 |
| 关键词: H桥级联型SSSC 小信号模型 特征值分析法 小干扰稳定性 时域仿真法 |
| DOI：10.16081/j.epae.202001033 |
| 分类号:TM712 |
| 基金项目:国家自然科学基金资助项目(51507064)；国家电网公司科技项目(GEIRI-DL-71-18-005)；中央高校基本科研业务费专项资金资助项目(2018MS087) |
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| Dynamic model and small interference stability analysis of H-bridge cascaded SSSC |
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GAO Benfeng1, JIANG Ting1, YU Hongyang2, ZHAO Guoliang2, WANG Feiyue1, SHAO Bingbing1, ZHAO Shuqiang1
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1.Key Laboratory of Distributed Energy Storage and Microgrid of Hebei Province, North China Electric Power University, Baoding 071003, China;2.State Key Laboratory of Advanced Transmission Technology, Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102200, China
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| Abstract: |
| Based on the modular modeling method and considering the actual circuit structure, the small signal model of the system with H-bridge cascaded SSSC(Static Synchronous Series Compensator) is established. Based on the actual engineering parameters, the accuracy of the small signal model is verified by comparing the calculative results of the small signal model with the PSCAD/EMTDC electromagnetic simulative results. Then the eigenvalue analysis method is used to analyze the system oscillation mode, and the influence of controller parameters on the system stability under small disturbance is studied. The study results show that the system stability is enhanced with the increase of the parameters of the decoupling controller and the equalization controller. Time domain simulation verifies the accuracy of eigenvalue analytical conclusions. |
| Key words: H-bridge cascaded SSSC small signal model eigenvalue analysis method small interference stability time domain simulation |
