| 引用本文: | 党超亮,同向前,宋卫章,黄晶晶.基于降阶模型的三相Vienna整流器交流级联稳定性分析[J].电力自动化设备,2018,(10): |
| DANG Chaoliang,TONG Xiangqian,SONG Weizhang,HUANG Jingjing.Stability analysis of three phase Vienna rectifier AC cascade system based on reduced order model[J].Electric Power Automation Equipment,2018,(10): |
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| 摘要: |
| 以三相Vienna整流器交流级联稳定性为研究对象，给出了dq坐标系下三相交流系统小信号简化稳定性判据，构建了面向级联系统小信号稳定性分析的Vienna整流器阻抗方程；提出并采用一种虚拟阻抗方法，有效改善了Vienna交流级联系统小信号稳定性；构建了完整的仿真与实验模型，给出了详细的理论分析与虚拟阻抗设计方案，结果表明了所提阻抗与小信号稳定性分析的正确性。 |
| 关键词: 三电平Vienna整流器 降阶模型 LC滤波器 稳定性 阻抗调节 |
| DOI：10.16081/j.issn.1006-6047.2018.10.021 |
| 分类号:TM461 |
| 基金项目:国家自然科学基金资助项目(51677151,51507138)；陕西省重大科技创新专项资金资助项目(2015ZKC02-01)；陕西省重点研发计划——国际交流与合作项目(2017KW-035) |
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| Stability analysis of three phase Vienna rectifier AC cascade system based on reduced order model |
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DANG Chaoliang, TONG Xiangqian, SONG Weizhang, HUANG Jingjing
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School of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China
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| Abstract: |
| Taking the small signal stability analysis of three-phase Vienna rectifier AC cascade system as the research object, the simplified small signal stability criterion in dq coordinate system is put forward, further, a Vienna rectifier impedance equation for small signal stability analysis in cascade system is given. Finally, a virtual impedance method is proposed to improve the small signal stability of Vienna rectifier system. A complete simulation and test model is built, and the detailed theoretical analysis and design scheme of virtual impedance are given. The results show the correctness of the small signal stability analysis and the proposed virtual impedance method. |
| Key words: three-level Vienna rectifier reduced order model LC filter stability impedance regulator |
