电网技术2017，Vol.41Issue(12)：3809-3815,7.DOI:10.13335/j.1000-3673.pst.2017.1985
模块化多电平换流阀运行试验回路电流闭环控制方法研究
Research on Close-Loop Current Control Method of Operational Test Circuit for MMC Valves
摘要
Abstract
Modular multilevel converter (MMC) must pass operational test before field operation to check whether its design meets engineering requirements. According to IEC standards, in operational test, the same current stress as the counterpart under actual operation condition need to be generated qualitatively and quantitatively. In traditional ways, open-loop control method is commonly used to control the current in test circuit and its control accuracy and equivalence both need to be improved. For this purpose, close-loop control methods for direct current, fundamental current and second harmonic current in H-model operational test topology are proposed in this paper. By adopting the methods, above mentioned current components can track their reference values accurately and rapidly, so that the current stress generated in the test is equivalent to the counterpart under actual operation condition. Finally, simulation and experiment verify correctness and effectiveness of the proposed control methods.关键词
模块化多电平换流器/运行试验/回路电流/控制方法Key words
MMC/operational test/circuit current/control method分类
信息技术与安全科学引用本文复制引用
许彬,高冲,杨俊,王秀环,王高勇,周军川..模块化多电平换流阀运行试验回路电流闭环控制方法研究[J].电网技术,2017,41(12):3809-3815,7.基金项目
国家重点研发计划项目(2016YFB09009).Project Supported by The National Key Research and Development Program of China (2016YFB09009). （2016YFB09009）
