电气传动2019，Vol.49Issue(5)：67-72,6.DOI:10.19457/j.1001-2095.dqcd19287
MMC子模块均压及相间环流抑制方案研究
Research on Voltage Balance of MMC Sub-module and Phase-to-phase Loop Suppression Scheme
邵文权 1王立宝 1程远 1李宁 2陈宁2
作者信息
- 1. 西安工程大学电子信息学院,陕西 西安 710048
- 2. 西安理工大学自动化与信息工程学院,陕西 西安 710048
- 折叠
摘要
Abstract
Modular multilevel converte(r MMC)has a large number of sub-modules,which causes unbalanced sub-module capacitor voltage and phase-to-phase circulation. A higher switching frequency caused in the traditional direct sequencing equalization algorithm was optimized and the switching frequency of the system was reduced by introducing the sub-module capacitance voltage imbalance factor. On this basis,a simple and efficient phase-to-phase loop suppression strategy based on quasi-proportional resonance(QPR)control was proposed to realize the non-stationary tracking of phase-to-phase circulation. The simulation and verifaction show that the proposed control scheme has good equalization and circulation suppression effects.关键词
模块化多电平变换器/电压均衡/环流抑制/准比例谐振Key words
modular multilevel converte(r MMC)/voltage equalization/circulation suppression/quasi-proportional resonanc(e QPR)分类
信息技术与安全科学引用本文复制引用
邵文权,王立宝,程远,李宁,陈宁..MMC子模块均压及相间环流抑制方案研究[J].电气传动,2019,49(5):67-72,6.
