中国电机工程学报2024，Vol.44Issue(19)：7817-7828,中插28,13.DOI:10.13334/j.0258-8013.pcsee.230825
高频链互联MMC电机调速系统高低频共模电压完全抑制策略
High and Low Frequency Common-mode Voltage Complete Elimination Strategy for High Frequency Link Interconnected MMC Motor Speed Regulating System
摘要
Abstract
This paper proposes a ripple-power decoupling based modular multilevel converter(RPD-MMC)motor governing system.Through the high frequency link based on the structure of half-bridge and transformer,the submodules(SM)are isolated and connected to realize the decoupling of three-phase ripple-power in SM capacitor,and thus eliminate the low-frequency fluctuation component of common-mode voltage(CMV).A pulse optimization control CPS-SPWM(POC-CPS-SPWM)strategy is proposed to control the number of SM on the upper and lower arms of the three-phase MMC at any time to maintain the same,so as to eliminate the high frequency fluctuation components of CMV.Finally,complete elimination of CMV can be achieved.Starting from the analysis of the mechanism and characteristics of CMV,this paper discusses the proposal,principle analysis and effect realization of low and high frequency suppression in detail.Finally,through simulation and experimental verification,the feasibility and effectiveness of the mechanism analysis of CMV and the two strategies to eliminate CMV are verified.关键词
电机调速系统/模块化多电平换流器/共模电压/波动功率解耦/脉冲优化控制CPS-SPWMKey words
motor speed regulation system/modular multilevel converter(MMC)/common-mode voltage/ripple power decoupling/pulse optimization control CPS-SPWM分类
信息技术与安全科学引用本文复制引用
王紫喆,滕甲训,付欢帅,朱艳萍,潘尧,赵巍,李昕,孙孝峰..高频链互联MMC电机调速系统高低频共模电压完全抑制策略[J].中国电机工程学报,2024,44(19):7817-7828,中插28,13.基金项目
河北省自然科学基金项目(E2021203162,F2022203005) （E2021203162,F2022203005）
河北省科技计划项目(236Z2004G). Project Supported by Natural Science Foundation of Hebei Province(E2021203162,F2022203005) （236Z2004G）
S&T Program of Hebei Province(236Z2004G). （236Z2004G）
