中国电机工程学报2026，Vol.46Issue(12)：5057-5069,中插19,14.DOI:10.13334/j.0258-8013.pcsee.251136
死区下含被动开关事件的全半混合MMC全模态等效建模方法
All Modes of Full-half Hybrid MMC With Passive Switching Events Under Dead Zone Equivalent Modeling Method
摘要
Abstract
Power electronic devices enable controllable energy conversion between the AC and DC sides of the full-half hybrid modular multilevel converter(MMC)through its switching events.Considering the switching delay of the device and the propagation delay of the drive circuit,a dead-time should be introduced into the conduction signal of the switch.During the dead-time,the passive switching event dominates the circuit state,and the switching event is no longer fixed at the integer multiple time point of the simulation step.The working state of the sub-module will produce uncontrolled dynamic switching within a single simulation step.Aiming at the problem that the passive switching event does not match the fixed simulation steps,this paper proposes an all modes of full-half hybrid MMC equivalent modeling method that can accurately locate the passive switching event.The Thevenin equivalent modeling based on the ideal switching device is used for the mode dominated by the active switching event,and the virtual diode is introduced for the mode dominated by the passive switching event.The branch section is used to write the electrical branch information of the valve section so as to connect each mode in series.The detailed model and equivalent model of the switch control signal with dead zone are built on the PSCAD simulation platform.The simulation results show that the proposed model has high accuracy and acceleration effect.关键词
全半混合模块化多电平换流器/开关死区/被动开关事件定位/等效建模Key words
full-half hybrid modular multilevel converter(MMC)/switching dead zone/passive switching event localization/equivalent modeling分类
信息技术与安全科学引用本文复制引用
潘可盈,许建中..死区下含被动开关事件的全半混合MMC全模态等效建模方法[J].中国电机工程学报,2026,46(12):5057-5069,中插19,14.基金项目
国家自然科学基金项目(52277094) （52277094）
国家电网有限公司科技项目(5500-202255495A-3-0-ZZ).Project Supported by National Natural Science Foundation of China(52277094) （5500-202255495A-3-0-ZZ）
Science and Technology Project of State Grid Corporation of China(5500-202255495A-3-0-ZZ). （5500-202255495A-3-0-ZZ）
