电力系统自动化2016，Vol.40Issue(23)：142-149,8.DOI:10.7500/AEPS20150722006
基于子模块瞬时功率跟随模块化多电平矩阵变换器控制策略
Control Strategy for Modular Multilevel Matrix Converters Based on Submodule Instantaneous Power Tracking
摘要
Abstract
By an instantaneous power characteristics analysis of cascaded sub-modules of each arm in the special matrix topology,a control strategy for novel modular multilevel matrix converters based on submodule instantaneous power tracking is proposed.The capacitor voltage DC deviation and differential-frequency voltage ripple mixed is fed back direct and controlled as a whole in the balancing control loop between arms,the high frequency circulation being inj ected by tracking the instantaneous power amplitude envelope to solve converters”application range restriction from reactive power distribution and too high a differential-frequency voltage ripple. Under the constraint of a single circulation path, the output-frequency circulation superimposed adj usts the nonzero sequence active power deviation between arms,while realizing interphase balancing control by the input-frequency circulation.The mode of circulation synthesis does not affect control independence and is easy to carry out. The arm current loop can realize the decoupling control of both AC-side current and internal circulation without complicated vector transformation.Finally,the effectiveness of the proposed control scheme under different working conditions is verified by experimental results.关键词
模块化多电平矩阵变换器/三相六桥臂/瞬时功率跟随/混合量反馈/纹波电压/电流控制Key words
modular multilevel matrix converter(M3 C)/three-phase six-arm/instantaneous power tracking/mixed component feedback/voltage ripple/current control引用本文复制引用
李峰,王广柱..基于子模块瞬时功率跟随模块化多电平矩阵变换器控制策略[J].电力系统自动化,2016,40(23):142-149,8.基金项目
国家自然科学基金资助项目(51541708)。This work is supported by National Natural Science Foundation of China(No.51541708) （51541708）
