摘要
针对传统dq电流解耦双闭环控制的单相级联H桥整流器受系统电感参数变化的影响,同时为避免系统频率偏移的干扰,提出了一种无需电感参数和系统角频率的新型直接功率解耦控制器,实现了有功、无功功率的独立控制.并利用级联延时信号消除算法提取基波正序分量,消除谐波信号带来的影响.在MATLAB/Simulink中搭建了三级联H桥整流器进行仿真分析,仿真结果验证了所提控制方法下直流侧电压波动小,系统响应速度快,谐波抑制能力强的特点.
For the traditional dq current decoupling dual closed-loop control of single-phase cascaded H-bridge rectifier is affected by the change of system inductance parameter,and to avoid the interference of system frequency offset,a new direct power decoupling controller without inductance parameter and system angular frequency is proposed to realize the independent control of active and reactive power.At the same time,it utilizes a cascaded delayed signal cancellation algorithm to extract the fundamental positive sequence components and eliminate the effects caused by harmonic signals.The proposed control method is validated by simulating a three-stage H-bridge rectifier in MATLAB/Simulink with low DC-side voltage fluctuation,fast system response,and high harmonic suppression.
作者
宋平岗
连加巍
陈怡
SONG Ping-gang;LIAN Jia-wei;CHEN Yi(College of Electrical and Electronic Engineering,East China Jiaotong University,Nanchang Jiangxi 330013,China;不详)
出处
《控制理论与应用》
EI
CAS
CSCD
北大核心
2022年第3期402-410,共9页
Control Theory & Applications
基金
国家自然科学基金项目(51367008)资助.
关键词
电力电子变压器
单相级联H桥整流器
直接功率控制
级联延时信号消除
电容电压平衡
power electronic transformer
single phase cascaded H-bridge rectifier
direct power control
cascaded delayed signal cancellation
capacitor voltage balance
