摘要
在交-直-交型矩阵变换器(AC-DC-ACMC)的基础上,提出了一种新型的多驱动系统拓扑电路及其控制策略。拓扑电路由一个整流单元和多个逆变单元组成,多个逆变单元接在同一直流母线上,可以同时驱动和控制多路负载。PWM整流控制可以获得单位输入功率因数的正弦PWM波输入电流。在多个逆变单元中采用空间矢量调制,可以分别获得不同频率和幅值的正弦PWM波输出电压;同时通过合理插入零矢量,实现输入侧零电流换流。仿真实验结果证实了文中所提出理论的正确性。
Basing on AC-DC-AC matrix converter , a novel topology of multi-drive system and control strategy are proposed. Topology consists of one rectify unit and several inverter units, which are connected to same DC bus to drive different loads, rectifier control of pulse wide modulation（PWM） can get sinusoidal PWM input current with unity input power factor. Voltage space vector PWM（VSVPWM） in inverter circuits can get sinusoidal PWM output voltage with different frequency and magnitude： by inserting zero vector rationally, zero-current commutation in line side can be realized. The proposed theory and topology are verified by simulation results.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2006年第6期111-115,共5页
Proceedings of the CSEE
