摘要
传统的状态空间平均模型不能对电压、电流纹波大的变换器或存在交流电压、电流的变换器进行建模,给有源箝位谐振直流环节逆变器的建模带来了很大的困难。深入分析了有源箝位谐振直流环节逆变器的工作原理,采用双幅控制的脉宽调制控制方案,提出了一种新的适用于有源箝位谐振直流环节逆变器的建模方法。仿真实验显示,该模型不仅具有良好的输出波形,而且控制精度高,能够实现连续脉宽调制的要求。
Modeling the active clamped resonant DC-link inverter is very difficult. It has big voltage and current ripple, and AC voltage and current as well. So the traditional state-space averaged model can not be used to model the converter. The principle of active clamped resonant DC-link inverter was analyzed in detail. A pulse width modulation （PWM） control strategy based on two-amplitude control technology was given. A new modeling method was presented. Simulation and experiment results verify that the proposed scheme realizes the continuous pulse width modulation, and ires good output performance.
出处
《机电工程》
CAS
2008年第2期77-79,103,共4页
Journal of Mechanical & Electrical Engineering
基金
浙江省自然科学基金资助项目(Y105344)
关键词
谐振直流环节逆变器
双幅控制
脉宽调制
建模
仿真
resonant DC link inverter （RDCLI）
two-amplitude control
pulse width modulation （PWM）
modeling
simulation
