独立H桥及移相PWM在DLSS系统中的应用  

Application of Independent H Bridges and Phase Transition PWM Control to Dynamic Load Simulation System

作　　者：芦刚[1] 李声晋[1] 

机构地区：[1]西北工业大学,陕西西安710072

出　　处：《电力电子技术》2004年第1期21-22,32,共3页Power Electronics

摘　　要：针对动态负载仿真系统对响应性和力矩波动的特殊要求,设计了五相独立绕组稀土永磁无刷直流电机专用的五相独立H桥功率变换器,提出了移相PWM控制策略以提高仿真系统的响应速度,降低输出力矩波动。介绍了基于CPLD的移相PWM产生方法,进行了控制策略仿真,给出了数字控制器的实现方法和测试结果。Rapid response and low torque fluctuation are the most important requirements of dynamic load simulation system.The special REPM BLDCM and power converter with five independent H-type bridges are designed,and the phase transition PWM control strategies are proposed to improve the responsibility and reduce the torque fluctuation of the simulation system are proposed.Control method of phase transition PWM based on CPLD and the strategy simulation are introduced.Test result and the impletmention of the digital controller are given.

关 键 词：变换器 无刷直流电动机 移相 脉宽调制 仿真 

分 类 号：TM46[电气工程—电器] TM33