【摘要】 针对移相全桥DC/DC变换器,设计了具有限流保护功能的控制系统,整定了PI调节器的参数,详细阐述了电压环与限流环之间的关系,以及两者之间切换工作的过程。该控制系统使用了垂直式和增大式两种限流模式,推导出两种限流模式的指令值计算方法,并分别进行了实验分析。实验证明,该控制系统很好地实现了限流功能,设计合理。更多还原

【Abstract】 A converter control system with current-limiting protected function is designed based on phase -shifted fullbridge DC/DC converter.PI controller is adopted in the voltage loop and the current-limiting loop.This paper introduces the relationship between the voltage loop and the current-limiting loop.Two current-limiting modes are adopted in the device and the calculation methods are given,and they are analyzed and verified in the experiment.The experimental results prove that the performance of the system is good.更多还原