已经研制成了28V/100A的交流一直流电源变换器,作为美陆军电子司令部数字设备电源分系统的标准一次电源模型。该模型将可控硅LC串联谐振逆变器制成彼此间有相移的四个功率级结构形式,功率级的开关半导体器件中流过正弦电流,因此减小了开关损耗,在不正常负载期间提供了固有的电流限制,且由于整个工作频率较高,减小了输入/输出滤波。这个多级系统采用了双环控制系统,使直流输出具有精密的稳定度和良好的动态响应。 A 28V / 100A AC-DC power converter has been developed as a standard primary power model for the US Army Electronic Command digital equipment power subsystem. In this model, thyristors LC series resonant inverters are made of four power-level structure with phase shift among them. The switching current of the power semiconductor devices is sinusoidal, thus reducing the switching loss. During normal load Provides inherent current limiting and reduces input / output filtering due to the high overall operating frequency. The multi-stage system uses a dual-loop control system that provides precise DC output stability and good dynamic response.