一种用于交流伺服系统的电源变换器  

Power Converter for AC Servo System

作　　者：岳长路 赵絮 王开春[1,2] 黄玉龙 YUE Chang-lu;ZHAO Xu;WANG Kai-chun;HUANG Yu-long(Beijing Institute of Precision Mechatronics and Controls,Beijing 100076,China)

机构地区：[1]北京精密机电控制设备研究所,北京100076 [2]航天伺服驱动与传动技术实验室,北京100076

出　　处：《电力电子技术》2024年第4期130-133,共4页Power Electronics

摘　　要：为了解决因传统交流伺服系统引起的电网“污染”问题,以及增强系统的抗电磁干扰能力,因此,根据设计输入指标的要求,提出了有源功率因数校正与LLC半桥拓扑相结合的方案,并且基于PSIM仿真软件搭建了电源系统仿真平台,完成了输出1 000 W/48 V工程样机研制。试验结果表明,该设计不仅可以有效地提高输入功率因数,而且可以增加电源系统工作效率,此外,由于后级采用隔离变压器,将输入与输出隔离,因此可以减少电磁干扰对控制驱动器的影响,大大增强了交流伺服系统的可靠性。In order to solve the problem of power grid pollution caused by traditional AC servo system and enhance the anti electromagnetic interference ability of the system.Therefore,according to the requirements of the design input index,a scheme combining active power factor correction with LLC half-bridge topology is proposed.Based on the PSIM simulation software,the power system simulation platform is built,and the output 1000 W/48 V engineering prototype is developed.The test results show that the design can not only effectively improve the power factor,but also increase the eficiency of the power supply system.In addition,since the isolation transformer is used in the back stage to isolate the input and output,the influence of electromagnetic interference on the control driver can be reduced,and reliability of the AC servo system can be greatly enhanced.

关 键 词：变换器 有源功率因数校正 半桥拓扑 

分 类 号：TM46[电气工程—电器]