数控机床大功率DC-DC转换器设计与控制  

Design and Control of High Power DC-DC Converter for CNC Machine Tools

作　　者：张淑艳[1] 张长春[2] 田纪亚[1] 王超[1] ZHANG Shu-yan;ZHANG Chang-chun;TIAN Ji-ya;WANG Chao(School of Electric Information,Changchun Guanghua University,Jilin Changchun 130033,China;School of Mechanical Engineering,Jilin University,Jilin Changchun 130033,China)

机构地区：[1]长春光华学院电气信息学院,吉林长春130033 [2]吉林大学机械工程学院,吉林长春130033

出　　处：《机械设计与制造》2021年第10期169-173,178,共6页Machinery Design & Manufacture

基　　金：吉林省教育厅“十三五”科学技术项目(JJKH20181376KJ,JJKH20171027KJ)。

摘　　要：针对数控机床行业中使用的大功率DC-DC转换器,提出一种适用于大功率应用场合的LCL型dc/dc转换器的改进设计方法。基于零无功功率和有功功率平衡条件,结合电压和电流的P-Q理论方法,设计LCL型dc/dc变换器以实现更高的电压阶跃比,并限制电容器电压。依据提出的方法设计转换器参数,并搭建仿真模型对设计方案进行验证。仿真结果显示,转换器能实现300 kV/20kV的大功率DC-DC转换,电压阶跃比高且系统稳定性较好。说明所提出设计方法可用于数控机床中大功率高阶跃比DC-DC转换器设计与控制。Aiming at the high-power DC-DC converter used in CNC machine tool industry,an improved design method of LCL type dc/dc converter suitable for high-power applications is proposed.Based on the zero reactive power and active power balanced conditions on both sides of LCL and the P-Q theory of voltage and current,a kind of dc/dc converter is designed to achieve higher voltage step ratio and to limit the capacitor voltage.The converter parameters are designed according to the proposed method,and the simulation model is built to verify the design scheme.Simulation results show that the converter can achieve 300kV/20kV high power conversion,with high voltage step ratio and good system stability.The research work show that the proposed design method can be used in the design and control of high power and high step ratio DC-DC converter in CNC machine tools.

关 键 词：DC-DC转换器 数控机床 P-Q理论 电压阶跃比 零无功功率 

分 类 号：TH16[机械工程—机械制造及自动化] TN402[电子电信—微电子学与固体电子学]