基于PWM的直流伺服电机电感匹配计算方法*

作者：洪华杰1,2，雷亮1，杨竹青3 日期：2009-02-23/span> 浏览：4327 查看PDF文档

基于PWM的直流伺服电机电感匹配计算方法*

洪华杰1,2，雷亮1，杨竹青3
(1.中国兵器工业第205研究所，陕西 西安 710065；2.国防科技大学 三院，湖南 长沙 410073；3.75753部队，广东 广州 510000)

摘要：脉宽调制（PWM）是直流伺服电机驱动的常见方式之一，回路感值匹配是驱动设计的重要内容。以某型光电稳瞄吊仓直流伺服系统为研究对象，结合国内关于PWM驱动直流电机的设计技巧，推导得到了电流纹波的计算公式，并列出了直流伺服电机基于PWM控制时的回路电感设计准则。仿真试验验证了结果的正确性，为同类系统的设计提供了参考依据。
关键词：脉宽调制；感值匹配；纹波；稳态精度
中图分类号：TM46文献标识码：A文章编号：1001-4551(2009)02-0022-03

Inductance matching calculation methods of DC servo motor based on the PWM control
HONG Hua-jie1,2，LEI Liang1，YANG Zhu-qing3
(1.205 Institute of China Weapon Industry, Xian 710065, China;
2.3rd Institute, National University of Defense Technology, Changsha 410073, China; 3.Unit 75753，Guangzhou 51000, China)
Abstract: pulse width modulation(PWM) is one of the most popular driving modes for DC servo motors. It is an essential content to match circuit inductance in system design period. The DC servo system in a photoelectricity stabilized and aimed pod was researched. The formula of current ripple was evaluated by synthesizing some domestic design technologies about PWM driver. And the inductance design rules for DC motor drove by PWM were listed. The results have been validated by the simulation test, and it can provide the references for system design.
Key words: pulse width modulation(PWM); inductance matching; ripple; steady accuracy
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