摘要
通过分析SKJ-Ⅱ型数字随动系统中PWM装置的工作原理,建立了模型公式并推算出理论传递函数关系。根据模型公式得到了PWM装置系统化的理论传递函数,并通过实验验证了理论传递函数的正确性,并指出模型中电源电压需要考虑开关的管压降问题。对于应用PWM技术进行功率变换的控制系统的建模有理论指导意义。
By analyzing the PWM device works in the SKJ-II digital servo system,the model formula is established and the theoretical transfer function is calculated.A systematic theory of PWM device transfer function is made.The correctness of the theoretical transfer function is verified by experiment, and the problem that the supply voltage drop of the switching pipe should be considered in this model is proposed.It has theoretical significance for the modeling of the application of PWM techniques for power conversion control system.
出处
《电力电子技术》
CSCD
北大核心
2012年第4期65-68,共4页
Power Electronics
基金
国家自然科学基金(51167013)
江西省教育厅科技资助项目(GJJ09194)~~
关键词
数字随动系统
控制器
数学模型
digital servo system
controller
mathematical model
