摘要
运用了状态空间平均法,推出BUCK变换器的传递函数.再通过串联校正,设计出系统的校正装置,使闭环BUCK变换器系统的稳定性有了较大的改善.最后运用Matlab建立起开环和闭环系统的仿真模型.通过对开环和闭环系统仿真结果的对比分析,可以得出校正后系统的动态性能有较大改善.整个系统符合设计要求,满足设计指标.
The transfer function of the BUCK converter is proposed by using the state - space average method. A compensator device of the system is designed by using the knowledge of the series compensation. And the stability of the closed- loop BUCK system has greatly improved. At last the simulation model of open - loop and closed - loop system is founded by using the Matlab. Comparing the results of the simulation of open - loop and closed- loop system,the conclusion can be reached that the stability of the after- compensation system has greatly improved. All this system can satisfy the demand of the design.
出处
《机械与电子》
2009年第3期78-80,共3页
Machinery & Electronics
