摘要
为了实现快速锁相,通过在线修改锁相环中PI滤波器的控制参数,达到系统最优控制,提出了一种基于模糊控制技术的自适应方案。介绍了模糊PI控制器的结构和模糊规则,以及机车制动能量回馈系统中的新型锁相环的软硬件结构。仿真及实验结果表明,新型锁相环能够进行较快锁相,具有良好的应用价值。
In order to realize the rapid phase lock, and achieve the optimal control of system by modifying the control parameters of PI filter in phase lock loop （PLL） online, a adaptive scheme based on fuzzy control technology was proposed. The structure and fuzzy rules of the fuzzy PI controller were presented. The structure of software and hardware of the novel PLL in the braking energy feedback system of urban rail transit were introduced. Simulation and experimental results show that the new PLL can be phase lock quickly, and has good application value.
出处
《电源技术》
CAS
CSCD
北大核心
2014年第2期320-322,共3页
Chinese Journal of Power Sources
基金
广东省教育部产学研结合项目(2010B090400213)
关键词
锁相环
模糊PI控制
坐标变换
PLL
fuzzy PI control
coordinate transformation
