摘要
介绍了锁相环技术在直流电机调速系统中的应用,提出了一种基于锁相环的新型频率直流电机调速系统控制电路,通过转速仪实现对电动机转子相位的锁相控制,并给出了电路参数的计算方法。锁相环技术用于直流电机的调速系统具有良好的动态性能和较高的稳态精度。
Introduction was made to the application of phase-locked loop （PLL） technique in the DC motor speed control system. A new type of frequency control circuit of DC motor speed control system based on PLL was proposed to achieve the phase-locked control of motor rotor phase through optical rotational speed instrument. The calculating method of circuit parameters was also provided. The DC motor speed control system with PLL technique is in possession of good dynamic performance and higher stable precision.
出处
《电工电气》
2011年第4期41-44,共4页
Electrotechnics Electric
关键词
锁相环技术
电机调速
鉴相器
phase-locked loop technique
motor speed regulation
phase detector
