交流电动机锁相调速系统的非线性特性(英文)

Nonlinear Characteristics of the Phase-Locked Loop AC Motor Speed Regulation System

基于一种新的鉴相器模型 ,并鉴于交流调速系统中存在双时标特性 ,应用奇异摄动理论中的时标分解原理 ,对交流锁相调速系统进行了降阶处理 .在简化模型的基础上分析了系统的非线性特性 ,并推导出了系统的稳定条件和捕捉带 .

Based on a new nonlinear model of phase frequency detector, in regard to the fact that the mechanical time constant is much greater than that of electric time constant, the phase_locked regulator system (PLRS) can be reduced to lower order system through the separation of time scales based on singular perturbations concept. With this reduced order model, the stability of PLRS is analysed, and the capture range is derived.