摘  要：文章对无刷直流电动机（BLDCM）作为舵系统的原动机详细地进行了分析，建立了数学模型。并对其在速度模式下的速度伺服特性和抗负载扰动进行了详细的仿真实验。仿真实验结果表明无刷直流电动机在稳态和动态情况下具有稳态精度高、动态响应快的优良性能，完全满足舵系统的要求。
关键词：无刷直流电动机；舵系统；速度伺服；仿真

Abstract: In this paper brushless DC motor(BLDCM)actuation system as original motivation was analyzed in detail,to eliminate shortcoming and inadequate of DC motor.The mathematical model of BLDCM was established.The speed servo characteristics and anti d-disturbance of BLDCM was carried out in speed mode.The simulation results show that BLDCM with steady-state high precision and fast dynamic response fully meets indictor requirements of actuation system.
Key Words: Brushless DC Motor;Actuation System;Speed Servo;Simulation