Permanent magnet synchronous motor(PMSM)driving stable platform directly is often used in guided rockets to realize the decoupling control of stable platform.Due to the extended state observe(ESO)contained in the active disturbance rejection controller(ADRC),it can accurately estimate the speed of the rotated carrier and the uncertain disturbances accurately without requiring exact mathematic model of system.Based on active disturbance rejection control technique,an ADRC for single-axis stable platform was designed,and optimized the controller.The Matlab simulation and experimental verification show that the system has strong anti-interference ability and high control quality.

Under the development trend of multiple/full electrification of aircraft and integrated electromechanical management,the traditional hydraulic and mechanical actuation is gradually replaced by door actuator through electromechanical actuation.Aiming at the current situation where the cabin doors of civil aircraft are controlled separately,chaotically and scattered,a centralized control scheme for electrically actuated cabin doors is proposed.Under the centralized control scheme,how to realize the servo control of the motor,the parallel control of the hatch,and the modification of the proximity sensor sensing distance value is designed,and the simulation device of the hatch actuation system and the motor loading experiment platform are built.The control structure and motor servo control are performed with experiment verification.The results show that the proposed centralized control scheme for electrically actuated doors is feasible,and this scheme can greatly reduce the number of door cables,reduce the complexity of the door system,and improve the reliability and maintainability of the system.

针对反电动势检测法的无位置传感器无刷直流电动机在位置误差影响下性能降低的问题,研究滤波电路对电机位置误差的影响,并利用电枢反应磁动势分布图来分析电枢反应对位置误差的影响.最后,提出一种换相点自校正控制方法来实时地补偿位置误差.实验结果表明,滤波电路使得位置信号相位延迟而电枢反应使得位置信号相位超前,并证明所提出的换相点自校正控制方法的有效性.

Permanent magnet synchronous motor (PMSM) driving stable platform directly is often used in guided rockets. Due to the extended state observe (ESO) contained in the active disturbance rejection controller (ADRC), it can estimate the speed of the rotated carrier and the uncertain disturbances accurately without requiring exact mathematic model of system. An active disturbance rejection controller based on single axis stable platform is designed and optimized. The simulation results show that the system using the simplified ADRC has such characters as high robustness, high accurate and quickness.

单轴稳定平台能够有效地隔离载体的扰动,使安装在平台上的装置精确保持动态基准,以达到控制系统期望的姿态.针对稳定平台伺服系统中负载转矩和载体滚转角速度的变化,依据滑模变结构控制(SMC)理论,提出一种单轴稳定平台永磁同步电动机滑模变结构控制方法.仿真和实验通过对比经典的PID控制器和滑模变结构控制器,表明该控制方案比经典PID控制在负载转矩和载体滚转角速度的发生变化时动态控制性能提高20％、稳态控制性能提高50％,提高了系统响应的稳定性、鲁棒性和自适应性.

Permanent magnet synchronous motor driving single axis gyroscope stabilized platform could enhance its application domain, especially in speed aspect and acceleration aspect. However, the control method of direct axis current equaling zero limited motor output speed. This paper put forward a method of field weakening vector control for permanent magnet synchronous motor driving single axis gyroscope stabilized platform, which could expand motor running range. Direct axis current given signal depended on field weakening, instead of equal to zero. The simulation experiment result was shown the feasibility and effectiveness of the proposed method.

Direct torque control selected switching voltage vector according to torque hysteresis comparator output, flux hysteresis comparator output, and sector. One switching voltage vector selection approach was proposed. It used support vector regression machine to carry out direct torque control switching voltage vector selection. The selection of eight switching voltage vectors was an eight classification problem. This classification problem was changed into regression problem by support vector regression machine. The nonlinear function used for switching voltage vector selection was gained by support vector regression machine training. Asynchronous motor direct torque control simulation result shows feasibility and effectivity of proposed method.