液氧/煤油发动机用步进电机力矩加载系统设计

介绍了液氧/煤油发动机用步进电机力矩加载系统的设计,描述了以磁粉制动器为加载核心的电机力矩加载系统的结构和硬件、软件设计方案,重点描述了力矩加载系统的模糊PI控制算法,将PI控制参数进行了模糊化和解模糊处理,制定了模糊推理规则,实现了力矩加载系统PI控制参数的动态调整,提高了步进电机力矩加载系统的加载精度。实际应用证明:研发的电机力矩加载系统实现了对液氧/煤油发动机用电机的模拟加载和电机参数的测量,满足了电机的测试要求。

Design of stepper motor torque loading system for LOX/kerosene engine

The design of the torque loading system of stepper motor for liquid oxygen and kerosene engine is introduced in this paper.The structure,hardware and software design of the motor torque loading system taking magnetic powder brake as the loading core are described.The fuzzy PI control algorithm of the torque loading system is elaborated.The fuzzification and de-blurred processing of the PI control parameters are performed.The fuzzy inference rule is drawn up.The dynamical adjustment of PI control parameters for the torque loading system was achieved.The loading accuracy of the stepping motor torque loading system was improved.The practical application proves that the developed motor torque loading system can realize the simulation loading and parameter measurement of the motor used in LOX/kerosene engine and meet the testing requirements of the motor.