模糊自适应速度调节器在无速度传感器直接转矩控制中的应用

为解决参数固定的常规PID速度调节器易受电机参数变化的影响而很难达到高精度的控制要求这一问题，设计了一种模糊自适应PID速度调节器。该调节器能根据当前速度误差和速度误差变化率，借助模糊经验推理出常规PID控制器的比例修正系数Cp,积分修正系数ci和微分修正系数ccl，实时在线调整常规PID控制器的参数。将之应用于无速度传感器直接转矩控制系统中，提高了系统的响应速度和稳态精度。仿真结果验证了本设计的有效性。

Application of Fuzzy Self-adaptive Speed Controller in the Direct Torque Control of speedless Sensor

To solve the problem that the regular PID speed controller is effected by the change of motor parameters and thus can't meet the high accuracy requirement, this paper proposes the fuzzy self-adaptive speed controller which can adjust the proportional revision factor Cp, integral revision factor Ci and differential revision factor Cd of PID controller on line according to the speed difference and the change rate of speed difference. It is applied to the direct torque control system of speedless sensors, which improves the response and the steady state accuracy. Simulation results have verified the design effectiveness.