The simulation results show th at the vector control system based on LPIDBP speed estimation can improve the speed of convergen ce of the system,has high estimating precision,and has better dynamic and st atic performance.

• 仿真结果表明,基于LPIDBP神经网络的混合速度估计器的矢量控制系统收敛速度快,转速估计精度高,动静态性能好。