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本文提出了重构直流调速系统常值未知外扰和电动机转速的二种全阶观测器。它包括采用和不采用测速发电机二种方案,用以重构转速n扰动量M_f。调速系统采用线性二次型指标状态反馈(LQSF),它与重构信号组成复合控制系统,补偿了负载扰动,降低了动态速降,实现了无超调和无静差。实验表明,这二种观测器方案在工业上有应用价值。
In this paper, two kinds of full-order observers are proposed to reconstruct the unknown external disturbances and the motor speed of DC speed governing system. It consists of two schemes, with and without tachometer, to reconstruct velocity perturbation M_f. The speed regulation system adopts the linear quadratic index state feedback (LQSF), which composes the complex control system with the reconstructed signal to compensate the load disturbance and reduce the dynamic speed drop, realizing no overshoot and no static error. Experiments show that these two kinds of observer programs have industrial application value.