本文在分析无换向器电动机成应电势和输入电流之间的相位关系的基础上,建立了它的简化数学模型(传递函数)。这种模型可以采用和直流电动机动态设计同样的原理进行电流环及速度环的设计。实验表明:理论分析和实验结果是相符合的,能有满意的动态性能。 Based on the analysis of the phase relationship between the potential of the commutator motor and the input current, this paper established its simplified mathematical model (transfer function). This model can be used with DC motor dynamic design of the same principle of current loop and speed loop design. Experiments show that: the theoretical analysis and experimental results are consistent with satisfactory dynamic performance.