基于RMxprt换向偏转角调整PMDC性能影响研究

Study on the influence of commutation deflection angle adjustment on PMDC performance based on RMxprt

换向偏转角调整是提升PMDC性能可行方式,但对其研究比较单一,本文结合RMxprt仿真PMDC便捷特点,开展换向偏转角调整对PMDC性能影响仿真研究。首先通过研究对象实例参数在RMxprt中建立PMDC模型,再基于该模型修改换向偏转角参数获得不同偏转角度下的额定转速、能量转化效率、工作电流、齿槽转矩,归纳换向偏转角对PMDC性能影响规律,并通过测试实验验证换向偏转角对转速、工作电流的影响。仿真及测试实验结果表明:换向偏转角可调整PMDC转速及工作电流,改进PMDC能量转化效率以及降低PMDC齿槽转矩,换向偏转角调整方法较于其他优化方法具有应用灵活、性价比高的推广优势。

Commutation deflection angle adjustment is a feasible way to improve PMDC performance, but its research is relatively simple. Combined with the convenient characteristics of RMxprt simulation PMDC, this paper carries out the simulation research on the impact of commutation deflection angle adjustment on PMDC performance. Firstly, the PMDC model is established in rmxprt through the example parameters of the research object, and then the commutation deflection angle parameters are modified based on the model to obtain the rated speed, energy conversion efficiency, working current and cogging torque under different deflection angles. The influence law of commutation deflection angle on PMDC performance is summarized, and the influence of commutation deflection angle on speed and working current is verified through test experiments. The simulation and test results show that the commutation deflection angle can adjust PMDC speed and working current, improve PMDC energy conversion efficiency and reduce PMDC cogging torque. Compared with other optimization methods, the commutation deflection angle adjustment method has the advantages of flexible application and high cost performance.