改进效率控制推进电机的优化分析

Optimization analysis of propulsion motor control efficiency

[目的]为了加强对推进电机的控制效果,在实际控制过程中减少能量的损耗,[方法]在传统的推进电机等值电路上,增加铁损电流分量,通过定义引入功率匹配比,寻找电机在给定转速下最高的运行效率,并探讨此功率匹配比对应的磁通;在原有的电机矢量控制中加入效率优化控制模块,以起到电机效率优化、船舶运行节能的效果。[结果]MATLAB/Simulink仿真测试结果显示,加入效率优化控制模块的方法基本适用于各种工况,改进后的电机模型的运行效率明显高于传统电机模型,并且动态性能良好。[结论]工程上可以借鉴该电机效率优化控制方法,以达到节能的效果。

[Objectives] This paper aims to strengthen the control effect of propulsion motors and decrease the energy used during actual control procedures. [Methods] Based on the traditional propulsion motor equivalence circuit, we increase the iron loss current component, introduce the definition of power matching ratio, calculate the highest efficiency of a motor at a given speed and discuss the flux corresponding to the power matching ratio with the highest efficiency. In the original motor vector efficiency optimization control module, an efficiency optimization control module is added so as to achieve motor efficiency optimization and energy conservation. [Results] MATLAB/Simulink simulation data shows that the efficiency optimization control method is suitable for most conditions. The operation efficiency of the improved motor model is significantly higher than that of the original motor model, and its dynamic performance is good. [Conclusions] Our motor efficiency optimization control method can be applied in engineering to achieve energy conservation.