无刷双馈电动机最优压频控制策略

摘要

无刷双馈电动机与其它电动机相比具有独特的优越性能,特别适合风机、水泵类负载的开环控制.文章以笼型无刷双馈电动机为研究对象,建立了无刷双馈电动机的数学模型,借助Matlab/Simulink仿真软件详细分析了电动机在调速过程中的最优压频控制策略.该策略可使电动机以最大功率因数和最小变频器容量稳定地运行在相应的转速上.%Compared with other motors, the brushless double-fed motor (BDFM) has its own unique advantages, especially suits for the open-loop control of loads of fans, pumps load and so on. Taking the cage brushless double-fed motor as research object, the paper established a mathematical model of the BDFM. Using Matlab/Simulink software, it analyzed the optimal voltage frequency control strategy in course of speed-regulation control in details. The strategy can make the motor run stablly in corresponding speed at the maximum power factor and the minimum converter capacity.