This paper introduces how to measure output of the inverter by simulating quantity of it, and the method for calculating the efficiency of variable-frequency motor.
本文介绍了如何通过变频器的模拟量输出来测量变频器的输出功率，进而计算出变频电动机效率的方法。
2
The optimization theory and method combined with variablefrequency speed regulation technology is applied in this paper to realize efficiency optimization in water injection pumping stations.
利用最优化原理与方法结合变频调速技术实现注水泵站效率优化控制，以满足油田生产节能降耗的需要。
3
Method of. modeling using the intelligent optimization algorithms is discussed for AC variablefrequency speed regulation system.