A Novel Technique for In Situ Efficiency Estimation of Three-Phase IM Operating With Unbalanced Voltages

被引：22
作者：
Al-Badri, Maher [1 ]
Pillay, Pragasen [1 ,2 ]
Angers, Pierre [3 ]
机构：
[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada
[2] Univ Cape Town, Dept Elect Engn, ZA-7701 Rondebosch, South Africa
[3] Inst Rech LTEE Hydroquebec, Lab Technol Energie, Shawinigan, PQ G9N 7N5, Canada
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2016年 / 52卷 / 04期
关键词：
DC test; genetic algorithm (GA); hot temperature; IEEE Form F2-Method F1; induction motor; nameplate; negative sequence; positive sequence; sensorless speed measurement; stray-load loss (SLL); unbalance voltages; INDUCTION-MOTORS; GENETIC ALGORITHMS; THERMAL PROTECTION; TORQUE;
D O I：
10.1109/TIA.2016.2533599
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Three-phase voltages of any power supply cannot ever be identical due to many technical reasons. Unbalanced voltages severely impact the performance of induction motors. They also increase the difficulty of the process of efficiency estimation. This paper presents a novel algorithm for in situ full-load efficiency estimation of induction motors operating under unbalanced voltages. The proposed technique utilizes the genetic algorithm (GA), IEEE Form F2-Method F1 calculations, and pretested motors' data. The method requires a dc test, full-load rms voltages, currents, input power, and speed measurement. The proposed algorithm uses a sensorless speed measurement. The technique is evaluated by testing four small-and medium-sized induction motors with different voltage unbalance conditions. The results show acceptable accuracy.
引用
收藏
页码：2843 / 2855
页数：13
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