IRP理论和IEEE Std 1459-2010在变流器驱动电机能效测试中的应用比较  

Comparisons on application of IRP theory and IEEE Std 1459-2010 for converter fed motor system efficiency evaluation

作　　者：杨立敏[1,2] 李耀华[1] 王平[1] 李子欣[1] 崔冬冬[1,2] 

机构地区：[1]中国科学院电工研究所大功率电力电子与直线驱动技术研究部,北京100190 [2]中国科学院大学,北京100049

出　　处：《电工电能新技术》2016年第1期1-6,12,共7页Advanced Technology of Electrical Engineering and Energy

基　　金：中国科学院重点部署课题资助项目(KGZD-EW-302-2)

摘　　要：由于变流器输出的非正弦电压电流波形具有多样性和复杂性,传统的功率理论在变流器驱动电机能效测试中已经失去实用性。本文将两种主流的非正弦条件下的功率理论,即瞬时无功功率理论(IRP)和标准IEEE Std 1459-2010,引入变流器驱动电机的能效测试中,对比分析其实用性。首先基于数学分析,提出了一种考虑铁耗的三相异步电机仿真模型,并以此构建了一个典型的两电平PWM变流器电机驱动系统。以此系统作为算例,通过利用IRP理论、标准IEEE Std 1459-2010中提供的方法以及电机仿真算例中的内部变量,对电机的有功功率、视在功率进行了对比。结果表明,在变流器驱动电机能效测试中,这两种理论对电机效率的评估效果相同,与通过仿真算例内部变量计算得到的效率相吻合;在视在功率评估上,采用标准IEEE Std 1459-2010更合适。Converters have been widely used in motor driving systems. However,the traditional power theory does not work well at evaluating motor efficiency under the non-sinusoidal situations. So the IRP theory and IEEE Std1459-2010,which are popular in the field of describe the power phenomenon under the non-sinusoidal situations,are introduced. In this paper,a new motor simulation model with iron losses has been proposed based on mathematical analysis on motors. Then a typical PWM fed motor system has been built on the base of the proposed motor simulation model with iron losses above. The system is used as an example,with which the power phenomenon has been researched by the methods in IRP theory and IEEE Std 1459-2010. The results show that the motor efficiency can be evaluated accurately by using both IRP theory and IEEE Std 1459-2010. However,IEEE Std 1459-2010 is more suitable for evaluating apparent power then IRP theory,and IRP theory works more better then IEEE Std1459-2010 in reactive power evaluation.

关 键 词：电机能效 电机损耗仿真模型 瞬时无功功率理论 IEEE STD 1459-2010 

分 类 号：TM46[电气工程—电器]