异步电机能效计算的实用方法及其应用

微特电机 ›› 2023, Vol. 51 ›› Issue (5): 32-35.

异步电机能效计算的实用方法及其应用

李九光¹, 余功成², 秦文浩¹, 张英¹, 高莉莉², 李晓松²

1.岳阳长炼机电工程技术有限公司,岳阳 414000;
2.湖南石油化工职业技术学院,岳阳 414011

收稿日期:2022-10-14 出版日期:2023-05-28 发布日期:2023-05-29

Practical Method of Energy Efficiency Calculation of Induction Motor and Its Application

LI Jiuguang¹, YU Gongcheng², QIN Wenhao¹, ZHANG Ying¹, GAO Lili², LI Xiaosong²

1. Yueyang CLPEC Electrical Engineering & Technology Co., Ltd., Yueyang 414000, China;
2. Hunan Petrochemical Vocational and Technical College, Yueyang 414011, China

Received:2022-10-14 Online:2023-05-28 Published:2023-05-29

摘要/Abstract

摘要： 应用“不变损耗”和 “可变损耗”的概念计算异步电机损耗,考虑电机负载率的不同定义,综合提炼5种算法,且选取实例对运行点及整个特性进行分析与比较。结果表明,以较容易测量的空载功率代替传统的不变损耗(铁心损耗+风摩耗)的计算方法,既实用又有较好的准确度。

关键词: 电机能效, 实用算法, 不变损耗, 负载率

Abstract: AC motor is widely used in industrial and mining enterprises, and its energy efficiency has attracted much attention. Due to limited test conditions, users need a practical algorithm that depends less on test data. In this paper, The concepts of "constant loss" and "variable loss" were applied to calculate the loss of inductionmotor. Different definitions of the load rate of the motor were taken into account. Five algorithms were comprehensively extracted, and examples were selected to analyze and compare the operating points and the whole characteristics. The results show that the calculation method is practical and accurate that in which the traditional of constant loss (core loss + wind friction) is replaced by the easily measured no-load power.

Key words: motor energy efficiency, practical algorithm, constant loss, load rate

中图分类号:

TM343

李九光, 余功成, 秦文浩, 张英, 高莉莉, 李晓松. 异步电机能效计算的实用方法及其应用[J]. 微特电机, 2023, 51(5): 32-35.

LI Jiuguang, YU Gongcheng, QIN Wenhao, ZHANG Ying, GAO Lili, LI Xiaosong. Practical Method of Energy Efficiency Calculation of Induction Motor and Its Application[J]. Small & Special Electrical Machines, 2023, 51(5): 32-35.

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