恒定功率因数节能方法在VVVF变频调速器中的应用  

Energy-saving Method of Constant Power Factor for a VVVF Inverter

作　　者：孙向东[1] 任碧莹[1] 钟彦儒[1] 

机构地区：[1]西安理工大学

出　　处：《电气传动》2003年第2期8-10,共3页Electric Drive

摘　　要：文章简要分析了恒转矩负载在恒定输出频率下调节定子电压可以提高电机效率的原理 ,同时讨论了采用恒定功率因数节能方法时 ,保持电机节能运行条件。在模糊控制 PID方法基础上 ,实现了恒定功率因数节能控制。实验结果表明电机在轻载条件下保持适当的恒定功率因数运行时 。As for a constant torque load and constant output frequency,the principle of adjusting stator voltage to improve motor efficiency is analyzed in brief,in addition,when energy saving method of constant power factor is used,motor running conditions are discussed. Based on fuzzy control PID,energy saving method of constant power factor is achieved.The results show that keeping proper constant power factor has better energy saving effect in a light load.

关 键 词：鼠笼型异步电机 恒定功率因数 节能 VVVF变频调速器 模糊控制 

分 类 号：TM343.3[电气工程—电机]