Improved motor starting capability of three phase UPS inverters

被引：7

作者：

Ban, L ^{[1
]}

Ortmeyer, TH ^{[1
]}

机构：

[1] Clarkson Univ, Dept Elect & Comp Engn, Potsdam, NY 13699 USA

来源：

2004 11TH INTERNATIONAL CONFERENCE ON HARMONICS AND QUALITY OF POWER | 2004年

关键词：

PWM inverter; distributed generation; voltage sag; inverter derating; UPS;

D O I：

10.1109/ICHQP.2004.1409434

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

PMM inverters are increasingly being applied to general power system loads, both as uninterruptible power supplies (UPS) and in serving dedicated load from alternative energy sources. The size of motors that can be served from these inverters is limited by the inrush requirements of the motors and the limited overload capability of the inverters. This paper presents two methods to limit motor starting inrush currents within an appropriate range, in order to allow increased motor starting capability without exceeding the inverter overload limits. Both methods work by introducing voltage sags during the motor starting. Comparisons are made between the two methods, and are also compared with the existing method which has no current limitation. Both methods are also compared with acceptable sag and harmonic distortion limits. Conclusions are offered regarding the viability of these methods.

引用

页码：678 / 683

页数：6