Performance of electric irrigation pumping plants using variable frequency drives

被引：14

作者：

Hanson, B

Weigand, C

Orloff, S

机构：

[1] ELECT POWER CONDITIONING INC, CORVALLIS, OR 97330 USA

[2] UNIV CALIF COOPERAT EXTENS, YREKA, CA 96097 USA

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 1996年 / 122卷 / 03期

关键词：

D O I：

10.1061/(ASCE)0733-9437(1996)122:3(179)

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The constant revolutions pei minute (RPM) of electric motors prevents adjusting the pump performance to match variable operating conditions, and thus the pump output is usually reduced or throttled with a valve in the discharge pipe. Variable frequency drives for electric motors have the potential to adjust the pump performance to match operating conditions by reducing motor and pump RPM. Field tests at five sites showed that the pump performance at the reduced RPM could reasonably match the throttled conditions at a reduced horsepower demand. However, pumping plants using a variable frequency drive should be operated at least 500-1,000 h per year to recoup costs.

引用

页码：179 / 182

页数：4