石油化工装置中电动机起动方式的探讨  

Analysis of Motor Start-up Mode in Petrochemical Plant

作　　者：胡维 

机构地区：[1]中国石化工程建设公司

出　　处：《变频器世界》2009年第8期77-81,共5页The World of Inverters

摘　　要：本文对石化装置中的电动机的起动方式进行了分类和探讨,着重点在各类非直接起动方式。按照低压鼠笼型电动机、低压绕线电动机、中压鼠笼式电动机、中压绕线式电动机及中压同步电动机的顺序分别介绍了相适应的间接起动方法,并比较了传统的间接起动方式与现代间接起动方式各自的特点与相互间的差异。文章还从电子电力工程学角度对一般的变频起动、晶闸管软起动及针对大容量同步电机的负载换相式变频起动的原理及大致过程做了介绍,并对起动设备的选择进行了一定程度的研究。This paper introduces and discuss the start-up mode of different types of motors in petrochemical plant, with emphasis on non-direct start-up way. This paper introduces and analysis the non-direct start-up way of Low-voltage squirrel cage motor, Low-voltage motor winding, Medium voltage induction motor and Medium voltage large-capacity synchronous motor. Comparisons were drawn to traditional and modern non-direct start- up mode here. This article also briefly showed the theory and process of general fre- quency converter start, thyristor soft-start and large-capacity synchronous motors＇ Ioad-commutated inverter start, gave some suggestions to the choice of start-up devices.

关 键 词：石化装置 传统降压起动 软起动 变频起动 

分 类 号：TM32[电气工程—电机]