文档介绍：三相感应电动机
综合保护与控制的研究
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Research prehensive Protection and Control of Asynchronous Motor
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摘要
本论文研究了三相感应电动机的综合保护、软起动控制与节能运行控制问题。以单片机为核心,将感应电动机的保护、软起动控制与节能运行控制综合为一体,既能对电动机进行可靠的保护,又能对电动机进行节能运行控制。
本文的主要内容有:
,在此基础上得出了基于检测定子电流的正序、负序和零序电流分量的电动机故障保护判据,给出了综合保护的基本原理与设计思想,对微机综合保护的实现的核心算法进行了讨论,并简单介绍了感应电动机的其他保护。
,对其工作原理进行分析,并阐述了一种以单片机为核心的软起动控制,从而得出结果。
,并研究了一种控制器,包括硬件电路及软件设计。
关键词:电动机;综合保护;软起动;节能
Abstract
The problem prehensive protection and the soft-starting and power-saving operation of asynchronous motor are studied in this the puter,prehensive protection and the soft-starting and power-saving operation of asynchronous motor are corresponding can not only protect the motor,but also control the motor.
The following is the main work of thesis:
fault current characteristics of the asynchronous motor and corresponding relations of fault reasons are analyzed in this on the detection of the positive-sequence and negative-sequence and zero-sequence current,a new criterion for asynchronous motor protection is paper presents prehensive protection principle and analyses core algorithm of realization of multi-function protection by puter.
the soft control of the its principle of it expound a soft-start concrol based on I receive the result.
this paper,the power-saving operation of asynchronous motors with step-down voltage is analyzed I research a contains the hardware circuit and the software design.
Keywords: asychronous prehensive protection;soft-start;power-saving
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摘要 I
Abstract II
1前言 1
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2三相感应电动机的综合保护 5
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