感应电机电源软投入相关理论及节能控制新技术分析

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4、veenergysavingrate15imProvedgreatly.Keywords:EnergysavingcontrolofintermittentPowersuPPly，Rapidsoftre一switehing，As卿lmetriealtransient，Analyticalmethod，SPaeeveetor川日录目录摘要Abstract第一章绪论·······························································……11.1课题背景与研究意义··································

5、··……11.1.1抽油机电动机负载特性与适合的节能途径分析···……11.1.2几种节能途径的适用性与综合应用探讨············……21.1.3断续供电节能控制关键技术及问题的提出·········……31.2感应电机电源软投入相关理论和控制方法研究综述……41.2.1感应电机重投入过渡过程以及软起动技术研究现状……41.2.2软投入过程中不对称瞬态的研究方法综述·········……51.2.3电机瞬态过程解析研究综述························……61.3本课题目前的研究成果······························……81.4

6、本文研究的主要内容····································……8第二章周期性变工况负载电动机断续供电节能控制方法·········……102.1典型抽油机负荷模型和电动机能耗分析············……102.2断续供电节能机理和控制模式·····················……112.3断续供电控制中冲击电流分析·····················……142.4感应电机电源快速软投入方法与控制策略分析······……巧2.4.1基于晶闸管的快速软投入主电路和控制策略···············……152.4.2快速软投入触发角序列的

7、改进及控制效果··················……172.4.3不对称与对称交替过程中定子瞬态电流的影响因素······……182.5小结······················································……19第三章感应电机电源快速软投入过程瞬态模型与解析方法……203.1对初始瞬态电流进行解析的必要性及其理论难点······……203.2叨O与空间向量坐标系下不对称瞬态与对称瞬态基本模型…213.2.1两相与三相交替的