|本期目录/Table of Contents|

[1]周封,曹俊雷,刘健,等.电动机离散变频软起动分频及最优切换相位控制[J].电机与控制学报,2016,20(03):13-19.[doi:10． 15938 / j． emc． 2016． 03． 003]
　ZHOU Feng,CAO Jun-lei,LIU Jian,et al. Optimal switching phase and frequency splitting strategy of discrete frequency conversion soft starting control for asynchronous motor[J].,2016,20(03):13-19.[doi:10． 15938 / j． emc． 2016． 03． 003]
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电动机离散变频软起动分频及最优切换相位控制(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年03
页码:
13-19
栏目:
出版日期:
2016-03-02

文章信息/Info

Title:
 Optimal switching phase and frequency splitting strategy of discrete frequency conversion soft starting control for asynchronous motor
作者:
周封;  曹俊雷;  刘健;  王丙全;  王晨光
 ( 哈尔滨理工大学 电气与电子工程学院，黑龙江 哈尔滨 150080)
Author(s):
ZHOU Feng;  CAO Jun-lei;  LIU Jian;  WANG Bing-quan;  WANG Chen-guang
( College of Electrical and Electronic Engineering，Harbin University of Science and Technology，Harbin 150080，China)
关键词:
异步电机;  离散变频;  最优分频等级;  最优切换相位;  软起动
Keywords:
asynchronous motors;  discrete frequency conversion;  optimal discrete frequency conversion level;  optimal switching phase;  soft staring
分类号:
TM 346
DOI:
10． 15938 / j． emc． 2016． 03． 003
文献标志码:
A
摘要:
 为了提高重载时异步电动机离散变频软起动的性能，解决采用标准触发角起动中各频段切 换时产生较大的转矩脉动及转速波动等问题，进行了分频相位组合以及最优切换相位的研究。通过对离散变频相位组合及其序分量的理论分析，得到合理的分频系数。针对三相不对称频段，采用 对称分量法建立了相序分量表，求出了正序分量最大的相序组合。建立了离散变频软起动仿真模 型，计算分析了各频段的电流和转矩，确定了最佳分频等级及过渡频段。对各频段采用不同切换相 位进行仿真，得到了最优切换相位的确定规律。最终确定了一种最合理的离散分频软起控制方案， 为离散变频闭环控制策略的研究提供了理论依据，为异步电机重载软起动提供了新思路。
Abstract:
 In order to improve the performance of discrete frequency conversion soft starting of asyn-chronous motors with heavy loads and the problems were solved，such as the pulse of torque and fluctua-tion of speed when switched in every frequency band by using standard triggering angle during starting process，the frequency splitting phase and the optimal switching phase was discussed． The reasonable fre-quency splitting factor was obtained by analyzing the combination relationship of frequency splitting phase as well as its sequence components． For the unbalanced three-phase frequency bands，the form of the phase sequence components was established and the phase sequence combination with the largest positive sequence component obtained by using the symmetrical component method． The simulation model of dis-crete frequency conversion soft starting was established，the current and torque in every frequency band was calculated and analyzed，thereby the best discrete frequency conversion level and transition frequency band was determined． Each frequency bands with different switching phases was simulated and the law of optimal switching phase was obtained． Finally，the most reasonable control scheme of discrete frequency conversion soft starting was determined，which provided the theoretical basis for the research of discrete frequency conversion closed-loop control strategy and a new idea for the soft starting of asynchronous mo-tors with heavy loads．

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2014 － 03 － 27
基金项目: 黑龙江省科技计划( 攻关) 项目( GZ11A213)
作者简介: 周 封( 1970—) ，男，博士，教授，研究方向为大型电机综合物理场计算工业设备节能控制与故障监测，新能源发电监测控制等。
更新日期/Last Update: 2016-06-23