农村变电站无功优化的控制策略

TM75; 农网改造以来农村变电站的无功电源合理补偿一直是被关注的热门课题.结合当前农村配电网无功潮流现状,提出变电站二次侧采样折合到一次侧功率因数,由二次侧控制电容器投切方式.基于主变压器二次侧功率因数和无功缺额,同时考虑主变的有功、无功损耗的基础上,采用最优补偿容量的方法在二次侧动态补偿,实现了最大负荷时主变压器一次侧功率因数达到0.95以上的考核标准,研究对农村配网无功电源的充分利用具有现实意义....

Full description

Saved in:
Bibliographic Details
Published in农业工程学报 Vol. 29; no. 1; pp. 167 - 170
Main Author 朴在林 王慧
Format Journal Article
LanguageChinese
Published 沈阳农业大学信息与电气工程学院,沈阳 110866 2013
Subjects
农村地区
功率因数
发电
变电站
控制策略
无功优化
电源电路
电源电路
reactive power optimization
control strategy
power supply circuits
rural area
power factor
发电
控制策略
无功优化
功率因数
变电站
substation
农村地区
power generation
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2013.z1.026

Cover

More Information
Summary:TM75; 农网改造以来农村变电站的无功电源合理补偿一直是被关注的热门课题.结合当前农村配电网无功潮流现状,提出变电站二次侧采样折合到一次侧功率因数,由二次侧控制电容器投切方式.基于主变压器二次侧功率因数和无功缺额,同时考虑主变的有功、无功损耗的基础上,采用最优补偿容量的方法在二次侧动态补偿,实现了最大负荷时主变压器一次侧功率因数达到0.95以上的考核标准,研究对农村配网无功电源的充分利用具有现实意义.
Bibliography:Reasonable reactive power sources compensation of rural substations has been becoming a hot issue since Chinese rural electric network alteration. The principal reactive power compensation mode of rural substations is still using fixed compensation capacitor to control voltage and reactive power at present in China. This compensation mode has some problems such as capacity adjustment requires manual intervention under power outage, the phenomenon of over and under compensation may always happen, the rate of putting into operation of reactive power compensation is relatively low, and so on. At the same time, there is no sampling function at the primary side of the main transformer because of the special devices in rural substations. In order to realize the objectives that the power factor is not less than 0.95 at primary side and not less than 0.9 at secondary side at the highest load, in this paper, some optimal reactive power control strategies for rural substation were proposed. In accordance with the react
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2013.z1.026