| 基于DSOGI的不平衡负载补偿策略研究 |
| |
| 引用本文： | 黄倩,袁旭峰,陈明洋,邵振,谈竹奎,徐玉韬.基于DSOGI的不平衡负载补偿策略研究[J].电测与仪表,2021,58(3):126-130. |
| |
| 作者姓名： | 黄倩 袁旭峰 陈明洋 邵振 谈竹奎 徐玉韬 |
| |
| 作者单位： | 贵州大学电气工程学院,贵阳550025;贵州大学电气工程学院,贵阳550025;贵州电网有限公司电力科学研究院,贵阳550002;贵州电网有限公司电力科学研究院,贵阳550002 |
| |
| 基金项目： | 国家自然科学基金资助项目;中国南方电网有限责任公司重点科技项目 |
| |
| 摘 要： | 为了补偿微电网孤岛运行中不平衡负载导致的三相不平衡电流,文章在分析了三相不平衡电流特性的基础上,提出了一种基于双二阶广义积分器(DSOGI)的不平衡电流补偿策略。分析了不平衡电流正负序分量的分离原理以及二阶广义积分(SOGI)的特性,提出基于DSOGI的基波正序电流检测方法;基于该方法提出补偿策略,对三相不对称电流进行补偿。在PSCAD/EMTDC中进行仿真验证,结果证明该补偿策略对三相负载不平衡具有较好的补偿效果。
|
| 关 键 词： | 不平衡负载 双二阶广义积分器 正序电流检测 补偿 PSCAD |
| 收稿时间： | 2019/7/23 0:00:00 |
| 修稿时间： | 2019/7/23 0:00:00 |
Research on compensation strategy of unbalanced load based on DSOGI |
| |
| huangqian,XuanXufeng,chenmingyang,shaozhen,tanzhukui and xuyutao.Research on compensation strategy of unbalanced load based on DSOGI[J].Electrical Measurement & Instrumentation,2021,58(3):126-130. |
| |
| Authors: | huangqian XuanXufeng chenmingyang shaozhen tanzhukui and xuyutao |
| |
| Affiliation: | (School of Electrical Engineering,Guizhou University,Guiyang 550025,China;Electric Power Research Institute of Guizhou Power Grid Company,Guiyang 550002,China) |
| |
| Abstract: | In order to compensate the three-phase unbalanced current caused by the unbalanced load in the operation of micro-grid islands,based on the analysis of the three-phase unbalanced current characteristics,an unbalanced current compensation strategy based on the double second-order generalized integrator(DSOGI)is proposed in this paper.Firstly,the separation principle of positive and negative sequence components of the unbalanced current is analyzed.The characteristics of second order generalized integral(SOGI)is studied as well.It brings about a fundamental wave positive sequence current detection method based on DSOGI.Secondly,based on this proposition,a compensation strategy provides the support for three-phase asymmetric current.Finally,simulation verification is carried out in PSCAD/EMTDC.The result shows that the compensation strategy has a good effect on the imbalance of the three-phase load. |
| |
| Keywords: | unbalanced load DSOGI positive sequence current detection compensation PSCAD |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电测与仪表》浏览原始摘要信息 |
|
点击此处可从《电测与仪表》下载全文 |
|
