本文已被：浏览 2600次 下载 738次
投稿时间：2018-03-08
投稿时间：2018-03-08
中文摘要: 二阶广义积分器（SOGI）和级联延迟信号消除（DSC）都可用于正负序分量分离，但都有各自的缺点。为了从不平衡电网中提取电网的正序和负序基波分量，提出了消除高次谐波的SOGI和消除特定频率的DSC消谐策略。仿真结果表明，无论是在电网电压失真，还是发生对称故障和不对称故障的情况下，该方法都可以快速、准确地分离电网的正负序基波分量，并且还可用于不平衡脉冲宽度调制整流器的控制。
中文关键词: 级联延迟信号消除 二阶广义积分 正负序分量 不平衡脉冲宽度调制整流器
Abstract:The second-order generalized integrator(SOGI) and cascade delayed signal cancellation(DSC) are used respectively in the separation of positive and negative component.But they have their own disadvantages.In order to extract grid's positive and negative sequence fundamental component from unbalanced power system,the strategy of second-order generalized integrator eliminating higher harmonic and cascade delayed signal cancellation eliminating the specific frequency harmonic is put forward.The simulation results show that it can separate the positive and negative sequence fundamental components quickly and accurately in the case of grid voltage distortion,symmetrical fault and asymmetric fault,and it can be applied to the control of unbalanced pulse width modulation rectifier.
keywords: cascade delayed signal cancellation second-order generalized integrator positive and negative component unbalanced pulse width modudation rectifier
文章编号：20184011 中图分类号： 文献标志码：
基金项目:国家自然科学基金（61573239）；上海市自然科学基金（15ZR1418600）。
| 作者 | 单位 | |
| 吴军 | 无锡市广盈电力设计有限公司, 江苏 无锡 214171 | |
| 程尹曼 | 上海电力公司市北供电分公司, 上海 200041 | chengyinman@hotmail.com |
| 程启明 | 上海电力学院, 上海 200090 | |
| 薛阳 | 上海电力学院, 上海 200090 | |
| 孙伟莎 | 上海电力学院, 上海 200090 |
引用文本：
吴军,程尹曼,程启明,等.基于SOGI和级联DSC的正负序分量分离及其在不平衡PWM整流器中的应用[J].上海电力大学学报,2018,34(4):356-360.
WU Jun,CHENG Yinman,CHENG Qiming,et al.Separation of Positive and Negative Sequence Component Based on SOGI and Cascade DSC and Its Application in Unbalanced PWM Rectifier[J].Journal of Shanghai University of Electric Power,2018,34(4):356-360.
吴军,程尹曼,程启明,等.基于SOGI和级联DSC的正负序分量分离及其在不平衡PWM整流器中的应用[J].上海电力大学学报,2018,34(4):356-360.
WU Jun,CHENG Yinman,CHENG Qiming,et al.Separation of Positive and Negative Sequence Component Based on SOGI and Cascade DSC and Its Application in Unbalanced PWM Rectifier[J].Journal of Shanghai University of Electric Power,2018,34(4):356-360.