电网技术Issue(4)：968-975,8.DOI:10.13335/j.1000-3673.pst.2015.04.014
VSC-HVDC中直流换流器的比例积分-准谐振-重复控制策略
Proportional Integral-Quasi-Resonant-Repetitive Control Strategy for VSC of VSC-HVDC
操丰梅 1朱喆 2张效宇 1韩健 1陈建卫 1司喆 1陈俊 2许树楷2
作者信息
- 1. 北京四方继保自动化股份有限公司，北京市海淀区 100085
- 2. 南方电网科学研究院，广东省广州市 510080
- 折叠
摘要
Abstract
In order to solve the power quality deterioration of voltage source converter based high voltage DC transmission (VSC- HVDC) caused by the unbalance and distortion of AC grid, in this paper, a hybrid current control strategy combing PI, resonant and repetitive control for the d and q -axis current components is proposed. The reference positive and negative sequence currents are calculated by setting instantaneous ripples of active and reactive powers equal to zero, and then, the positive sequence current components are controlled by proportional integral (PI) controller, the negative sequence currents controlled by resonant controller and harmonics are eliminated by repetitive controller. Furthermore, the effect of non-integral ratio of sampling frequency and the frequency of controlled signal on the repetitive controller, and the improved method of estimating the actual sampling data based on linear interpolation algorithm is proposed to enhance the performance of repetitive controller. Detailed simulation results verify the accuracy and feasibility of the proposed strategy.关键词
柔性直流输电系统/不平衡/畸变/单旋转坐标系/混合控制Key words
voltage source converter based high voltage DC transmission/unbalance/distortion/single rotating frame/hybrid control分类
信息技术与安全科学引用本文复制引用
操丰梅,朱喆,张效宇,韩健,陈建卫,司喆,陈俊,许树楷..VSC-HVDC中直流换流器的比例积分-准谐振-重复控制策略[J].电网技术,2015,(4):968-975,8.
