输入不平衡下隔离型AC-DC矩阵变换器控制策略研究

doi:10.16182/j.issn1004731x.joss.19-0505

系统仿真学报 ›› 2021, Vol. 33 ›› Issue (7): 1729-1738.doi: 10.16182/j.issn1004731x.joss.19-0505

• 快报/短文 • 上一篇

输入不平衡下隔离型AC-DC矩阵变换器控制策略研究

邓文浪, 李勇, 盘宏斌

湘潭大学信息工程学院,湖南湘潭 411105

收稿日期:2019-09-07 修回日期:2020-01-16 出版日期:2021-07-18 发布日期:2021-07-20
作者简介:邓文浪(1970-),女,博士,教授,研究方向为电力电子变换器及其控制技术、矩阵变换器及其应用。E-mail：77356911@qq.com
基金资助:
国家自然科学基金(51577162)

Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance

Deng Wenlang, Li Yong, Pan Hongbin

College of Information Engineering, Xiangtan University, Xiangtan 411105, China

Received:2019-09-07 Revised:2020-01-16 Online:2021-07-18 Published:2021-07-20

摘要/Abstract

摘要： 为降低隔离型AC-DC矩阵变换器(Isolated AC-DC matrix converter,IAMC)在输入不平衡下网侧有功功率波动,以及抑制网侧LC滤波器的谐振,提出一种基于有源阻尼的无差拍直接功率控制策略。该策略利用网侧电流及其延迟分量来计算IAMC输入侧滤波器电容电压,省去了传统有源阻尼控制的高精度电压传感器,降低了硬件成本损耗,且无需进行旋转坐标变换以及锁相环,运算量较小。仿真结果表明：所提控制策略在输入电压不平衡工况下可有效抑制网侧电流谐波,降低系统无功功率直流分量,稳定系统输出的有功功率,且具有较好的动态性能。

关键词: 输入不平衡, 隔离型AC-DC矩阵变换器, 有源阻尼控制, 无差拍直接功率控制

Abstract: To reduce the active power fluctuation of the isolated AC-DC matrix converter (IAMC) under the input unbalance and to suppress the resonance of the LC filter, a deadbeat direct power control strategy based on active damping is proposed. The strategy uses the grid-side current and its delay component to calculate the IAMC input side filter capacitor voltage, which eliminates the high-precision voltage sensor of traditional active damping control, reduces the hardware cost, without the rotation coordinate transformation and phase-locked loops, so the calculation cost is small. The simulation results show that the proposed control strategy can effectively suppress the current harmonics at the grid side, reduce the reactive power DC component of the system, stabilize the active power output of the system, and has good dynamic performance under the input voltage unbalanced condition.

Key words: input unbalance, isolated AC-DC Matrix Converter, active damping control, deadbeat direct power control

中图分类号:

TM46
TP391

邓文浪, 李勇, 盘宏斌. 输入不平衡下隔离型AC-DC矩阵变换器控制策略研究[J]. 系统仿真学报, 2021, 33(7): 1729-1738.

Deng Wenlang, Li Yong, Pan Hongbin. Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance[J]. Journal of System Simulation, 2021, 33(7): 1729-1738.

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输入不平衡下隔离型AC-DC矩阵变换器控制策略研究

Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance

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