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浙江大学学报(工学版)
浙江大学学报(工学版)  2023, Vol. 57 Issue (1): 209-218    DOI: 10.3785/j.issn.1008-973X.2023.01.021
电气工程     
基于特定谐波消除的矩阵变换器性能优化方法
许宇翔1(),王培良2,*(),蔡志端1,雷能玮1,蒋永峰2
1. 湖州学院 理工学院，浙江 湖州 313000
2. 湖州师范学院 工学院，浙江 湖州 313000
Performance optimization of matrix converter based on specific harmonic elimination
Yu-xiang XU1(),Pei-liang WANG2,*(),Zhi-duan CAI1,Neng-wei LEI1,Yong-feng JIANG2
1. School of Science and Engineering, Huzhou College, Huzhou 313000, China
2. School of Engineering, Huzhou University, Huzhou 313000, China
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摘要：

针对矩阵变换器输入LC滤波器容易引起输入电流谐振的问题，选择输入侧谐振点附近的特定谐波作为抑制对象，提出基于特定谐波消除的输入滤波器参数优化与谐振抑制方法，以提升输入性能. 分析输入LC滤波器及常规谐振抑制方法的工作原理，采用多个约束条件对滤波参数进行最优设计，以谐振点附近特定谐波的抑制效果作为阻尼电阻的选择依据，给出具体的优化设计步骤. 将特定谐波消除的思想引入主动谐振抑制方法中，提出采用陷波滤波器采集滤波电容中特定谐波量反馈到控制回路的策略. 搭建基于Matlab/Simulink的仿真模型，仿真实验表明，利用所提的输入滤波器参数优化方法和主动谐振抑制方法，使得输入电流总谐波畸变率分别下降了98.5%和99.3%. 抑制处理后的系统具有良好的稳定性.
关键词： 特定谐波;  矩阵变换器;  参数优化;  谐振抑制;  陷波滤波器    
Abstract:

The specific harmonic near the resonance point of input side was selected as the suppression object aiming at the problem that input LC filter of matrix converter was easy to cause input current resonance. A method of input filter parameter optimization and resonance suppression based on specific harmonic elimination was proposed to improve input performance. The working principle of input LC filter and conventional resonance suppression method was analyzed. Multiple constraints were used to optimize the design of filter parameters. The damping resistance was selected based on the suppression effect of specific harmonics near the resonance point, and the specific optimization design steps were given. The idea of specific harmonic elimination was introduced into the active resonance suppression method, and the strategy of using notch filter to collect the specific harmonic quantity in the filter capacitor and feed it back to the control loop was proposed. The simulation model based on Matlab/Simulink software was constructed. The simulation results showed that the total harmonic distortion of input current was reduced by 98.5% and 99.3% respectively by using the proposed input filter parameter optimization method and active resonance suppression method. The system has good stability after suppression processing.
Key words: specific harmonic    matrix converter    parameter optimization    resonance suppression    notch filter
收稿日期: 2021-08-14 出版日期: 2023-01-17
CLC:  TM 46  
基金资助: 国家自然科学基金资助项目（61573137）；浙江省自然科学基金资助项目（LY19F030002）；浙江省文化和旅游厅科研与创作项目资助项目（2021KYY066）；浙江省建设厅建设科研资助项目（2021K218）；湖州市公益性应用研究资助项目（2021GZ15）；湖州学院校级科研资助项目（2021HXKJ03）
通讯作者: 王培良     E-mail: keyan_xyx@163.com;wpl@zjhu.edu.cn
作者简介: 许宇翔（1981—），男，副教授，博士，从事新型变换器及控制技术的研究. orcid.org/0000-0002-8141-6213. E-mail： keyan_xyx@163.com
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引用本文:

许宇翔,王培良,蔡志端,雷能玮,蒋永峰. 基于特定谐波消除的矩阵变换器性能优化方法[J]. 浙江大学学报(工学版), 2023, 57(1): 209-218.

Yu-xiang XU,Pei-liang WANG,Zhi-duan CAI,Neng-wei LEI,Yong-feng JIANG. Performance optimization of matrix converter based on specific harmonic elimination. Journal of ZheJiang University (Engineering Science), 2023, 57(1): 209-218.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2023.01.021    或    https://www.zjujournals.com/eng/CN/Y2023/V57/I1/209

图 1  三相-三相矩阵变换器拓扑图
图 2  矩阵变换器输入侧的等效电路
图 3  被动阻尼法下的输入侧等效电路图
参数 数值
输入电压幅值Em /V $110\sqrt 2 $
输入电压频率fi /Hz 50
滤波电感Lf /mH 1.5
滤波电感等效电阻Rf /Ω 0.075
滤波电容Cf /μF 18.8
输出电流设定值Io* /A 3.5/6.5
输出频率fo /Hz 70
负载电感L /mH 7.5
负载电阻R /Ω 20
开关频率fs /kHz 10
表 1  矩阵变换器的仿真参数
Io*/A Rd/Ω ηi / %
i = 13 i = 17 i = 19 i = 23 i = 25
3.5 10 0.31 0.22 0.03 0.12 0.07
3.5 15 0.49 0.10 0.28 0.13 0.06
3.5 33 0.35 0.19 0.65 0.26 0.07
6.5 10 0.09 0.03 0.05 0.06 0.03
6.5 15 0.10 0.06 0.04 0.05 0.03
6.5 33 0.10 0.15 0.28 0.26 0.10
表 2  不同阻尼电阻下输入电流中谐振点附近谐波含量
图 4  特定谐波提取模块框图
图 5  基于特定谐波消除法的双闭环控制策略框图
图 6  无阻尼方法下的静态仿真结果
图 7  不同阻尼电阻条件下输入的静态仿真结果
图 8  输入与输出的动态仿真结果(Rd= 33 Ω)
图 9  特定谐波消除法的动态仿真结果
图 10  不同方法下输入三相电流的瞬态仿真结果
图 11  不同方法下输入电流ia的仿真分析结果(Io*= 3.5 A)
Io*/A 谐振抑制方法 ηi /%
i = 13 i = 17 i = 19 i = 23 i = 25
3.5 方法1 0.35 0.19 0.65 0.26 0.07
3.5 方法2 0.08 0.31 0.59 0.25 0.11
6.5 方法1 0.10 0.15 0.28 0.08 0.10
6.5 方法2 0.18 0.16 0.33 0.12 0.05
表 3  不同方法下输入电流中主要谐波含量
图 12  不同方法下输出相电压uu的仿真结果
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