| 引用本文: | 程启明,张昕,程尹曼,赖宇生,沈章平.基于分离源的高增益矩阵变换器特性分析[J].电力自动化设备,2024,44(4):67-73 |
| CHENG Qiming,ZHANG Xin,CHENG Yinman,LAI Yusheng,SHEN Zhangping.Characteristic analysis of high gain matrix converter based on split source[J].Electric Power Automation Equipment,2024,44(4):67-73 |
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| 摘要: |
| 针对矩阵变换器(MC)存在的电压传输比限制以及现有升压型MC结构元件多、调制复杂的问题，提出了一种新型的分离源型矩阵变换器(SS-MC)。该结构采用电感、电容和3个二极管替代了双级MC中间的直流链路部件，从而构成分离源升压网络，避免了配置额外的直通占空比。对SS-MC的拓扑结构和分离源网络升压的工作原理进行了分析，阐述了其采用的空间矢量脉宽调制(SVPWM)策略，并针对SVPWM的缺点提出了基于充电预测的模型预测控制(CPB-MPC)策略。仿真和实验结果表明：所提出的SS-MC结构使用常规的SVPWM即可达到较高的电压传输比，但无源元件会存在较大的纹波；使用CPB-MPC策略可以有效抑制纹波，提高MC的输出电能质量。 |
| 关键词: 矩阵变换器 电压传输比 分离源 空间矢量脉宽调制 模型预测控制 |
| DOI：10.16081/j.epae.202307006 |
| 分类号:TM46 |
| 基金项目:国家自然科学基金资助项目(61905139)；上海市电站自动化技术重点实验室资助项目(13DZ2273800) |
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| Characteristic analysis of high gain matrix converter based on split source |
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CHENG Qiming1, ZHANG Xin1, CHENG Yinman2, LAI Yusheng1, SHEN Zhangping1
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1.College of Automation Engineering, Shanghai University of Electric Power, Shanghai 200090, China;2.North Power Supply Branch, State Grid Shanghai Electric Power Company, Shanghai 200041, China
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| Abstract: |
| A new type of split source-matrix converter(SS-MC) is proposed to address the voltage transfer ratio(VTR) limitations and the complexity of existing boost-type matrix converter(MC) structures due to the use of multiple components and complex modulation. The structure uses inductors, capacitors and three diodes to replace the DC link components in the two-stage MC, thereby forming a split source network that eliminates the need for additional direct-pass duty cycle. The topology and operation principles of the SS-MC are analyzed, and the space vector pulse width modulation(SVPWM) strategy is described, with the proposed charging prediction-based model predictive control(CPB-MPC) strategy to overcome the drawbacks of SVPWM strategy. Simulative and experimental results show that the proposed SS-MC structure can achieve a high VTR using conventional SVPWM, but the passive components exist large ripples. The use of the CPB-MPC strategy can effectively suppress the ripples and improve the output power quality of MC. |
| Key words: matrix converter voltage transfer ratio split source space vector pulse width modulation model predictive control |
