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闫朝阳,康鸣,宋雪微,卫炳昂,代会文.单相电流源型高频链矩阵式PET及解结耦调制[J].电源学报,2019,17(5):11-21
单相电流源型高频链矩阵式PET及解结耦调制
Single-phase Current-source High-frequency-link Matrix PET and De-recoupling Modulation
投稿时间:2018-12-30  修订日期:2019-06-14
DOI:10.13234/j.issn.2095-2805.2019.5.11
中文关键词:  单相  电流源型  高频链  矩阵  电力电子变压器  解结耦
英文关键词:single-phase  current-source  high-frequency-link  matrix  power electronic transformer  de-recoupling
基金项目:国家自然科学基金资助项目(61671403);国家重点研发计划资助项目(2016YFC0802900)
作者单位E-mail
闫朝阳 燕山大学电气工程学院, 秦皇岛 066000 yanzy@ysu.edu.cn 
康鸣 燕山大学电气工程学院, 秦皇岛 066000  
宋雪微 燕山大学电气工程学院, 秦皇岛 066000  
卫炳昂 燕山大学电气工程学院, 秦皇岛 066000  
代会文 燕山大学电气工程学院, 秦皇岛 066000  
摘要点击次数: 136
全文下载次数: 104
中文摘要:
      提出一种单相电流源型AC/AC高频链矩阵式电力电子变压器PET(power electronic transformer)拓扑,通过采用高频变压器进行磁耦合及功率传递,使用电流源型电路拓扑实现输入输出的电压变换,其变压器原边采用LC滤波器及矩阵变换器结构,而副边采用矩阵变换器及CL滤波器结构。为使矩阵变换器双向开关合理工作,提出一种前级单极倍频正弦脉宽调制SPWM(sinusoidal pulse width modulation)与后级混合脉宽调制HPWM(hybrid pulse width modulation)相结合的解结耦调制策略,对前级双向开关管进行整体式驱动,对后级双向开关管进行分立式驱动。为了拓宽电力电子变压器的变换特性,对其调制策略进行了变压、变频验证。在对调制原理和主电路工作状态分析的基础上,仿真验证了所提拓扑和调制策略的有效性及可行性。
英文摘要:
      A single-phase current-source AC/AC high-frequency-link matrix power electronic transformer(PET) topology is proposed, in which a high-frequency transformer is used for magnetic coupling and power transfer, and a current-source circuit topology is used to achieve the input-output voltage conversion. The primary-side of the transformer adopts an LC filter and a matrix converter structure, while the secondary-side adopts a matrix converter and a CL filter structure. To make the bidirectional switch tube of the matrix converter work reasonably, a de-recoupling modulation strategy is proposed by combining the pre-stage unipolar frequency-doubling and post-stage HPWM, under which the pre-stage bidirectional switch tube is driven in one piece and the post-stage bidirectional switch tube is driven in a discrete manner. To broaden the transformation characteristics of the PET, the voltage and frequency conversions under the modulation strategy are verified. Based on the analysis of the modulation principle and the working states of the main circuit, simulations verify the validity and feasibility of the proposed topology and modulation strategy.
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