| 三电平稀疏双级矩阵变换器的中点电压分段控制 |
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| 引用本文： | 李洁,王伟,钟彦儒.三电平稀疏双级矩阵变换器的中点电压分段控制[J].电机与控制学报,2011,15(2):37-41. |
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| 作者姓名： | 李洁 王伟 钟彦儒 |
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| 作者单位： | 西安理工大学自动化与信息工程学院,陕西,西安,710048 |
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| 基金项目： | 国家自然科学基金，陕西省重点学科建设专项资金资助项目 |
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| 摘 要： | 针对输出级为稀疏三电平结构的双级矩阵变换器这一新型拓扑的中点电压偏移问题,提出了通过调节冗余小矢量的相对作用时间、分段平衡中点电压的控制方法.该方法结合了对称七段式及九段式空间矢量调制技术的优点使得中点电压在任意时刻均无不平衡区域,从而使中点电压偏移问题得到了明显的改善.仿真结果验证了所提出方法的正确性和有效性.
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| 关 键 词： | 矩阵变换器 双级矩阵变换器 三电平变换器 稀疏变换器 中点电压控制 |
Neutral-point potential segmentation control strategy for indirect three-level sparse matrix converter |
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| LI Jie,WANG Wei,ZHONG Yan-ru.Neutral-point potential segmentation control strategy for indirect three-level sparse matrix converter[J].Electric Machines and Control,2011,15(2):37-41. |
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| Authors: | LI Jie WANG Wei ZHONG Yan-ru |
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| Affiliation: | (School of Automation and Information Engineering,Xi’an University of Technology,Xi′an 710048,China) |
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| Abstract: | Aiming at the neutral-point potential balancing problem in a new topology,i.e.the indirect three-level sparse matrix converter,a novel neutral-point potential segmentation control strategy adjusting the relative duty cycle of the redundant small vectors is proposed to decrease the neutral-point potential shifting of the new topology.The novel strategy combining the symmetrical 7-segment mode and the symmetrical 9-segment mode space vector PWM technology can avoid the non balancing of the neutral-point poten... |
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| Keywords: | matrix converter two-stage matrix converter three-level converter sparse converter neutral-point-potential control |
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