两相坐标系下MMC环流抑制策略
MMC的相间环流具有二倍频负序性质，不会对外电路造成影响，但会增加电容电压、桥臂电流的波动程度以及系统损耗和电磁干扰，降低了MMC运行效率和使用寿命。在αβ坐标系下，将载波移相调制策略和排序算法相结合，采用比例谐振积分控制器，提出了一种无需旋转坐标变换的环流抑制策略。最后在MATLAB/Simulink中搭建了MMC-HVDC仿真模型，仿真结果表明所提策略的正确性和有效性。...
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| Published in | 电测与仪表 Vol. 51; no. 20; pp. 80 - 84 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
华东交通大学 电气与电子工程学院,南昌,330013
2014
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1390 |
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| Abstract | MMC的相间环流具有二倍频负序性质，不会对外电路造成影响，但会增加电容电压、桥臂电流的波动程度以及系统损耗和电磁干扰，降低了MMC运行效率和使用寿命。在αβ坐标系下，将载波移相调制策略和排序算法相结合，采用比例谐振积分控制器，提出了一种无需旋转坐标变换的环流抑制策略。最后在MATLAB/Simulink中搭建了MMC-HVDC仿真模型，仿真结果表明所提策略的正确性和有效性。 |
|---|---|
| AbstractList | MMC的相间环流具有二倍频负序性质，不会对外电路造成影响，但会增加电容电压、桥臂电流的波动程度以及系统损耗和电磁干扰，降低了MMC运行效率和使用寿命。在αβ坐标系下，将载波移相调制策略和排序算法相结合，采用比例谐振积分控制器，提出了一种无需旋转坐标变换的环流抑制策略。最后在MATLAB/Simulink中搭建了MMC-HVDC仿真模型，仿真结果表明所提策略的正确性和有效性。 TM464; MMC的相间环流具有二倍频负序性质，不会对外电路造成影响，但会增加电容电压、桥臂电流的波动程度以及系统损耗和电磁干扰，降低了MMC运行效率和使用寿命。在αβ坐标系下，将载波移相调制策略和排序算法相结合，采用比例谐振积分控制器，提出了一种无需旋转坐标变换的环流抑制策略。最后在MATLAB/Simulink中搭建了MMC-HVDC仿真模型，仿真结果表明所提策略的正确性和有效性。 |
| Abstract_FL | The double frequency negative circulating current among MMC three phases increase the voltage fluctuation of capacitor,arm current distortion,system losses and electro- magnetic interference,although they do not influence the outer circuit. Combining carrier phase shifted modulation strategy with sorting algorithm,a circulating current sup-pression control strategy is proposed without rotating coordinate transformation by adopting proportion resonance inte-gral controller under αβ coordinate. Finally,a MMC-HVDC simulation system is constructed in MATLAB/Simulink and the simulation results show that the proposed strategy is correctness and validity. |
| Author | 宋平岗 江浪 李云丰 |
| AuthorAffiliation | 华东交通大学电气与电子工程学院,南昌330013 |
| AuthorAffiliation_xml | – name: 华东交通大学 电气与电子工程学院,南昌,330013 |
| Author_FL | JIANG Lang LI Yun-feng SONG Ping-gang |
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| DocumentTitleAlternate | Circulating Current Suppression Control Strategy of MMC Under Static Coordinate |
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| Keywords | 均衡控制 balanced con-trol high voltage direct current 模块化多电平换流器 circulating current suppression 高压直流输电 modular multilevel converter 环流抑制 |
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| Notes | 23-1202/TH SONG Ping-gang, JIANG Lang, LI Yun-feng （College of Electrical and Electronic Engineering, East China JiaoTong University, Nanehang 3300139 China） modular multilevel converter;high voltage direct current;circulating current suppression;balanced con-trol The double frequency negative circulating current among MMC three phases increase the voltage fluctuation of capacitor,arm current distortion,system losses and electro- magnetic interference,although they do not influence the outer circuit. Combining carrier phase shifted modulation strategy with sorting algorithm,a circulating current sup-pression control strategy is proposed without rotating coordinate transformation by adopting proportion resonance inte-gral controller under αβ coordinate. Finally,a MMC-HVDC simulation system is constructed in MATLAB/Simulink and the simulation results show that the proposed strategy is correctness and validity. |
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| PublicationTitle | 电测与仪表 |
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| PublicationYear | 2014 |
| Publisher | 华东交通大学 电气与电子工程学院,南昌,330013 |
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| SubjectTerms | 均衡控制 模块化多电平换流器 环流抑制 高压直流输电 |
| Title | 两相坐标系下MMC环流抑制策略 |
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