| 一种考虑中点偏移的 三电平逆变器容错控制策略 |
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| 引用本文： | 毛炳奎,成庶,陈特放,向超群.一种考虑中点偏移的 三电平逆变器容错控制策略[J].铁道科学与工程学报,2019,16(2):509-517. |
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| 作者姓名： | 毛炳奎 成庶 陈特放 向超群 |
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| 作者单位： | 中南大学 信息科学与工程学院,湖南 长沙,410075;中南大学交通运输工程学院,湖南 长沙,410075 |
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| 摘 要： | 对一种具有容错能力的NPC三电平逆变器进行研究。分析传统的SVPWM容错控制算法,发现传统SVPWM容错控制算法会导致中点电位偏移。中点电位偏移会影响电压矢量,进一步导致线性调制区域减小。为了抑制中点电位偏移,提出在合适的扇区补偿参考电压幅值的策略,并给出补偿量的计算方式。最后通过实验验证该容错控制策略能够在逆变器故障后保障逆变器继续工作的同时有效控制中点电位偏移。
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| 关 键 词： | NPC三电平逆变器 容错控制 中点电位补偿 |
A fault tolerant control strategy considering mid-point offset for three-lever inverter |
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| MAO Bingkui,CHENG Shu,CHEN Tefang,XIANG Chaoqun.A fault tolerant control strategy considering mid-point offset for three-lever inverter[J].Journal of Railway Science and Engineering,2019,16(2):509-517. |
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| Authors: | MAO Bingkui CHENG Shu CHEN Tefang XIANG Chaoqun |
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| Institution: | (School of Information Science and Engineering, Central South University, Changsha 410075, China;School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China) |
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| Abstract: | MAO Bingkui;CHENG Shu;CHEN Tefang;XIANG Chaoqun(School of Information Science and Engineering, Central South University, Changsha 410075, China;School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China) |
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| Keywords: | NPC three-level inverter fault tolerant control neutral point potential compensation |
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