| 三相四桥臂逆变器控制策略研究 |
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| 引用本文： | 陆学峰,孙帆,马文涛,王金梅.三相四桥臂逆变器控制策略研究[J].电测与仪表,2020,57(12):32-37. |
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| 作者姓名： | 陆学峰 孙帆 马文涛 王金梅 |
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| 作者单位： | 银川东方气力运输设备有限公司,中国电力工程顾问集团西北电力设计院有限公司,宁夏大学 物理与电子电气工程学院,宁夏大学 物理与电子电气工程学院 |
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| 基金项目： | 宁夏自然科学基金（2019AAC03027） |
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| 摘 要： | 针对传统三相三桥臂逆变器带动不平衡负载时输出交流电压对称性差的问题,研究分析三相四桥臂逆变器控制策略,前三桥臂采用输出电压正、负序控制策略,第四桥臂利用中性电流跟踪负载电流的负和来进行单独控制,可有效提高三相四桥臂逆变器的通用性,降低其控制难度,搭建Matlab仿真模型,验证了控制策略的合理可行性,实现了带动不平衡负载的能力。
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| 关 键 词： | 三相四桥臂逆变器 不平衡负载 控制策略 仿真模型 |
| 收稿时间： | 2019/12/13 0:00:00 |
| 修稿时间： | 2020/1/4 0:00:00 |
Research on control strategy of three-phase four-leg inverter |
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| Lu Xuefen,Sun Fan,Ma Wentao and Wang Jinmei.Research on control strategy of three-phase four-leg inverter[J].Electrical Measurement & Instrumentation,2020,57(12):32-37. |
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| Authors: | Lu Xuefen Sun Fan Ma Wentao and Wang Jinmei |
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| Affiliation: | Yinchuan dongfang pneumatic transportation equipment co. LTD,China power engineering consulting group northwest power design institute co. LTD,School of physics and electronic and electrical engineering,Ningxia University,School of physics and electronic and electrical engineering,Ningxia University |
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| Abstract: | Aiming at the problem of poor symmetry of output AC voltage when traditional three-phase three-leg inverters drive unbalanced loads, the control strategy of three-phase four-leg inverters is studied and analyzed. The first three legs adopt positive and negative sequence control strategy of output voltage, and the fourth legs use neutral current to track the negative sum of load current to control separately, which can effectively improve the universality of three-phase four-leg inverter and reduce its control difficulty. The simulation model of MATLAB is built to verify the rationality and feasibility of the control strategy and realize the ability to drive unbalanced load. |
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| Keywords: | Three-phase Four-leg Inverter Unbalanced load Control strategy Simulation model |
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