| 基于平均电流均流法控制的逆变器系统并联技术研究 |
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| 引用本文： | 王敏,金新民.基于平均电流均流法控制的逆变器系统并联技术研究[J].电力机车与城轨车辆,2005,28(3):18-20,28. |
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| 作者姓名： | 王敏 金新民 |
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| 作者单位： | 北京交通大学电气工程学院,北京,l00044 |
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| 摘 要： | 基于平均电流均流法(ACSS)控制的逆变器并联系统由有3个控制环的逆变器模块组成,这3个控制环分别为内部电流反馈环、电压反馈环及外部均流环。引入一种扰动源代替逆变器并联时的电流不平衡因素,建立一种新的逆变器模型,实现负载均分。理论分析证明该并联系统的稳定性好,冗余性强,输出电压精度高。电路仿真结果表明该并联方案可行,具有较好的均流精度,电气性能指标优于单逆变模块。
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| 关 键 词： | 逆变器 并联 平均电流 均流 |
| 文章编号： | 1672-1187(2005)03-0018-03 |
| 修稿时间： | 2004年11月29 |
Research on parallel technology of multi-inverter system based on average-current-sharing scheme |
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| WANG Min,JIN Xin-min.Research on parallel technology of multi-inverter system based on average-current-sharing scheme[J].Electric Locomotives & Mass Transit Vehicles,2005,28(3):18-20,28. |
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| Authors: | WANG Min JIN Xin-min |
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| Abstract: | Parallel multi-inverter system with instantaneous average-curre nt-sharing scheme is composed of several inverter modules,each inverter has thre e control loops, which are the inner current feedback loop, the voltage feedback loop, and the outer current-sharing loop. By introducing a disturbance source t o represent all the sources that may cause current unbalances, a model of the system can be built to achieve the current-sharing. Theory analysis proves that the stability and redundancy of the system are strong and the precision of output voltage is improved. Simulation r esults show the feasibility of this parallel scheme and the parallel system has good current-sharing performance,being superior to single module. |
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| Keywords: | inverter parallel averaged current current-sharing |
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