Back-to-Back Modular Multilevel Converter for drive applications under unbalanced grid conditions

被引：0
|
作者：
Donoso, Felipe [1 ]
Espinoza, Mauricio [2 ]
Diaz, Matias [3 ]
Letelier, Arturo [1 ]
Cardenas, Roberto [1 ]
机构：
[1] Univ Chile, Santiago, Chile
[2] Univ Costa Rica, San Jose, Costa Rica
[3] Univ Santiago Chile, Santiago, Chile
来源：
2018 20TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'18 ECCE EUROPE) | 2018年
关键词：
Adjustable speed drive; AC/AC converter; AC machine; Converter control; Multilevel onverters; CONTROL-SYSTEM; HVDC SYSTEM;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a control system for a Back-to-Back Modular Multilevel Converter based drive is proposed. The control system is able to operate either in balanced and unbalanced grid-conditions by regulating the power oscillations choosing an appropriate circulating current reference. Unity power factor operation (for balanced grid), reduced harmonic distortion, capacitor voltage balance and bidirectional power flow are feasible with the proposed methodology. Simulations and experimental results obtained with a 7.5-kW 30 power cells prototype are presented to validate the effectiveness of the proposed control system.
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页数：10
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