Investigations in the Modeling and Control of a Medium-Voltage Hybrid Inverter System That Uses a Low-Voltage/Low-Power Rated Auxiliary Current Source Inverter

被引：8
|
作者：
Papadopoulos, Savvas [1 ]
Rashed, Mohamed [1 ]
Klumpner, Christian [1 ]
Wheeler, Patrick [1 ]
机构：
[1] Univ Nottingham, Fac Engn, Dept Elect & Elect Engn, Power Elect Machines & Control Grp, Nottingham NG7 2RD, England
来源：
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2016年 / 4卷 / 01期
关键词：
Active filters; noise cancellation; nonlinear filters; ACTIVE-FILTER; MULTILEVEL CONVERTERS; DESIGN; TRANSFORMERLESS;
D O I：
10.1109/JESTPE.2015.2488631
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：
Hybrid converters consist of a main inverter processing the bulk of the power with poor waveform performance and a fast and versatile auxiliary inverter to correct the distortion. In this paper, the main converter is a medium-voltage (MV) neutral point-clamped inverter, and the auxiliary inverter is a low-voltage and low-current rated current source inverter (CSI), with series capacitor being used to minimize the CSI voltage stress. The result is a high output current quality, which is obtained with a very low switching stress in the main converter and a very small added installed power (<4%) in the CSI. This paper expands this concept by investigating the hybridization of an MV inverter with an existing LCL filter, investigating the additional challenges related to resonances, and proposing a solution for stable operation. The experimental validation of active ripple cancellation has been provided at 3 kW.
引用
收藏
页码：126 / 140
页数：15
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