Inverter-less Static Synchronous Compensation Based on Three-level AC-AC Converter for Reactive Power and Harmonic Compensation

被引：0
|
作者：
Guo, Zhigang [1 ]
Li, Lei [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Automat, Nanjing, Jiangsu, Peoples R China
来源：
2018 IEEE INTERNATIONAL POWER ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC) | 2018年
关键词：
inverter-less static synchronous compensation; three-level AC-AC converter; even harmonic modulation; successive harmonic compensation strategy;
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：
This paper presents an inverter-less static synchronous compensation (IL-STATCOM) based on three level AC-AC converter for reactive power and harmonic compensation. Compared with traditional STATCOMs, this device is more cost-effective and reliable because it does not need large-volume electrolytic capacitors as energy storage devices. The compensation principle of the three-level AC-AC converter based on even harmonic modulation (EHM) technique is analyzed. Fourier transform is applied to study the relationship between the injected compensation current and EHM terms. The coupling problem is discovered through the analysis. Then a decoupling control strategy, which uses the method of non-adjacent even modulation and is applicable for three-phase three-wire system, is proposed to solve the coupling problem. Finally, the three-phase three-wire system structure is proposed and the closed-loop control architecture based on successive harmonic compensation strategy (SHCS) is designed. The simulation and experimental results verify the effectiveness of the IL-STATCOM for reactive power and harmonic compensation.
引用
收藏
页码：2213 / 2218
页数：6
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