Cascade multilevel static synchronous compensator configuration for wind farms

被引：14

作者：

Jayasingha, S. D. G. ^{[1
]}

Vilathgamuwa, D. M. ^{[1
]}

Madawala, U. K. ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Univ Auckland, Dept Elect & Comp Engn, Auckland 1142, New Zealand

来源：

IET POWER ELECTRONICS | 2011年 / 4卷 / 05期

关键词：

STATCOM; INVERTER;

D O I：

10.1049/iet-pel.2010.0095

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：

Modulation and control of a cascade multilevel static synchronous compensator (STATCOM) configuration to improve the quality of voltage generated by wind power systems are presented. The proposed STATCOM configuration needs only four dc-link capacitors and 24 switches to synthesise nine-level operation. In addition to that, switching losses are further reduced by splitting the voltage source inverter of the STATCOM into two units called the 'bulk inverter' and the 'conditioning inverter'. The high-power bulk inverter is operated at low frequency whereas the low-power conditioning inverter is operated at high frequency to suppress harmonics produced by the bulk inverter. Fluctuations at the point of common coupling voltage, caused by sudden wind changes, are suppressed by controlling reactive power of the STATCOM. Simulation and experimental results are presented to verify the efficacy of the proposed modulation and control techniques used in the STATCOM.

引用

页码：548 / 556

页数：9

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