Flexible Third Harmonic Voltage Control of Low Capacitance Cascaded H-Bridge STATCOM

被引：57
作者：
Ge, Xuefeng [1 ]
Gao, Feng [2 ]
机构：
[1] Shandong Univ, Key Lab Power Syst Intelligent Dispatch & Control, Minist Educ, Jinan 250061, Shandong, Peoples R China
[2] Shandong Univ, Sch Elect Engn, Jinan 250061, Shandong, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2018年 / 33卷 / 03期
关键词：
Cascaded H-bridge (CHB) converter; STATCOM; third harmonic control; voltage ripple; REACTIVE POWER COMPENSATION; MULTILEVEL INVERTERS; STAR CONFIGURATION; PWM; DESIGN; RIPPLE;
D O I：
10.1109/TPEL.2017.2738778
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：
The recently presented low-capacitance cascaded H-bridge (LC-CHB) STATCOM presents a compact and cost-effective STATCOM solution, which varies the averaged dc voltage according to the compensated reactive power during operation to intentionally enlarge the low-frequency dc voltage ripple and meanwhile keep the dc voltage within the allowed range. This letter further optimizes the operational performance of LC-CHB STATCOM by using a flexible third harmonic control method, which could reduce the voltage stress on semiconductors during operation and the switching losses in consequence. Experimental prototype verified the performance of the proposed control strategy.
引用
收藏
页码：1884 / 1889
页数：6
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