Modeling, Control and Experimental Investigation of a Novel DSTATCOM Based on Cascaded H-bridge Multilevel Inverter

被引：0

作者：

Xu, Lin ^{[1
]}

Han, Yang ^{[1
,2
]}

Chen, Chen ^{[1
]}

Pan, Jun-Min ^{[1
]}

Yao, Gang ^{[1
]}

Zhou, Li-Dan ^{[1
]}

Khan, M. M. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Mechatron Engn, Chengdu 610054, Peoples R China

来源：

AUTOMATIKA | 2010年 / 51卷 / 01期

关键词：

Multilevel; Cascaded H-bridge; DSTATCOM; Phase-locked loop (PLL); Voltage balancing; POWER; SCHEME;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A novel static synchronous compensator for reactive power compensation of distribution system (DSTATCOM) is proposed, based on the cascaded H-bridge multilevel inverter configuration The mathematical formulation of the multilevel DSTATCOM is presented using state-space representations. A new software phase-locked loop (SPLL) is presented for grid synchronization and the obtained phase angle of the fundamental component of the grid voltage is utilized for deriving the active and reactive power balancing equations of the multilevel DSTATCOM The proportional-resonant (PR) controller scheme is adopted for the current tracking control of the Inverter, and the average dc-link voltage is controlled using a proportional-integral (PI) controller to regulate the active power flow of the DSTATCOM. Besides, the voltage balancing (VB) control among individual H-bridges is achieved by using separate PI regulators to control the difference voltage between the individual dc-link voltage and the average voltage The validity of the proposed multilevel DSTATCOM and its control strategies is substantially confirmed by the extensive simulation results and the experimental results from the prototype system

引用

页码：41 / 54

页数：14

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