Analysis and control strategy for a current-source based D-STATCOM towards minimum losses

被引：7

作者：

Melin, P. E. ^{[1
]}

Guzman, J. I. ^{[1
]}

Hernandez, F. A. ^{[1
]}

Baier, C. R. ^{[2
]}

Munoz, J. A. ^{[2
]}

Espinoza, J. R. ^{[3
]}

Espinosa, E. E. ^{[4
]}

机构：

[1] Univ Bio Bio, Dept Elect & Elect Engn, Concepcion, Chile

[2] Univ Talca, Dept Elect Engn, Curico, Chile

[3] Univ Concepcion, Dept Elect Engn, Concepcion, Chile

[4] Univ Catolica Santisima Concepcion, Dept Environm & Energy, Concepcion, Chile

来源：

INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2020年 / 116卷

关键词：

Power quality; STATCOM; Selective harmonic elimination; CURRENT-SOURCE CONVERTER; STATIC-POWER CONVERTERS; VOLTAGE-SOURCE; HARMONIC COMPENSATION; PERFORMANCE; SIMULATION; ALGORITHM; FILTER; DRIVE; PLLS;

D O I：

10.1016/j.ijepes.2019.105532

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 work deals with a Distribution Static Synchronous Compensator (D-STATCOM) based on a current-source converter for low and medium voltage distribution systems, specifically small and medium manufactures industries which are fined if the displacement power factor is below given limits. The D-STATCOM is analyzed using its mathematical model, showing the strong relation of the D-STATCOM power losses and its DC current level. Using the operating region of the D-STATCOM, an operating sub-region is defined such that the minimum DC current is used for a required reactive compensation, which leads to reducing the operating losses in the D-STATCOM. Also, Selective Elimination Harmonic is used to modulate the equipment to reduce the switching frequency while ensuring a desired current quality in the D-STATCOM input. As a result, a simple control strategy is proposed that uses a fixed modulation index while a phase control regulates the DC current to the lowest value required for reactive power compensation. Mathematical analysis jointly with simulated and experimental results corroborates the proposal, showing that it is possible to achieve a suitable compensation capability for improving the efficacy of the STATCOM.

引用

页数：17