Hybrid power control of cascaded STATCOM/BESS for wind farm integration

Author

Lirong Zhang ; Yi Wang ; Heming Li ; Pin Sun

Author_Institution

State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Baoding, China

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

5288

Lastpage

5293

Abstract

Static synchronous compensator combined with battery energy storage system-STATCOM/BESS, can regulate four-quadrant active and reactive power, which is an ideal scheme to solve problems of wind farm integration. Multilevel converter is the key technology for STATCOM/BESS. The advantages of cascaded multilevel converter are analyzed and the structure of cascaded STATCOM/BESS is described. Hybrid power control strategy is proposed to compensate active and reactive power of wind farm comprehensively. The reference current of STATCOM/BESS is determined according to the requirements of active power smoothness and voltage control. The control strategy can coordinate charge or discharge of batteries with reactive power compensation of STATCOM, and balance the batteries capacity of H-bridges. The proposed control strategy is validated by simulation on the wind power system using cascaded STATCOM/BESS as the compensation device. Simulation results show that the cascaded STATCOM/BESS can effectively improve the characteristics of wind farm integration and provide dynamic support to the grid.

Keywords

battery storage plants; power control; power convertors; power generation control; reactive power control; secondary cells; static VAr compensators; voltage control; wind power plants; H-bridge battery capacity; active power smoothness; battery charge-discharge; battery energy storage system; cascaded STATCOM-BESS; cascaded multilevel converter; four-quadrant active power regulation; four-quadrant reactive power regulation; hybrid power control strategy; reactive power compensation; reference current; static synchronous compensator; voltage control; wind farm integration; wind power system; Automatic voltage control; Batteries; Hybrid power systems; Reactive power; System-on-chip; Wind farms; battery energy storage system; hybrid power control; multilevel converter; static synchronous compensator; wind farms;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699995

Filename

6699995