Modeling and control of aggregated Super-Capacitor Energy Storage system for wind power generation

Author

Li, Xiao ; Hu, Changsheng ; Liu, Changjin ; Xu, Dehong

Author_Institution

Dept. of Electr. Eng., Zhejiang Univ.

fYear

2008

fDate

10-13 Nov. 2008

Firstpage

3370

Lastpage

3375

Abstract

Wind power fluctuations that have adverse impacts on power quality are becoming more serious as wind energy reaches higher level of penetration. This paper focuses on the control design of super-capacitor energy storage system (SCES) which serves for the whole wind farm. The control method of the aggregated SCES is proposed for smoothing medium frequency wind power fluctuations and maintaining wind farm terminal voltage. A modified SCES controller is studied including active and reactive power decoupled control, double-loop control of bidirectional buck-boost converter and super-capacitor voltage management. Design of the control loops are discussed based on the SCES small-signal model. The effectiveness of the control strategy is validated by simulation in PSCAD/EMTDC.

Keywords

control system synthesis; power convertors; power supply quality; reactive power control; supercapacitors; wind power plants; PSCAD-EMTDC; active decoupled control; bidirectional buck-boost converter; control design; double-loop control; power quality; reactive power decoupled control; smoothing medium frequency wind power fluctuations; supercapacitor energy storage system; supercapacitor voltage management; wind farm terminal voltage; wind power generation; Control design; Energy storage; Fluctuations; Power quality; Power system modeling; Smoothing methods; Voltage control; Wind energy; Wind farms; Wind power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE

Conference_Location

Orlando, FL

ISSN

1553-572X

Print_ISBN

978-1-4244-1767-4

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2008.4758501

Filename

4758501