Hierarchical control of active hybrid energy storage system (HESS) in DC microgrids

Author

Peng Wang ; Jianfang Xiao ; Setyawan, Leonardy ; Chi Jin ; Choo Fook Hoong

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2014

fDate

9-11 June 2014

Firstpage

569

Lastpage

574

Abstract

Energy storages can be characterized based on energy and power densities, ramp rate, etc. Hybridization takes advantages of all energy storages to enhance system performance. Hierarchical control which is comprised of both centralized and distributed control is proposed for HESS operation in this paper. In normal state, system operates with energy management system. The central controller is used to coordinate the power sharing among various energy storages based on their characteristics and operating statuses. In case of communication failure, distributed control which operates with local information is to be activated. The bus voltage is used as indicator for system power balance to realize distributed control of system units. MATLAB/Simulink is used for the verification of the proposed methods.

Keywords

centralised control; distributed control; distributed power generation; energy storage; hierarchical systems; power distribution control; DC microgrids; HESS; MATLAB; Simulink; active hybrid energy storage system; bus voltage; centralized control; communication failure; distributed control; energy management system; hierarchical control; system power balance; Batteries; Decentralized control; Power amplifiers; Power generation; System-on-chip; Voltage control; DC-Bus Signaling (DBS); Hierarchical control; Hybrid energy storage system (HESS); Power dispatch;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2014 IEEE 9th Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4799-4316-6

Type

conf

DOI

10.1109/ICIEA.2014.6931229

Filename

6931229