Energy Management of a Hybrid AC–DC Micro-Grid Based on a Battery Testing System

Energies

Bo Long¹  Taek Won Jeong³  Jong Deuk Lee³  Yoo Cheol Jung² 

[1]School of Mechanical, Electronic, and Industrial Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

[2] E-Mail:

[3]Department of Software Engineering, Chonbuk National University, Jeonju 567, Korea

[4] E-Mail:

[5]Department of Electronics & Information Engineering, Chonbuk National University, Jeonju 567, Korea

[6] E-Mails:

关键词: energy recovery;    battery testing system;    micro-grid;    energy management;   

DOI  :  10.3390/en8021181

来源: mdpi

【 摘 要 】

Energy Recovery Battery Testing Systems (ERBTS) plays an important role in battery manufacture. The conventional ERBTS configuration contains a fundamental transformer, and a bidirectional Direct Current (DC)–DC and Alternating Current (AC)–DC converter. All ERBTS are connected in parallel, thus constituting a special and complicated AC micro-grid system. Aiming at addressing their low energy recovery efficiency, complex grid-connected control algorithm issues for islanded detection, and complicated power circuit topology issues, a hierarchical DC-link voltage hybrid AC–DC micro-grid that contains composite energy storing devices is proposed. Moreover, an energy management optimal scheme for the proposed scheme is put forward. The system configuration of the proposed scheme is described in detail. Compared to the conventional scheme, the proposed scheme has the merits of simplified power circuit topology, no need for phase synchronous control, and much higher energy recovery efficiency and reliability. The validity and effectiveness of the proposed technique is verified through numerous experimental results.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.