Optimization and Analysis of a Hybrid Energy Storage System in a Small-Scale Standalone Microgrid for Remote Area Power Supply (RAPS)

Energies

Fengbing Li²  Kaigui Xie²  Jiangping Yang¹ 

[1] State Grid Sichuan Electric Power Company Meishan Power Supply Company, Meishan 620010, China; E-Mail:;State Key Laboratory of Power Transmission Equipment & System Security, Chongqing University, Chongqing 400044, China; E-Mail:

关键词: small-scale standalone microgrid;    HESS;    ESS effective rate;    coordinated control strategy;    cost and life;    technical and economic optimization;   

DOI  :  10.3390/en8064802

来源: mdpi

【 摘 要 】

The analysis and application of hybrid energy storage systems (HESSs) in small-scale standalone microgrids for remote area power supply (RAPS) has received extensive attention. This application mode has its own characteristics which must be considered but have not been considered in the existing research. To reflect the common satisfaction of load demands and maximize the utilization of renewable energy in a standalone microgrid, a new index named effective rate of energy storage system (ESS) is proposed. To reflect the true work state of supercapacitor ESS (SC-ESS), the second-level data of field measurements is used in calculation and analysis. To further enhance the operational performance of the HESS, a coordinated control strategy based on state cooperation is adopted. To get a more reasonable and more credible HESS optimization model, the comparison of existing models and proposed model with different considerations on cost and life is provided. In addition, a comparative analysis of technical and economic characteristics improvements is presented for different ESS application schemes in practical projects.

【 授权许可】

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