Adaptive multiple-master strategy for power management of distributed generators in an islanded distribution subsystem

The Journal of Engineering

Peter Crossley¹  Wei Zheng²  Yushi Hu³  Bingyin Xu⁴ 

[1] School of Electrical and Electronic Engineering , Shandong University of Technology , 266 Xincun West Road , People'School of Electrical and Electronic Engineering , The University of Manchester , Oxford Road , UK;State Grid, No.1 East Damochang Street , People's Republic of China

关键词: generation–load balance;    control tactics;    distributed generations;    isl;    ed system;    utilise full isl;    generation capacity;    extra control system;    isl;    voltage;    isl;    DGs;    load dem;    power management;    frequency;    high power quality;    power system isl;    ing;    conventional DG coordination strategies;    system transient performance;    isl;    ed power system;    multiple-master strategy;    utility grid;    distributed generators;    isl;    ed distribution subsystem;    isl;    ing events;   

DOI  :  10.1049/joe.2018.0149

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

Power management related to the application of power system islanding is investigated. In an islanded power system, without the utility grid to regulate the island voltage and frequency, distributed generations (DGs) must switch their control tactics to maintain these parameters within the permissible ranges. Generation–load balance is a vital criterion that needs to be ensured, which requires the island DGs to properly share the load demand. Conventional DG coordination strategies cannot deliver high power quality and utilise full island generation capacity at the same time. To address this issue, an adaptive multiple-master strategy is proposed. This strategy requires neither communication infrastructure nor extra control system, and thus it is immediately applicable to the current network. In addition, this strategy can improve the system transient performance and maximise the economic and environmental benefits. Through simulations conducted on an islanded system consisting of both synchronous and inverter-based DGs, the effectiveness of the proposed strategy is validated. This strategy also performs well for the islanding events initiated by permanent grid faults.

【 授权许可】

CC BY