Open AccessAdaptive multiple‐master strategy for power management of distributed generators in an islanded distribution subsystem
Author(s) -
Zheng Wei,
Crossley Peter,
Xu Bingyin,
Hu Yushi
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0149
Subject(s) - islanding , computer science , transient (computer programming) , grid , distributed generation , power (physics) , power balance , inverter , electric power system , control (management) , reliability engineering , control engineering , voltage , distributed computing , engineering , renewable energy , electrical engineering , artificial intelligence , operating system , physics , geometry , mathematics , quantum mechanics
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.