Open AccessPower requirement and control characteristics of energy storage equipment in a microgrid operating in island mode
Author(s) -
Guopeng Zhao,
Xinwei Zhou
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0428
Subject(s) - microgrid , mode (computer interface) , energy storage , power (physics) , electrical engineering , control (management) , environmental science , automotive engineering , reliability engineering , computer science , nuclear engineering , engineering , voltage , physics , operating system , quantum mechanics , artificial intelligence
When the microgrid works in island mode, the energy storage equipment needs to provide the reference voltage supply. The output power of the energy storage equipment will affect the point of common coupling (PCC) voltage. According to the single‐phase equivalent circuit, analysing the phasor diagram of voltage and current vector, considering the rating parameter of the insulated gate bipolar transistor and different kinds of load, the power requirement of the energy storage equipment that can ensure the stability of the PCC voltage is obtained. The output power of energy storage can be smaller than the load power. If an switching virtual circuit (SVC) or a static var generator (SVG) is in parallel with the energy storage equipment, the power requirement and output characteristic are analysed further when the reactive power of load is compensated by the SVC or SVG. At last, the simulation verifies the analysis results.