Open AccessSimple control strategy for inverter‐based distributed generator to enhance microgrid stability in the presence of induction motor loads
Author(s) -
Alaboudy Ali Hassan Kasem,
Zeineldin Hatem Hussein,
Kirtley Jim
Publication year - 2013
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2013.0024
Subject(s) - microgrid , induction motor , inverter , control theory (sociology) , simple (philosophy) , induction generator , generator (circuit theory) , computer science , control (management) , stability (learning theory) , control engineering , engineering , electrical engineering , power (physics) , voltage , physics , artificial intelligence , philosophy , epistemology , quantum mechanics , machine learning
Owing to the increasing penetration of decentralised generation, stable islanded microgrid operation is essential. Fault provoked islanding conditions may lead to unstable microgrid operation, particularly when direct connected induction motor (IM) loads are included. This study proposes a control strategy for inverter‐based DG to support microgrid stability. A transient control mode (TCM), based on droop design and flow management of current components is proposed to enable the microgrid to withstand transient faults and resume stable islanded operation. The microgrid model, which includes a mix of synchronous generation, inverter‐based DG and IM loads, has been simulated in Matlab. Results show that inverter control schemes supported with TCM can withstand longer fault durations. Inverter current control scheme equipped with TCM gives better stability performance for the microgrid with IM loads.