Journal article
Operation and control of a hybrid microgrid containing unbalanced and nonlinear loads
Electric Power Systems Research, Vol.80(8), pp.954-965
2010
Abstract
This paper shows how the power quality can be improved in a microgrid that is supplying a nonlinear and unbalanced load. The microgrid contains a hybrid combination of inertial and converter interfaced distributed generation units where a decentralized power sharing algorithm is used to control its power management. One of the distributed generators in the microgrid is used as a power quality compensator for the unbalanced and harmonic load. The current reference generation for power quality improvement takes into account the active and reactive power to be supplied by the micro-source which is connected to the compensator. Depending on the power requirement of the nonlinear load, the proposed control scheme can change modes of operation without any external communication interfaces. The compensator can operate in two modes depending on the entire power demand of the unbalanced nonlinear load. The proposed control scheme can even compensate system unbalance caused by the single-phase micro-sources and load changes. The efficacy of the proposed power quality improvement control and method in such a microgrid is validated through extensive simulation studies using PSCAD/EMTDC software with detailed dynamic models of the micro-sources and power electronic converters.
Details
- Title
- Operation and control of a hybrid microgrid containing unbalanced and nonlinear loads
- Authors/Creators
- F. Shahnia (Author/Creator) - Queensland University of TechnologyR. Majumder (Author/Creator) - Queensland University of TechnologyA. Ghosh (Author/Creator) - Queensland University of TechnologyG. Ledwich (Author/Creator) - Queensland University of TechnologyF. Zare (Author/Creator) - Queensland University of Technology
- Publication Details
- Electric Power Systems Research, Vol.80(8), pp.954-965
- Publisher
- Elsevier B.V.
- Identifiers
- 991005544201207891
- Copyright
- © 2010 Elsevier B.V.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 4 Electrical Engineering, Electronics & Computer Science
- 4.18 Power Systems & Electric Vehicles
- 4.18.204 Smart Grid Optimization
- Web Of Science research areas
- Engineering, Electrical & Electronic
- ESI research areas
- Engineering