Micro-grid operation of inverter based distributed generation with voltage and frequency dependent loads
Author(s)Zeineldin, H. H.; Kirtley, James L., Jr.
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Distribution systems are experiencing increasing penetration of distributed generation (DG). One attractive option is to use the available DG capacity during utility outages by forming planned micro-grids. Load sharing among different DG, during micro-grid operation, could be accomplished by equipping each DG with a P-f and Q-V droop characteristic. In this paper, we analyze the impact of the loads' voltage and frequency dependence on the micro-grid's frequency and voltage deviation during a planned islanding condition. The system was modeled and analyzed using PSCAD/EMTDC. The simulation results and mathematical analysis show that the load's voltage and frequency dependence is an important factor when choosing the DG droop characteristic. The results also show that some loading conditions could lead to an unstable micro-grid operation.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Proceedings of the IEEE Power & Energy Society General Meeting, (PES '09) 2009
Institute of Electrical and Electronics Engineers (IEEE)
Zeineldin, H. H., and J.L. Kirtley. “Micro-grid Operation of Inverter Based Distributed Generation with Voltage and Frequency Dependent Loads.” Proceedings of the IEEE Power & Energy Society General Meeting, (PES '09), 2009. 1–6. © Copyright 2009 IEEE
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