Abstract—The objective of this paper is to investigate relationship between voltage and nondetection zone of OUV/OUF of local islanding detection techniques of distributed generation in electric power system network. This paper shows experimental results of inverter-based DG and synchronous-based DG with parallel RLC load that causes the most difficulty in detection. The experiments have shown that, case of inverter-based DG: variation of active power associated with variation of off-grid voltage at VPCC, case of synchronous-based DG: variation of off-grid voltage at VPCC was not associate with variation of active power but variation of off-grid voltage at VPCC associated with variation of reactive power. Nondetection zone of OUV of synchronous-based DG are very possibility that Q can more than -9.6 MVAR or Q can less than 3.6 MVAR which they can affect the VPCC to outside of normal voltage range when islanding condition is happen.
Index Terms—Islanding detection, distributed generation, grid-connected.
The authors are with the Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, 50200 Thailand (e-mail: manopyin@hotmail.com, suttic@gmail.com).
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Cite:M. Yingram and S. Premrudeepreechacharn, "Investigation of Relationship between Voltage and Nondetection Zone of OUV/OUF of Local Islanding Detection Techniques," Journal of Clean Energy Technologies vol. 2, no. 4, pp. 299-304, 2014.
