Islanding detection using passive reactive power imbalance method

Revinnath, Tengga Daram (2013) Islanding detection using passive reactive power imbalance method. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In this era of technology, usage of Micro-Grid at domestic areas has become a new attraction due to its several advantages. The major function of a micro-grid is to ensure a stable operation during the fault at a variety of utility grid disruption. Since the utilization of micro-grid is becoming common, performing in the correct application and operation of micro-grid is important and significant. One of the main challenges in micro-grid operation is islanding detection method. There are several methods that handle the islanding detection that each one of it has its own advantages and disadvantage. This paper presents and investigates the reactive power imbalance method for islanding detection. It is one of the passive methods used. This method was implemented in the case study because of it’s simple, effective and low cost operation. However it has the higher non-detection zone (NDZ) and slower response time compare to some active methods. The micro-grid simulation is modelled in MATLAB/Simulink program and the results of the monitoring are discussed as well. As the result, the performance of the Reactive Power Imbalance method for islanding detection state is compared with the simulation model with various load power factor. Finally, the micro-grid model capability with control algorithm is shown in order to meet the load demand.

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