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The paper addresses the problem of fault detection in an unbalanced microgrid with distributed generators, using algorithms based on harmonic estimation: Wavelet Transform (WT), Fast Fourier Transform (FFT) and Reduced Fast Fourier Transform (RFFT). Simulations were carried out in the MATLAB/SimPowerSystems environment. Modified IEEE13 bus system with distributed generation was used. Experimental...
Electrical power demand have grown rapidly over the years which results in power system congestion, depletion of fossil fuels and increased environmental hazards. Further existing power system generations are inadequate for the exponential demand growth. Environmental risks and depleting fossil fuels created a pocket for renewable energy based distributed generations that are cleaner, and renewable...
One solution towards a resilient electric distribution system during extreme weather conditions and other natural disasters is microgrid with distribution automation. This low voltage bottom-up black start capability and feeder reconfiguration capability allow true realization of the full potentialities of distributed generation. This paper exploits the black start of a low voltage network supported...
With the rapid development and promotion of distributed generation technology, microturbine generation system (MTGS) appears extremely superior both in commercial and scientific aspects. According to the ??controllable load?? exterior characters for distributed generators under the parallel operation of microgrid, a complete mathematical model, regarding a high speed and single shaft microturbine...
This paper presents a real time simulator to verify performance of demand and supply controller in microgrid. It is based on a power flow algorithm which is called Backward Forward Sweep method. As this method needs the slack node which is defined as constant voltage source, it is difficult to solve the problem where the microgrid is islanded from the electric power network. The method proposed here...
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