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This paper first briefly introduces several kinds of typical model of electric arc furnace model and its scope of application, including the harmonic voltage source model, energy balance model and the time-varying resistance model, then build the simulation model and analysis its operating characteristics for each model in MTALAB/Simulink simulation. finally, this paper puts forward a kind of electric...
Island will not only lead a damaging to the equipment of the power system, serious when, may appear a series of problems like threatening the safety of the maintenance personnel of the power system. So the grid-connected Photovoltaic power generation system must have the function of detecting the islanding in all the time to ensure if the gird is working. The traditional AFD's detecting effects are...
The harmonic detection of active power filter is a very crucial part. This paper proposed a fast harmonic detection method based on improved iterative DFT. The main features of this method are that 1) the computational complexity of iterative DFT is much lower than that of DFT, 2) it can be used to detect only specific harmonic components, 3) the harmonic current can be directly obtained without low-pass...
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