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This contribution explores the possibility of improving the global efficiency of three-phase inverter-based distributed resources (DR) embedded in low-voltage (LV) distribution feeders, by the adaptation of their switching frequency (SF) to the operation point of both the converter and local loads. The core of this proposal lies on the fact that in a good number of applications, in both services and...
Decentralized control of a new harmonics distribution method for microgrid is presented in this paper. The compromise between voltage regulation at point of common coupling (PCC) and harmonics sharing is provided. The control algorithm that optimizes microgrid performance regarding these two factors is proposed and its implementation is described. The effect of small error in coupling impedance estimation...
When large penetration of the distributed generators (DGs) such as photovoltaic (PV) systems is growing up in grid system, it is important to quickly prevent islanding caused by power system fault in order to ensure electrical safety. We propose a novel active method for islanding prevention by harmonic injection synchronized with exciting current harmonics of the pole transformer in order to avoid...
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