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For the sake of systematically investigating the propagation and magnification of harmonic currents inside large-scale distributed power plants (LDPP), firstly, the model of LDPP is built, in which the topology of multiple overhead feeders, the distributed capacitances of feeders, the stray capacitances of transformers, and the control strategy of DG units are taken into account. Secondly, the model...
Due to the intermittency of output power of the distributed generation(DG) and variability of load, the traditional single/three-phase hybrid microgrid operating in islanded mode is subjected to voltage fluctuations and three-phase power unbalances. A novel hybrid single/three-phase microgrid structure and its energy coordinating control method are proposed in this paper. The proposed structure consists...
Configuration of static var compensator (SVC) in the distributed grid with DGs is a widely adopted and effective measure to improve the power quality. As SVC itself is harmonic source, the paper proposed to add harmonic compensation link in the current inner loop of DG grid-connected inverter on the premise of not increasing hardware cost, in order to suppress the harmonic generated by local load...
Configuration of static var compensator (SVC) in the distributed grid with DGs is a widely adopted and effective measure to improve the power quality. As SVC itself is harmonic source, the paper proposed to add harmonic compensation link in the current inner loop of DG grid-connected inverter on the premise of not increasing hardware cost, in order to suppress the harmonic generated by local load...
Most micro sources need to use the inverter system to connect the grid. Because the microsources are intermittent and easily affected by the adverse weather, also the reason of getting the maximum power output, the capacity of inverter system is larger enough than need and its utilization rate is not high. Microgrid power quality is a new emerging area of research and drawing more attention. Based...
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