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Reactive power compensation for solving voltage problem in PV farm based upon IEC 61850 is presented in this paper in order to control voltage within acceptable range. The Volt/VAR control is used in solar inverter of PV farm to improve power quality and also reduce the disconnection of solar inverter caused by overvoltage. So, the owner of PV farm will get more opportunity to sell solar electricity...
This proposed paper introduces the application of the inverter air conditioner by using the back to back converter to provide the reactive power during the steady state operation. This technique is used for improving the power factor of the smart home system or to provide the reactive power in the appropriate situation in both of constant reactive power supply and the maximum reactive power supply...
Active power control of a battery energy storage system (BESS) in ac microgrids is presented in this paper. PI controller design is also proposed. The simulation model using PSIM 9.0 is used to validate the designed controller. Actual data collected from data acquisition system in ac microgrids is used to validate the designed controller including photovoltaic (PV) generation profile, wind generation...
Hierarchical ac microgrid control strategies are presented in this paper. All operating modes of ac microgrid are also discussed and ranked. There are two operating mode in an ac microgrid: grid-connected mode and islanding mode. Grid-connected mode is operated under utility grid connected with the ac microgrid whereas islanding mode is operated without the utility grid. Normally, energy conversion...
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