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A photovoltaic (PV) system's power output is not constant and fluctuates depending on weather conditions. Fluctuating power causes frequency deviations and reduction in reliability of the isolated power utility or microgrid when large output power from several PV systems is penetrated in the utility. In this paper, to overcome these problems, a simple coordinated control method for leveling the fluctuations...
Many isolated small power systems are powered by diesel generators, which results in greater operating costs than interconnected large grids. It is therefore desirable to integrate renewable energy sources such as wind power into these small grids. However, due to the fluctuating power generation from renewable energy sources, frequency deviations of power systems become problematic. Distributed intelligent...
This paper presents an output power control methodology for wind turbine generator which can decrease frequency deviation of power system using load power estimation. Load power is estimated by a disturbance observer, then output power command for wind turbine generator is determined according to estimated load power. Additionally, the wind turbine generator can also be controlled well during wind...
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