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DC microgrid is an effective solution to integrate renewable energy sources with conventional utility grid, especially for photovoltaic generation. A DC microgrid configuration based on modular photovoltaic generation system and energy storage devices, which features good redundancy and high efficiency, is investigated in this paper. In order to optimize energy utilization, a power management scheme...
Wind farm output power fluctuations both in short-term and long-term, create adverse effects on the voltage, frequency, and transient stability of the utility grid. In this paper, integration of wind energy with long-term energy storage devices to support the long-term and short-term shortcomings is discussed. Specifically, the energy storage is used for power ramp rate control, power smoothing, and...
Since natural distribution power generation systems such as wind energy contain electric power fluctuation, flywheel energy storage (FWES) equipment for power compensation is used. Fuzzy-logic-based V/f control of the induction motor is proposed for the speed sensorless power-leveling system in this paper. Only two sensors, including one DC voltage sensor and one DC current sensor, are utilized. The...
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