PROJECT TITLE :
A Rotating Speed Controller Design Method for Power Leveling by Means of Inertia Energy in Wind Power Systems
Power fluctuation caused by wind speed variations might be harmful for the soundness of the ability system moreover as the reliability of the wind power converter, since it might induce thermal excursions in the solder joints of the power modules. Using the wind turbine rotor inertia energy for power leveling has been studied before, but no quantified analysis or generic style technique are found. In this paper, the transfer functions from the wind speed to electrical power, electromagnetic torque, and rotating speed are designed based mostly on that the rotating speed controller is intended in the frequency domain for power leveling. Moreover, the impact of alternative parameters on power leveling, together with the time constant of maximum power point tracking (MPPT) and the rotor inertia, also are studied. With the proposed optimal design, the ability fluctuations are mitigated as much as possible, whereas the steadiness of the rotating speed is still guaranteed. Moreover, the oscillation of the electromagnetic torque is additionally reduced, and the performance of the MPPT is only weakened slightly.
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