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A novel apparatus based on variable inductors to control the insertion compensating voltage of the transmission line is proposed in this paper. The apparatus can change the alternative voltage into the desired alternative voltage directly by using the control strategy proposed in this paper and insert the voltage into the line. Since the amplitude and the phase angle of the voltage supplied by the...
In the doubly-fed wind generator system, a bi-directional converter is needed to control the energy bi-directional flow due to the different operation of generator. Doubly-fed PWM converter with attractive characteristics, such as well sinusoidal waveform of input current, high power factor, low THD (total harmonic distortion) to the grid and motor, and bi-directional conversion, could better meet...
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