| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power conversion apparatus or the like, capable of driving a motor without causing axial twisting vibration between a turbine and a generator. <P>SOLUTION: The power conversion apparatus includes a variation amount calculator 114 for detecting a variation in rotation speed of the generator as a variation in frequency or amplitude of an input voltage of the power conversion apparatus, a power calculator 115 for calculating the power of the power conversion apparatus, and a power adjustor 116 for correcting the operation of the power conversion apparatus so that the power calculation value can change in accordance with the variation amount. The variation amount from the variation amount calculator 114 and a power calculation value from the power calculator 115 are input into the power adjustor 116, and the power adjustor 116 inputs a correcting signal for varying the output current of the power conversion apparatus into a motor vector controller 112 so that the power calculation value can change in accordance with the variation amount. In this case, the power adjustor 116 outputs a correcting signal for varying an output current so that a ratio of power variation to the variation in rotation speed of the generator is the same as a ratio at an operation point (ΔP/Δω=P0/ω0) or larger than the ratio at the operation point. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
