Wave power generation device and method of controlling the same

摘要

A wave power generation device for synchronizing a vertical movement of a float with all the wave periods, and a method of controlling the same. The device has a controller which controls a torque of a power generator, and the controller is configured to estimate a displacement and a speed of a float from data of a rotation number or a rotation speed of the power generator, to estimate a wave period from the displacement and the speed, and to determine a displacement coefficient corresponding to the wave period from a data table stored in advance, and to transmit a calculated product of the displacement coefficient and the displacement as a torque command to the power generator so as to control a torque of the power generator.

主权项

1. A wave power generation device comprising:
a body; a float configured to move vertically along the body; a transmission mechanism configured to convert the vertical movement of the float to a rotary movement; and a power generator connected to the transmission mechanism, wherein the wave power generation device has a controller configured to control a torque of the power generator; and the controller has:
either one of a configuration in which a displacement z and a speed z′ of the float are estimated from data of a rotation number or a rotation speed of the power generator, a wave period is estimated from the displacement z and the speed z′, and a displacement coefficient A corresponding to the wave period is determined from a data table stored in advance or a configuration in which the displacement z and the speed z′ of the float are obtained from an acceleration sensor installed in the float, the wave period is estimated from the displacement z and the speed z′, and the displacement coefficient A corresponding to the wave period is determined from the data table; anda configuration in which a product calculated from the displacement coefficient A and the displacement z is transmitted as a torque command Tq1 to the power generator so as to control a torque of the power generator.