ELECTRIC POWER CONVERTING DEVICE, AND METHOD FOR CONTROLLING ELECTRIC POWER CONVERTING DEVICE

WIPO Patent Application WO/2020/100372

A1

Provided are an electricity generating system for a wind power electricity generating system connected to an electric power grid, and a method for controlling the same, wherein the electric power converting device for the wind power electricity generating system is capable of limiting a deterioration in the service life of components of a wind turbine mechanical system while limiting a deterioration in the wind power utilization rate, and has a high efficiency and high reliability.　This electricity generating system for a wind power electricity generating system is characterized by being provided with: a first electric power converter for converting variable frequency alternating-current power output by an electricity generator connected to a shaft of a wind turbine into direct-current power; a second electric power converter for converting the direct-current power into commercial frequency alternating-current power and supplying the same to the electric power grid; a direct-current power controller which is connected between the first electric power converter and the second electric power converter, and which controls the direct-current power; and a control unit which controls the direct-current power controller on the basis of the variable frequency alternating-current power and the commercial frequency alternating-current power.

KIKUCHI AKIRA (JP)
ITO TOMOMICHI (JP)

PCT/JP2019/033059

May 22, 2020

August 23, 2019

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HITACHI LTD (JP)

H02P9/00; H02J3/38

WO2012026014A1

2012-03-01

JP2016167900A	2016-09-15
JP2012231624A	2012-11-22
JP2008131736A	2008-06-05

POLAIRE I.P.C. (JP)

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