Data collection system and method for wind turbine power generation facility, and wind turbine power generation facility

A data collection system of a wind turbine power generation facility including wind turbine power generating apparatuses, the data collection system comprising:

• a plurality of wind turbine controllers provided for the wind turbine power generating apparatuses, respectively, each of the wind turbine controllers including:
• a control part for controlling a corresponding one of the wind turbine power generating apparatuses, the control part being configured to, once in every control calculation cycle, perform calculation for control of the corresponding one of the wind turbine power generating apparatuses and send a control signal based on the calculation to the corresponding one of the wind turbine power generating apparatuses;
• a representative data memory part for storing representative data related to at least one parameter indicating a state or an operation history of the corresponding one of the wind turbine power generating apparatuses;
• a representative data selection part configured to, once in every control calculation cycle of the control part, obtain data related to the at least one parameter and, once in every control calculation cycle of the control part, determine whether to store the obtained data of the at least one parameter as the representative data of the at least one parameter in the representative data memory part;
• a calculator serving as a data collection part configured to collect, from each of the wind turbine controllers, the representative data of the at least one parameter related to the state of the wind turbine power generating apparatus stored in the representative data memory part of said each of the wind turbine controllers;
• and
• a local network via which the calculator is connected to the wind turbine controllers, wherein
• each of the plurality of wind turbine controllers is configured to:
• acquire, from the data related to the at least one parameter during a predetermined period including a time of occurrence of an event related to and impacting one of the plurality wind turbine power generating apparatuses corresponding to one of the plurality of wind turbine controllers, a statistic value as the representative data, and
• store the representative data in the representative data memory part.