DIAGNOSTIC SYSTEM AND DIAGNOSTIC METHOD FOR WIND POWER GENERATION DEVICE

摘要

A diagnostic system for a wind power generation device equipped with a main shaft capable of rotating at variable speeds together with the blades, said system being equipped with: one or more physical amount sensors for measuring a physical amount; a rotational speed sensor for measuring the rotational speed of the main shaft; and a diagnostic device configured so as to determine whether an error exists in the physical amount. The diagnostic device has: a determination standard setting unit configured so as to set a determination standard for performing the determination on the basis of the relationship between the rotational speed of the main shaft and the physical amount; and a determination unit configured so as to determine whether an error exists in the measured value of the physical amount, on the basis of a measured value for the physical amount as measured by the physical amount sensor, a measured value for the rotational speed of the main shaft as measured by the rotational speed sensor, and the determination standard set by the determination standard setting unit.