Wind electricity power prediction index evaluation method and device for power grid peak load regulation capacity limit values

The invention relates to a wind electricity power prediction index evaluation method and device for power grid peak load regulation capacity limit values. The detection method comprises steps that parameters required for wind electricity prediction calculation are read; actual data, prediction data and peak load regulation capacity limit data of wind electricity active power are read; normalization processing on the data is carried out; off-limit accuracy and a prediction electric quantity error are calculated; average weight accuracy is calculated. The invention further relates to the device, the device comprises a data reading module, a data processing module, an off-limit accuracy calculation module and a weight accuracy calculation module. The method is advantaged in that accuracy of a wind electricity power prediction result is evaluated at different time segments of peak flat valley points, algorithm accuracy can be not only reflected from more aspects, but also a scheduling worker is facilitated to mas