Energy Efficiency Analysis and Calculation Method of Wind Turbine Based on Single Byte Power Band Probability Distribution and Edge Detection Technology

A scatter plot with wind speed and power as the horizontal and vertical axes is established, and the horizontal power band and vertical wind speed band are divided to form several wind speed and power grids. The probability distribution of each grid in each horizontal power band is calculated, and the probability distribution data of the horizontal power band is mapped to an integer value of 0 ~ 255.The main power band of wind turbine is extracted by image edge detection technology. Through statistical calculation of normal points, overgeneration points, undergeneration points and limited power points of the main power band, the power generation performance of the wind turbine in a certain period of time can be analyzed, so as to realize the energy efficiency analysis of the wind turbine. Taking the actual operation data of wind turbine as an example, the effectiveness of this method in identifying abnormal data is verified.