A method for calculating the power loss of wind turbine generator system based on reliability dimension

Abstract

The invention discloses a method for calculating the power loss of a wind turbine generator system based on a reliability dimension, which comprises the following steps: 1) dividing the state of the wind turbine generator system into 14 kinds based on the reliability dimension; 2) collecting that historical data of the actual wind speed and the actual power of the unit in a preset period of time,filter the collected historical data and obtaining an average value; 3) fitting the filtered and averaged historical data with the least square method to obtain the wind speed; Power curve as reference curve; 4) through that real-time data of the reliability state of the wind turbine generator set, the time period in which the wind turbine generator set is in the non-resettable fault, the scheduled inspection, the maintenance, the dispatch power restriction, the power restriction shutdown, the on-site and off-site affected state being found out in the calculation time period; 5) the actual wind speed corresponding to the time period of each state being taken as a variable and substituted into a reference curve to obtain the correspond theoretical power po; 6) the calculated theoretical power po being subjected to statistical integral to obtain the corresponding power loss under each state of the wind turbine generator system.

Description

technical field [0001] The invention relates to a method for calculating the power loss of a wind turbine based on the reliability dimension. The method is based on the reliability dimension of the wind turbine and uses a wind speed-power curve method to calculate the power loss of the wind turbine. Background technique [0002] At present, the calculation of the power loss of wind turbines is mainly based on the status of the original code of the PLC of the wind turbines. The status of the wind turbines is divided into operation, fault, standby, maintenance, and offline, and then combined with the wind speed-power curve to calculate the power loss corresponding to the status of faults and maintenance. Due to the many types and different structures of wind turbines, the existing technology cannot systematically analyze the changes of all factors on the power loss of the entire wind turbine. Contents of the invention [0003] The purpose of the present invention is to provi...

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Problems solved by technology

Due to the many types of wind turbine brands and different structures, the existing technology cannot systematically analyze the changes of all factors on the power loss of the entire wind turbine

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