PATENT CLAIM ANALYSIS

Application Number: 15958246
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-09
Patent Classification: ["702", "182000"]

Abstract:
A method for evaluating power characteristics of wind turbines, an apparatus and a storage medium. By means of verifying master control operating data of the wind turbines (1), correcting nacelle wind speed data (2), and calculating a power curve of the wind turbines and a guarantee value for the power curve, a wind turbine power characteristics evaluation result (3) is obtained. The present method economically and efficiently evaluates a power characteristics curve for wind turbines, makes full use of existing operating data of the wind turbine master control system, and performs evaluation of the power characteristics of wind turbines of a same model in a wind farm. The method ensures accuracy and test efficiency, and controls test times within one month, thereby ensuring the reliability and high efficiency of the wind turbines.

Claim (Index 5):
The method according to  claim 3 , wherein calculating the free stream wind velocity comprises:\n calculating the free stream wind velocity V free  which is estimated by the nacelle wind velocity and a wind velocity of the anemometer tower and corrected in consideration of an air flow distortion caused by a terrain according to the nacelle transfer function: V free = V m , i + 1 - V m , i V nacelle , i + 1 - V nacelle , i \u00d7 ( V nacelle - V nacelle , i ) + V m , i , where V nacelle  is the nacelle wind velocity in each interval, V m  is the measured wind velocity, V nacelle,i  and V nacelle,i+1  are interval means of the nacelle wind velocities in an interval i and an interval i+1 respectively, and are obtained through the nacelle transfer function, V m,i  and V m,i+1  are interval means of wind velocities of the anemometer tower in the interval i and the interval i+1 respectively, and are obtained through the nacelle transfer function, and V nacelle  is a measured value of a nacelle anemometer, and is configured to estimate the free stream wind velocity.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 91.0
- Lexical Diversity: 2.14286
- Patent Class: 702.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12447505', '14000602', '14020754', '15622317', '11295275']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2326808922930839
- 35 USC 102 Novelty (BERT): 0.4906898160807204
- Combined Prediction Score: 0.2584817846718475
- Mean Citation Score: 232.010922
- Max Citation Score: 239.52399
- Similarity Product: 182.3530037308145

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test