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 3):
The method according to  claim 1 , wherein correcting the nacelle wind velocity data comprises:\n determining whether an authenticated nacelle transfer function has been acquired; if the authenticated nacelle transfer function has been acquired, correcting the nacelle wind velocity data directly by virtue of the authenticated nacelle transfer function; if the authenticated nacelle transfer function has not been acquired, selecting a typical wind turbine generator in the wind power plant; arranging an anemometer tower within a range of twofold to fourfold wind turbine diameter of the typical wind turbine generator, and measuring wind velocity and wind direction signals on the anemometer tower; calculating a mean of measured wind velocity and wind direction signal data within 2 min, nacelle wind velocity being an independent variable and a measured wind velocity being a dependent variable, dividing a wind velocity range into continuous intervals according to the nacelle wind velocity, the continuous intervals are achieved as follows: wind velocities of integral multiple of 0.5 m/s are used as centers and two continuous intervals of a range of 0.25 m/s are demarcated on left and right sides of the centers, data in the intervals comprising wind velocities which are comprised between 1 m/s lower than a cut-in wind velocity and 1.5 times of a wind velocity corresponding to rated power 85% of the wind turbine generator, and when there are at least three data in each interval, obtaining an nacelle transfer function represented by an interval-based mathematical function by fitting, the nacelle transfer function being a function in which nacelle wind velocities in each interval are used as measured wind velocities; and calculating a 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: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12447505', '14000602', '14020754', '15622317', '11295275']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2130958454070407
- 35 USC 102 Novelty (BERT): 0.4821180508836781
- Combined Prediction Score: 0.2399980659547045
- Mean Citation Score: 232.010922
- Max Citation Score: 239.52399
- Similarity Product: 196.9790122945332

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

Dataset: test