PATENT CLAIM ANALYSIS

Application Number: 15958317
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["318", "268000"]

Abstract:
A method for identifying the discrete instantaneous angular speed of electromechanical systems in which electrical rotating machinery is used and in which at least one electrical signal is measured during an operation of the electromechanical system. The method includes measuring analog stator current signals and analog stator voltage signals for at least one phase A, B, C, converting the measurements into a digital discrete form, transmitting the digital discrete signals to a computer device wherein data analysis is performed in a processor unit on the basis of a simplified mathematical model of the dynamics of the motor or generator. During the data analysis an average rotor time constant is calculated, an average supply frequency value is identified, an average angular speed is obtained, and an instantaneous phase difference between the discrete stator current signals and the discrete stator voltage signals is determined. The discrete instantaneous angular speed is identified by combining the average supply frequency value, the instantaneous phase difference between the discrete stator current signals and the discrete stator voltage signals, the average rotor time constant, and a number of pole pairs of the electric motor, given by the user. The result of combining the data is stored in a memory of the processor unit.

Claim (Index 9):
A method according to  claims 1  to  5 , wherein the average angular speed {dot over ( \u03b8 )} of the electric motor or generator is identified by calculating a magnitude of the discrete stator current space phasors as a square root of the sum of the squared values of the direct- and quadrature-axis stator current signals, transforming the magnitude of the discrete stator current space phasors into the frequency domain, and identifying the frequency component at which the amplitude component of the frequency domain signal is greatest within a window of frequencies the center of which is located at an initial speed estimate.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 91.0
- Lexical Diversity: 2.41304
- Patent Class: 318.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12909589', '13692386', '14612460', '12676362', '12268819']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6598010866094549
- 35 USC 102 Novelty (BERT): 0.500825697765471
- Combined Prediction Score: 0.6439035477250565
- Mean Citation Score: 224.002936
- Max Citation Score: 229.68747
- Similarity Product: 164.56692043738605

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

Dataset: test