PATENT CLAIM ANALYSIS

Application Number: 15944859
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["322", "020000"]

Abstract:
A method and a system for adjusting a wind-turbine power take-off are provided. The system comprises: a rotor position sensor operatively connected to a synchronous generator, a plurality of phase current sensors, an active rectifier, and a micro-controller. Instructions stored on the micro-controller, when executed, are configured to cause the micro-controller to execute the method comprising: obtaining a measurement of a rotor rotation angle; determining an actual rotation speed of a rotor of the synchronous electric generator; and executing an optimization algorithm to determine an optimized speed of the synchronous electric generator. The synchronous electric generator is controlled based on the determined optimized speed by at least one of: setting an electromagnetic torque on a shaft of the synchronous electric generator, setting currents in windings of the synchronous electric generator, and controlling the active rectifier boost converter function operating in conjunction with a down converter.

Claim (Index 16):
A method of adjusting wind turbine power take-off, based on controlling a speed of a wind turbine in accordance with an optimum speed search algorithm that estimates a change in an output energy for a given time interval as the rotational speed changes and sets a new rotation speed value based on the values obtained;\n at the wind speed above a calculated wind speed, which corresponds to the nominal value of power, it ensures stabilization of the electromagnetic torque on the synchronous winding shaft, at the same time the control of the speed of rotation in the entire range of working wind speeds is carried out by a power take-off system comprising\n a synchronous generator with permanent magnets with a rotor position sensor mounted on a single shaft with a wind turbine; \n a power supply unit for electronic devices connected directly to the output of an electrical machine; \n an active rectifier with vector control by the microprocessor programmable controller, providing the possibility of specifying the electromagnetic torque by forming sinusoidal in-phase with EMF currents of a given amplitude in the phase windings of the generator and converting them at the output of the active rectifier to the charging current of the DC link capacitor with a voltage higher than the user specified output voltage, this stabilization of the voltage in a predetermined range of values is provided by a down converter under control of the microprocessor controller at full power take-off by the consumer, and if, the full power take-off by the consumer is impossible, is provided by a down converter and a ballast, under control of the microprocessor; \n the down converter, controlled by the microprocessor and configured to support voltage in the DC link between the active rectifier and the down converter within a predetermined range of values, as well as to lower the output voltage to a desired level of consumer and to limit a maximum current value for a short circuit protection; a ballast for removal of excess electricity under control of a microprocessor controller; and a braking system associated with the windings of the synchronous electric generator, the breaking system being controlled by the microprocessor controller and being configured to produce a stepped braking of the synchronous electric generator or an emergency stop of the wind turbine.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 91.0
- Lexical Diversity: 1.98765
- Patent Class: 322.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['10773851', '13130359', '10858631', '10858721', '15575618']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6822555726138146
- 35 USC 102 Novelty (BERT): 0.5092064913442788
- Combined Prediction Score: 0.664950664486861
- Mean Citation Score: 242.511418
- Max Citation Score: 250.68768
- Similarity Product: 196.53560963247293

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