PATENT CLAIM ANALYSIS

Application Number: 15759344
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["290", "044000"]

Abstract:
A multi-loop switching control system for a doubly-fed wind turbine based on logic switch control. Output variables of the doubly-fed wind turbine may be used to form output feedback control channels. Each output feedback control channel may switch between a switch controller and a vector controller to form a multi-loop switching controller. When a power system associated with the doubly-fed wind turbine is subjected to a relatively large external disturbance, state variables and the output variables of the wind turbine deviate from an original balance point, and the output feedback control loops of the doubly-fed wind turbine are switched from the vector controller to the switch controller. Under control of the switch controller, the state variables and output variables return to a vicinity of the original balance point, and the output feedback control loops of the wind turbine are switched from the switch controller to the vector controller.

Claim (Index 15):
The multi-loop switching control system according to  claim 10 , wherein a control law of the first-order logic switch controller in the stator reactive power switch control loop is defined according to: v dr \ue8a0 ( t ) = { v dr \u2014 \ue89e max , if q \ue8a0 ( t ) = true \ue89e v dr \u2014 \ue89e min , if q \ue8a0 ( t ) = false where v dr  is a d-axis component of a rotor-side converter voltage, v dr _ max  is a maximum value of the d-axis component of the rotor-side converter voltage and v dr _ min  is a minimum of the d-axis component of the rotor-side converter voltage.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.75439
- Patent Class: 290.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12996046', '11647124', '11477593', '13218311', '12293309']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6422281478623856
- 35 USC 102 Novelty (BERT): 0.5347349195833706
- Combined Prediction Score: 0.631478825034484
- Mean Citation Score: 335.148848
- Max Citation Score: 342.86636
- Similarity Product: 205.38519810915943

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

Dataset: test