PATENT CLAIM ANALYSIS

Application Number: 16164361
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-08
Patent Classification: ["363", "056120"]

Abstract:
A system and method for controlling a grid-connected reactive power compensation inverter. The system uses a combination of feedforward and feedback controls to compute a reference voltage signal based on sensor-measured voltages and currents, where the reference voltage signal is used to control the inverter switches. The disclosed method modifies a cross-couple feedforward signal used in the reference voltage calculations, where the modified cross-couple signal includes a combination of both reference and actual currents, and the modified control scheme reduces the DC-link voltage overshoot experienced during a capacitive overload event while still providing the required reactive power and maintaining grid system stability.

Claim (Index 15):
The controller according to  claim 14  wherein the sensor inputs include the three phase grid voltage signals including phase and amplitude for all three phases of the grid from grid voltage sensors, the DC-link voltage signal indicating voltage across an inverter DC-link capacitor from a DC-link voltage sensor, the three phase grid-inverter current signals measuring current flowing between the inverter and the grid for each phase from current sensors, and the quadrature current reference signal indicating a desired value of reactive power to be delivered to the grid by the inverter from a master controller.

Metadata:
- Claim Count in Document: 42.0
- Percentile: 97.0
- Lexical Diversity: 1.74194
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13100933', '12884822', '14225622', '13498109', '15783057']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8298304194215935
- 35 USC 102 Novelty (BERT): 0.4782386004746216
- Combined Prediction Score: 0.7946712375268964
- Mean Citation Score: 210.949814
- Max Citation Score: 215.4389
- Similarity Product: 171.5975905107736

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