PATENT CLAIM ANALYSIS

Application Number: 15913387
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["363", "041000"]

Abstract:
Control systems for a multi-level diode-clamped inverter and corresponding methods include a processor and a digital logic circuit forming a hybrid controller. The processor identifies sector and region locations based on a sampled reference voltage vector V* and angle θ e *. The processor then selects predefined switching sequences and pre-calculated turn-on time values based on the identified sector and region locations. The digital logic circuit generates PWM switching signals for driving power transistors of a multi-level diode-clamped inverter based on the turn-on time values and the selected switching sequences. The control system takes care of the existing capacitor voltage balancing issues of multi-level diode-clamped inverters while supplying both active and reactive power to an IT load. Using the control system, one can generate a symmetrical PWM signal that fully covers the linear under-modulation region.

Claim (Index 11):
A method of controlling a multi-level inverter, comprising:\n sampling a reference voltage vector and an angle; identifying a sector among a plurality of sectors of the multi-level inverter and a region among a plurality of regions of the multi-level inverter based on the sampled reference voltage vector and the sampled angle; selecting a switching sequence and a plurality of turn-on time values based on the identified region location; and generating pulse width modulation (PWM) switching signals for the plurality of regions of the multi-level inverter and the plurality of sectors of the multi-level inverter based on the turn-on time values and the selected switching sequence.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 90.0
- Lexical Diversity: 1.70238
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15493978', '15694135', '13547562', '12394613', '15315128']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8199981312049185
- 35 USC 102 Novelty (BERT): 0.5298379312937993
- Combined Prediction Score: 0.7909821112138066
- Mean Citation Score: 252.825876
- Max Citation Score: 398.51974
- Similarity Product: 325.7295988430166

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

Dataset: test