PATENT CLAIM ANALYSIS

Application Number: 16172523
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-07
Patent Classification: ["363", "040000"]

Abstract:
Various enhancements to grid-interactive inverters in accordance with embodiments of the invention are disclosed. One embodiment includes input terminals configured to receive a direct current, output terminals configured to provide an alternating output current to the utility grid, a controller, an output current sensor, and a DC-AC inverter stage comprising a plurality of switches controlled by control signals generated by the controller. In addition, the controller is configured to: generate control signals that cause the switches in the DC-AC inverter stage to switch a direct current in a bidirectional manner; measure the alternating output current; perform frequency decomposition of the output current; and generate control signals that cause the switches in the DC-AC inverter stage to switch current in a way that the magnitude of a plurality of unwanted current components is subtracted from the resulting output current.

Claim (Index 5):
The grid-interactive inverter of  claim 4 , further comprising:\n an output voltage sensor: wherein is configured to:\n measure output current power using the output current sensor and the output voltage sensor; \n observe a maximum output current value using the output current sensor; \n obtain the amplitude and phase of the harmonics of the fundamental component of the output current using the result of the Fast Fourier Transform; \n scale the amplitudes of the harmonics by the maximum observed output current value; \n subtract the scaled harmonics from the output current measurements; \n scale the difference between the measured output current and the scaled harmonics by an amount that is a function of the measured output current power to create an error term; \n low pass filter the error term; \n generate PWM control signals that are supplied to the switches in the DC-AC inverter based upon the low pass filtered error term.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 97.0
- Lexical Diversity: 2.20588
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15043240', '13546993', '14329775', '13103070', '14749339']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8229967115477753
- 35 USC 102 Novelty (BERT): 0.5848183329579179
- Combined Prediction Score: 0.7991788736887896
- Mean Citation Score: 385.7204420000001
- Max Citation Score: 473.98242
- Similarity Product: 470.6546129778672

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