PATENT CLAIM ANALYSIS

Application Number: 15888456
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["307", "078000"]

Abstract:
A photovoltaic inverter system and an operation method thereof are provided. The photovoltaic inverter system includes photovoltaic modules, DC/DC converters, at least one direct current combiner device and a centralized inverter. An input signal or an output signal of each of the DC/DC converters is sampled by the DC/DC converter, and a loop process is performed by the DC/DC converter on the input signal or the output signal to maintain the input signal or the output signal at a preset value, so as to keep the output power of the photovoltaic module to be the maximum output power, thereby solving the problem of the series-parallel mismatch of a photovoltaic array due to being shaded or aging of a photovoltaic module. In addition, the photovoltaic inverter system can include only one centralized inverter. Therefore, the cost is reduced compared with photovoltaic inverter systems in the conventional technology.

Claim (Index 1):
A photovoltaic inverter system, comprising:\n photovoltaic modules; direct current/direct current (DC/DC) converters, wherein an input end of each of the DC/DC converters is connected to at least one of the photovoltaic modules, and each of the DC/DC converters is configured to control output power of the connected photovoltaic module; at least one direct current combiner device, wherein output ends of a plurality of DC/DC converters among the DC/DC converters are connected in series with each other to form a DC/DC converter string connected to an input end of the direct current combiner device, and the direct current combiner device is configured to combine direct currents outputted from a plurality of the DC/DC converter strings; and a centralized inverter, wherein an output end of the at least one direct current combiner device is connected to an input end of the centralized inverter, and the centralized inverter is configured to convert a direct current outputted from the at least one direct current combiner device into an alternating current and couple the alternating current to a power grid or a load.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 88.0
- Lexical Diversity: 2.02564
- Patent Class: 307.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12495840', '14716818', '13361313', '15149353', '12788441']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8596587760451271
- 35 USC 102 Novelty (BERT): 0.4981515674860478
- Combined Prediction Score: 0.8235080551892192
- Mean Citation Score: 311.9871480000001
- Max Citation Score: 319.094
- Similarity Product: 297.2846043542624

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