PATENT CLAIM ANALYSIS

Application Number: 15758922
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["363", "126000"]

Abstract:
A power conversion device includes a plurality of leg circuits and a control device. The plurality of leg circuits correspond to respective phases of an AC circuit and connected in parallel between common first and second DC terminals. Each leg circuit includes a plurality of chopper cells each including an energy storage and cascaded to one another and at least one inductance connected in series to the plurality of chopper cells. The control device controls an operation of only at least one chopper cell included in each leg circuit based on a circulating current which circulates through the leg circuits.

Claim (Index 11):
A power conversion device which converts power between a DC circuit and an AC circuit, the power conversion device comprising:\n a plurality of leg circuits which correspond to respective phases of the AC circuit and are connected in parallel between common first and second DC terminals, each leg circuit including:\n a plurality of converter cells each including an energy storage and cascaded to one another; and \n at least one inductance connected in series to the plurality of converter cells; and \n a control device which controls operations of the plurality of converter cells, the control device controlling an operation of only at least one converter cell included in each leg circuit based on a circulating current which circulates among the leg circuits, each leg circuit being divided into a first arm and a second arm with a connection portion electrically connected to a corresponding phase of the AC circuit being interposed, the first arm of each leg circuit including:\n a plurality of first converter cells controlled not based on the circulating current; \n a plurality of second converter cells controlled based on the circulating current; and \n a first inductance, \n the second arm of each leg circuit including a plurality of third converter cells controlled not based on the circulating current, the control device generating a first voltage command value for controlling output voltages from the plurality of first converter cells for each leg circuit based on a DC current and a DC voltage from the DC circuit and an AC current and an AC voltage of each phase from the AC circuit, the control device generating a second voltage command value for controlling output voltages from the plurality of second converter cells by linearly combining a first value based on a difference between the circulating current and a circulating current command value with the first voltage command value for each leg circuit.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 90.0
- Lexical Diversity: 1.82456
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15759151', '15759050', '15109594', '15328810', '15549330']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.834409811876902
- 35 USC 102 Novelty (BERT): 0.5442969734873601
- Combined Prediction Score: 0.8053985280379479
- Mean Citation Score: 326.987206
- Max Citation Score: 405.47784
- Similarity Product: 386.28878845913886

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

Dataset: test