PATENT CLAIM ANALYSIS

Application Number: 15748719
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["363", "039000"]

Abstract:
A voltage source converter includes DC terminals for connection to a DC network, a plurality of converter limbs between the DC terminals, and a controller. Each converter limb includes first and second limb portions separated by a respective AC terminal, the AC terminal of each converter limb connecting to a multi-phase AC network. Each limb portion extends between a corresponding DC terminal and AC terminal. Each limb portion including a valve having switching element(s) and energy storage device(s), the switching element being switchable to selectively insert the energy storage device into the limb portion and bypass the energy storage device to control a voltage across that valve. The controller is programmed to control the switching of valves to form a current circulation path including the limb portions corresponding to the selected valves, the AC phases connected to the limb portions corresponding to the selected valves, and the DC network.

Claim (Index 11):
A method of operating a voltage source converter, the voltage source converter comprising:\n first and second DC terminals for connection to a DC network; and a plurality of converter limbs, each converter limb extending between the first and second DC terminals, each converter limb including first and second limb portions separated by a respective AC terminal, the AC terminal of each converter limb for connection to a respective AC phase of a multi-phase AC network, each first limb portion extending between the corresponding first DC terminal and AC terminal, each second limb portion extending between the corresponding second DC terminal and AC terminal, each limb portion including a respective valve, each valve including at least one switching element and at least one energy storage device, the or each switching element of each valve being switchable to selectively insert the or each corresponding energy storage device into the corresponding limb portion and bypass the or each corresponding energy storage device in order to control a voltage across that valve, wherein the method comprises the steps of: switching a selected valve of one of the plurality of converter limbs and another selected valve of another of the plurality of converter limbs so as to form a current circulation path passing through the selected valves, the current circulation path including: the limb portions corresponding to the selected valves, the AC phases connected to the limb portions corresponding to the selected valves; and the DC network; and during formation of the current circulation path, switching the selected valves to force a circulating alternating current to flow through the current circulation path, the circulating alternating current including at least one alternating current component; and switching the selected valves to control the phase angle and amplitude of the or each alternating current component of the circulating alternating current to control the amount of energy transferred to or from each selected valve resulting from the flow of the circulating alternating current through each selected valve.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 86.0
- Lexical Diversity: 2.44118
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15030012', '14896907', '13881215', '16081092', '14760183']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8277562038542718
- 35 USC 102 Novelty (BERT): 0.5040593719532026
- Combined Prediction Score: 0.7953865206641649
- Mean Citation Score: 277.91255199999995
- Max Citation Score: 307.9287700000001
- Similarity Product: 263.9922299545992

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