PATENT CLAIM ANALYSIS

Application Number: 16196759
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["363", "051000"]

Abstract:
A premagnetization device is disclosed for a converter system connectable to a three-phase electrical grid that has a three-phase power transformer, a converter connected to the power transformer and a circuit-breaker on the grid side of the power transformer. The premagnetization device is configured to suitably premagnetize the power transformer in a state isolated from the grid. The premagnetization device uses a single-phase reference voltage (Uref) that has a fixed relationship to the grid voltage (Ugrid) with regard to the voltage parameters, in order to generate, based on the measured instantaneous reference voltage (Uref) and the known fixed parameter relationships, by actuating the converter, a three-phase alternating voltage synchronous to the grid voltage (Ugrid) on the grid side of the power transformer. A converter system and a method for premagnetizing a three-phase power transformer of a converter system are also disclosed.

Claim (Index 6):
The premagnetization device according to  claim 5 , wherein the storage means comprise the determined relevant information indicating the fixed relationships between the amplitudes and the phase angles of the single-phase reference voltage (Uref) and the three-phase grid voltage (Ugrid) and the phase sequence of the three-phase system of the grid, and further store measured or predetermined data, including one or more of a turns ratio between the primary and secondary windings of the power transformer, an amplitude ratio and/or phase shift between the primary and secondary voltage of the power transformer when the primary winding of the auxiliary transformer is idle, and a control logic is configured for the premagnetization procedure to calculate actual values of the grid voltage (Ugrid) and the primary voltage of the power transformer during a premagnetization procedure based on the stored relevant information or the measured or predetermined data.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 98.0
- Lexical Diversity: 2.46875
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12320759', '15705336', '12836889', '14025944', '13888482']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8332212289974567
- 35 USC 102 Novelty (BERT): 0.4876154088085329
- Combined Prediction Score: 0.7986606469785643
- Mean Citation Score: 222.876758
- Max Citation Score: 228.12788
- Similarity Product: 171.1429572851276

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