PATENT CLAIM ANALYSIS

Application Number: 15863955
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["363", "056030"]

Abstract:
A fault inrush transient current restraining type virtual synchronous inverter and thereof is disclosed. The invention solves the problem that a virtual synchronous inverter will be burned due to inrush transient current in an extreme situation of a symmetrical fault occurring on the grid side by setting an information collection module for inverter output voltages and currents, a virtual synchronous inverting control module, a fault detection and synthesize module, a hysteresis comparison control module and a post fault clearing switch back grid-tie control module.

Claim (Index 1):
A fault inrush transient current restraining type virtual synchronous inverter, comprising: an information collection module for inverter output voltages and currents, a virtual synchronous inverting control module, a fault detection and synthesize module, a hysteresis comparison control loop module and a post fault clearing switch back grid-tie control module; wherein\n the information collection module for the inverter output voltages and currents collects an output voltage signal of the inverter, an output current signal of the inverter and a PCC voltage signal; to the virtual synchronous inverting control module realizes a virtual synchronous generator characteristics while a system operates normally; the fault detection and synthesize module detects an output current instantaneous value and a voltage peak value of the inverter in real time, determines whether there is a fault and whether the fault is cleared on a grid-side and performs a logic synthesis function; the hysteresis comparison control module suppresses an inrush current during a grid side fault; and the post fault clearing switch back grid-tie control module starts a switch back control by adopting a fault clearing signal given by the fault detection and synthesize module; then a hysteresis comparison control output is switched to a conventional virtual synchronous inverting control.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 1.53448
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14749339', '14797039', '14075474', '13128540', '13103070']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8066170846748253
- 35 USC 102 Novelty (BERT): 0.4674625974843135
- Combined Prediction Score: 0.7727016359557741
- Mean Citation Score: 180.822204
- Max Citation Score: 189.34532
- Similarity Product: 150.56308542342185

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

Dataset: test