PATENT CLAIM ANALYSIS

Application Number: 15746166
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["307", "064000"]

Abstract:
This uninterruptible power supply executes a counter voltage generation mode between a bypass power supply mode and a lap power supply mode. During the counter voltage generation mode, voltage feedforward control is performed for an inverter ( 2 ) in accordance with a detection value of a voltage detector (VD 5 ) to generate a counter voltage at one terminal of a switch (S 2 ), the counter voltage being at a level corresponding to a voltage at an output terminal (T 4 ). Therefore, without providing an extra voltage detector for generation of counter voltage, an inrush current can be prevented from flowing from a bypass AC power source ( 52 ) to an AC filter (F 2 ) through the switch (S 2 ) when the switch (S 2 ) is turned on.

Claim (Index 1):
An uninterruptible power supply comprising:\n a first terminal configured to receive AC power supplied from a commercial AC power source; a second terminal configured to receive AC power supplied from a bypass AC power source; a third terminal to be connected to a load; a converter configured to convert AC power supplied from the commercial AC power source through the first terminal into DC power; an inverter configured to convert DC power generated by the converter or DC power in a power storage device into AC power; an AC filter configured to convert a waveform of an output voltage of the inverter into a sinusoidal wave; a first switch having one terminal configured to receive an AC voltage that has passed through the AC filter, and having the other terminal connected to the third terminal; a second switch connected between the second terminal and the third terminal; a first voltage detector configured to detect an instantaneous value of a voltage at the third terminal; and a controller configured to control the inverter based on a detection value of the first voltage detector, the controller successively executing:\n a first mode in which the first switch is OFF and the second switch is ON to supply AC power from the bypass AC power source to the load; \n a second mode in which voltage feedforward control is performed for the inverter in accordance with the detection value of the first voltage detector to generate a counter voltage at the one terminal of the first switch, the counter voltage being at a level corresponding to the voltage at the third terminal; \n a third mode in which the first switch is ON to supply AC power to the load from both the inverter and the bypass AC power source and in which an output current of the inverter is increased to a load current; and \n a fourth mode in which the second switch is OFF to supply AC power generated by the inverter to the load.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.11429
- Patent Class: 307.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15316783', '15315188', '15573731', '15517188', '15777723']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.812309248039387
- 35 USC 102 Novelty (BERT): 0.4775616529636365
- Combined Prediction Score: 0.7788344885318119
- Mean Citation Score: 233.33052400000005
- Max Citation Score: 241.92416
- Similarity Product: 203.3162172943688

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

Dataset: test