Differential protection method for bridge circuit in current converter control system
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United States of America Patent
Stats
-
May 30, 2017
Grant Date -
Jan 5, 2017
app pub date -
Mar 22, 2016
filing date -
Jun 30, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a differential protection method for bridge circuit in current converter control system, including the steps of: 1). obtaining sample values of the three-phase current for the current converter control system at AC side thereof, and calculating the absolute value of each sampling value respectively; 2). calculating a value of current at the AC side of the current converter control system; and 3). determining whether to perform a relay protection for the current converter control system according to the value current at the AC side of the current converter control system. The method of the present invention provided, is fast, convenient, and with a small amount of calculation. The current converter control system determines whether to perform a relay protection in a short time. Also it reduces the possibility that the equipment burned because of cannot break the circuit in time.
First Claim
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Family
International Classification(s)
- 2016 Application Filing Year
- H02M Class
- 3114 Applications Filed
- 2512 Patents Issued To-Date
- 80.67 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H02M Class
- 0 % this patent is cited more than
- 8 Age
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|---|---|---|---|---|
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| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 30, 2028 |
