An In-Rush Current Suppression Technique for the Solid-State Transfer Switch System
スポンサーリンク
概要
- 論文の詳細を見る
More and more utility companies provide dual power feeders as a premier service of high power quality and reliability. To take advantage of this, the solid-state transfer switch (STS) is adopted to protect the sensitive load against the voltage sag. However, the fast transfer process may cause in-rush current on the load-side transformer due to the resulting DC-offset in its magnetic flux as the load-transfer is completed. The in-rush current can reach 2∼6 p.u. and it may trigger the over-current protections on the power feeder. This paper develops a flux estimation scheme and a thyristor gating scheme based on the impulse commutation bridge STS (ICBSTS) to minimize the DC-offset on the magnetic flux. By sensing the line voltages of both feeders, the flux estimator can predict the peak transient flux linkage at the moment of load-transfer and evaluate a suitable moment for the transfer to minimize the in-rush current. Laboratory test results are presented to validate the performance of the proposed system.
- 社団法人 電気学会の論文
- 2008-04-01
著者
-
Cheng Po-tai
Center For Advanced Power Technologies (capt) Department Of Electrical Engineering National Tsing Hu
-
Cheng Po-tai
Center For Advanced Power Technologies Department Of Electrical Engineering National Tsing Hua Unive
-
CHEN Yu-Hsing
Center for Advanced Power Technologies, Department of Electrical Engineering, National Tsing Hua Uni
-
Chen Yu-hsing
Center For Advanced Power Technologies Department Of Electrical Engineering National Tsing Hua Unive
-
Chen Yu-hsing
Center For Advanced Power Technologies Department Of Electrical Engineering National Tsing Hua Unive
-
Chen Yu-Hsing
Center for Advanced Power Technologies (CAPT) Department of Electrical Engineering National Tsing Hua University
関連論文
- Design and Implementation of Coaxial Winding Transformers for Isolated DC-DC Converters
- An Integrated Pulse Width Modulator/Dead-time Generator with Improved Output Voltage Precision
- An In-Rush Current Suppression Technique for the Solid-State Transfer Switch System
- A Smooth Ride : Inrush Mitigation Techniques for Voltage Sag Ride-Through Solutions of Critical Loads
- Design and Implementation of an Impulse Commutated Solid-State Transfer Switch
- Analysis of Harmonic Damping Effect of the Distributed Active Filter System
- Smart Grid Development in Taiwan