Ground Fault Detection for Flexible High Voltage Power Systems

2011 ◽  
Vol 4 (1) ◽  
pp. 185-197 ◽  
Author(s):  
Aravind Mathsyaraja
Keyword(s):  
Fault Detection ◽  
Power Systems ◽  
High Voltage ◽  
Ground Fault ◽  
Ground Fault Detection

Onboard Energy Storage System: Ground Fault Detection and Protection

2017 ◽  
Author(s):  
Jason Krause ◽  
John McPhee
Keyword(s):  
Energy Storage ◽  
Fault Detection ◽  
High Voltage ◽  
Lithium Batteries ◽  
Storage System ◽  
Energy Storage System ◽  
Alternative Methods ◽  
Ground Fault ◽  
Fault Currents ◽  
Ground Fault Detection

Several Authorities are procuring Hybrid Streetcars with OESS. The energy storage system needs to be protected from ground faults, external and internal to the vehicle. A Hybrid Streetcar has an OESS consisting of either Lithium Batteries or super capacitors, with an OESS converter connected to, or integrated with, the Traction Inverter. During a ground fault of the high voltage circuit, the freewheeling diode in an OESS charger creates a fault path between the energy storage elements and ground. Typical vehicle designs use a fuse for catastrophic protection, depending on the vehicle ground fault scheme for detection and protection. The vehicle’s primary ground fault detection device is an HSCB, usually connected between the shop switch and traction inverter; the auxiliary inverter is typically protected using a fuse. An HSCB is able to protect typical fault currents seen within the traction chain, but is not designed for OESS fault currents. If a fault occurs the fuse for the catastrophic protection of the OESS will blow before the HSCB will trip, potentially damaging equipment, making the vehicle inoperable. This paper compares alternative methods which can be deployed to detect and protect the OESS from a ground fault.

A data-driven ground fault detection and isolation method for main circuit in railway electrical traction system

2019 ◽  
Vol 87 ◽  
pp. 264-271 ◽  
Author(s):  
Zhiwen Chen ◽  
Xueming Li ◽  
Chao Yang ◽  
Tao Peng ◽  
Chunhua Yang ◽  
...  
Keyword(s):  
Fault Detection ◽  
Fault Detection And Isolation ◽  
Data Driven ◽  
Isolation Method ◽  
Ground Fault ◽  
Traction System ◽  
Ground Fault Detection

scholarly journals Voltage Correlation based Single Pole-to-Ground Fault Detection of MMC-HVDC Transmission Line

IEEE Access ◽  
2020 ◽  
pp. 1-1
Author(s):  
Na An ◽  
Hongchun Shu ◽  
Bo Yang ◽  
Pulin Cao ◽  
Jian Song ◽  
...  
Keyword(s):  
Fault Detection ◽  
Transmission Line ◽  
Hvdc Transmission ◽  
Ground Fault ◽  
Ground Fault Detection

Coordination-Free Ground-Fault Detection for Mine Distribution Systems

1985 ◽  
Vol IA-21 (1) ◽  
pp. 162-169 ◽  
Author(s):  
Lloyd A. Morley ◽  
Joseph A. Martarano ◽  
Frederick C. Trutt
Keyword(s):  
Fault Detection ◽  
Distribution Systems ◽  
Ground Fault ◽  
Ground Fault Detection
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