Line Differential Protection Modeling with Composite Current and Voltage Signal Comparison Method
Abstract: This paper discusses
the protection system which is the most important part in a power system.
Increased protection system reliability determines to improve the performance
of the entire electrical system. Differential scheme denoted a very reliable
method to secure the protection zone. There have been some studies on this
topic. However, still need further study in order to obtain a better system,
simple and reliable. The resulting model is made in gradually. Each stage is
verified to reduce operational errors. Validation was done using the composite
method of current and voltage signals, and the sigma delta algorithm as the
analog to digital converter. Numerous computing were done to simulate the
differential protection system on the underground cable transmission line 420
kV along the 58.5 km, using Matlab / Simulink. The results showed that the
proposed method is effective enough to minimize the percentage of errors.
Author: Hamzah Eteruddin,
Abdullah Asuhaimi Mohd Zin, Belyamin
Journal Code: jptkomputergg140041
