Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11308
Title: Time coordination method for power system protection by evolutionary algorithm
Authors: So, CW
Li, KK
Issue Date: 2000
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on industry applications, 2000, v. 36, no. 5, p. 1235-1240 How to cite?
Journal: IEEE transactions on industry applications 
Abstract: A typical industrial power network may consist of hundreds of pieces of equipment and even more protection relays to protect the system are required. Each protection relay in the power network needs to be coordinated with the relays protecting the adjacent equipment. The overall protection coordination is, thus, very complicated. A new concept of protection coordination by time is introduced in this paper to formulate all the system relays and system equipment operation into a set of optimization equations and constraints. Its purpose is to search for an optimal protection setting to minimize the system disturbance time as well as the time of interruption of the power supply. An evolutionary algorithm is applied as a constraint satisfaction optimization tool to search for the optimal relay setting. This method can find the best protection relay coordination, which cannot be achieved by traditional methods. This is the most significant achievement of the paper.
URI: http://hdl.handle.net/10397/11308
ISSN: 0093-9994
EISSN: 1939-9367
DOI: 10.1109/28.871269
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