Abstract

In this paper, the study of optimal coordination of directional over-current relays is proposed. The relay coordination problem is non-linear. It typically consists of two groups of control variables (Time Dial Setting: TDS and Plug Setting: PS). The objective function used is the operation time of the main relay in all considered fault cases. The differential evolution (DE) is employed to solve for solutions of optimal relay coordination. It is a stochastic model based on finding the answer from some random method. This algorithm was originally developed from Genetic Algorithm (GA), but the structure is simpler. A 9-bus test system was employed as the test system. The results showed that the DE can find the best solution for optimal relay coordination problems when comparing with those of GA and BFGS.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.