AC train emergency fuzzy logic control using a even driven approach

Abstract

The paper proposes a fast, versatile and easy-to-use technique for control of train despatch schedules in an electrified railway system for improving its performance following outage of the station transformer. Using the technique of event driven approach and fuzzy logic, it is shown how a set of performance indices which represent the requirements on passengers, headway, regularity, and electrical loading, are optimized during rescheduling following such outage. Without the proposed emergency control technique, the railway system under consideration exhibits unstable buildups of unserved passengers/ transformer overloads. Such buildups severely restrict the system's capabilities to return to normal operation.