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In this paper, a modification is done in Gravitational Search Algorithm (GSA) where an alpha parameter (α) is modified. This modification is done in order to provide different gravitational constant, G(t) and acceleration (a) to each agent as trying to improve its performance. Then this modified GSA algorithm is tested to see the effectiveness of PID controller in finding the value of KP, KI and K...
Train operation energy consumption occupies a large proportion of whole rail transport resource consumption. Aiming at improving energy utilization, current research is mainly about saving energy while security and time are limiting conditions. However, actual train operation is a complex process which has strict requirements on safety, energy consumption, precise parking and some other factors. This...
This paper investigates the performance of a dynamic heterogeneous particle swarm optimizer (dHPSO) on dynamic unconstrained optimization problems. The results are compared to that of charged and quantum particle swarms, specifically designed for optimization in dynamic environments. It is shown that dHPSO possesses the ability to manage the diversity of the swarm dynamically, allowing it to overcome...
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