Economic Dispatch Analysis with Metaheuristik at Bali Electricity System

Economic Dispatch Analysis Using Metaheuristics

On the Bali Electricity System

A reliable electrical system with maintained economic value demands that the operation of the electric power system must be optimal, i.e. the generator must be able to meet the load requirements with the minimum cost (Economic Dispatch).  Economic Dispatch is the optimal combination of power generated by all generators in an effort to meet the load with a minimum cost without ignoring existing restrictions.  To determine the optimal combination there are many methods can be used, one of the methods that will be used to solve optimization problems (Economic Dispatch) is Metaheuristic method. Metaheuristic method will be used to resolve Economic Dispatch problems in Bali System.

 In this study, determining the optimal combination of each operating plant (Economic Dispatch) will use the Metaheuristic method.  Before calculating using the Metaheuristic method, first calculate the input-output characteristics of each generating unit, the combined characteristics of the generator bus (composite generation fuel cost), the characteristics of the interconnection contract coefficient losses (matrix B). Then, the results of the calculation will be used to calculate the allocation of loading with the Metaheuristic method.

 The results of calculations with the Metaheuristic method will be compared with methods that are commonly used.  Simulation results show that the 150 KV electrical system in the Imperialist Competitive Algorithm (ICA) method is able to produce a more optimal generation cost of $ 911.66 / h and active power of 679,869.75 MW when compared to the lambda iteration method of $ 686,986.2 /  h with an active power of 915 MW there is a savings of $ 3.34 / h.

 Keywords : Particle Swarm Optimization, Economic Dispatch, coefficient matrix B