Optimal Distributed Generation and Reactive Power Allocation in Electrical Distribution Systems

Abstract— Optimal and simultaneous siting and sizing of distributed generators and capacitor banks in distribution systems have attracted a lot of attention from distribution companies. The placement and capacity of these devices have direct effects on the system’s performance. This paper p resents a model for the simultaneous allocation of capacitor banks and distributed generation, which takes into account the stochastic nature of distributed generation. To solve the model presented, we propose an efficient hybrid method based on Tabu search and genetic algorithms. The hybrid method is applied t o a well-known system in literature. DG can offer several benefits t o t he system, however, its installation is subject to the availability and geographical location of primary energy sources. The benefits obtained with DG are not only r elated to the technical level (loss reduction, voltage control, current flow reduction in the branches, improved quality of power supply, but also t o t he environmental sphere, since the reduction of costs and technological advances in power electronics, communication systems, control and automation allow f or the use of renewable energy sources which pollute less than conventional generators. < final year projects >