The Role of PSO Meter Placement in Distribution State Estimation

Optimal meter placement with state estimation plays a major role in monitoring and controlling of Distribution System. The objective of this work is to optimize the number of necessary measurements and Remote Terminal Units, subject to the constraints of the system observability requirements for best voltage estimation. A global optimization algorithm and Particle Swam Optimization is proposed to fulfil the requirement. The parameter values are estimated using the Hybrid Artificial Neural Network based state estimation technique of injecting pseudo measurements at un-metered buses. The algorithm is simulated for IEEE and Indian standard bus distribution systems and the results are presented. The effectiveness and flexibility of PSO are demonstrated by validating the results with Mathematical techniques and the effectiveness of estimator. Key-Words: -Branch and Bound technique, Meter Placement, Particle Swarm Optimization, Power Distribution Systems, State Estimation.