access icon free Optimal planning and operation of static VAR compensators in a distribution system with non-linear loads

This study presents an innovative design for the optimal sizing, placement, and dispatch approach of distribution static var compensators (D-SVCs) in a radial power distribution system to improve the technical and economic aspects of the grid. The approach incorporates the total harmonic distortion (THD) effects into the assessment with the presence of non-linear loads. A multi-state particle swarm optimisation algorithm is also proposed, at first to select the placement and size and then to select the dispatch strategy of D-SVCs. Three IEEE test systems were used for the case study to show the efficacy of the method. The results reveal that the approach is viable, and it determines the cases where the highest savings were achievable fulfilling the grid voltage and THD constraints.

Inspec keywords: power grids; static VAr compensators; power distribution planning; particle swarm optimisation; load dispatching

Other keywords: optimal sizing design; grid voltage; radial power distribution system; IEEE test systems; dispatch approach; optimal planning; total harmonic distortion; nonlinear loads; distribution static VAR compensators; THD effects; D-SVCs; multistate particle swarm optimisation algorithm

Subjects: Optimisation techniques; Other power apparatus and electric machines; Power system planning and layout; Distribution networks; Power system management, operation and economics

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