access icon free Optimisation method to find the best switch set topology for reconfiguration of photovoltaic panels

This study presents an optimisation method to find the best switch set (SWS) topology for reconfiguration of photovoltaic (PV) panels. An approach based on particle swarm optimisation is used to find the optimised topology. In the optimisation, an objective function is defined, in which a minimum number of switches and maximum capability for realising different desired configurations are taken into account. Although the result is a SWS with the capability of reconfiguring PV panels in different series–parallel configurations, the algorithm can be extended for deriving different SWSs aimed to realise other configurations. Some experiments were carried out to validate the proposed approach. The results confirm that the optimised SWS not only can implement different desirable configurations with a minimum number of switches but also able to overcome different abnormal conditions by a suitable switching.

Inspec keywords: set theory; solar cells; particle swarm optimisation

Other keywords: SWS; photovoltaic panel reconfiguration; photovoltaic reconfiguration; particle swarm optimisation; optimisation method; objective function; series–parallel configurations; PV panel reconfiguration; switch set topology

Subjects: Algebra, set theory, and graph theory; Combinatorial mathematics; Solar cells and arrays; Photoelectric conversion; solar cells and arrays; Optimisation techniques

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