Inspec keywords: power grids; power transformers; energy storage; particle swarm optimisation; photovoltaic power systems

Other keywords: energy routing strategy; grid-connected photovoltaic; energy storage device; power electronic transformer; improved particle swarm algorithm; bi-level programming model; improved particle swarm optimisation algorithm; bi-directional energy flow

Subjects: Transformers and reactors; Solar power stations and photovoltaic power systems; Optimisation techniques