Inspec keywords: PWM invertors; photovoltaic power systems; distributed power generation; maximum power point trackers; power generation control; power grids

Other keywords: modulation index shift scheme; voltage positive feedback method; voltage shift rate synchronisation; multiinverter grid-connected PV systems; VPF method; superposition algorithm; pulse-width modulation control principle; voltage magnitude reduction; variable PV voltage; multiple-PV inverters; self-varying positive feedback gain; multiinverter grid-connected photovoltaic systems; point-of-common coupling; maximum power point tracking control; improved voltage shift islanding detection method; islanding condition; active power conditions; nondetection zone minimization

Subjects: Solar power stations and photovoltaic power systems; Distributed power generation; Control of electric power systems