Title :
A control strategy for the grid-connected PV system using a Z-source inverter
Author :
Park, Jong-Hyoung ; Kim, Heung-Geun ; Chun, Tae-Won ; Nho, Eui-Cheol ; Shin, Hyun-Jin ; Chi, Min-Hun
Author_Institution :
Kyungpook Nat. Univ., Daegu
Abstract :
This paper presents the MPPT (maximum power point tracking) and PCC (point of common coupling) current control strategy for grid-connected PV system using the ZSI (Z-source inverter). Several requirements of an inverter for PV-system and the shoot-through effect of the ZSI are analyzed. And then, the MPPT algorithm and PWM method for the ZSI are suggested. The feasibility is studied through the simulation and experiment with 3 kW system.
Keywords :
electric current control; invertors; photovoltaic power systems; power grids; PCC current control; Z-source inverter; grid-connected photovoltaic system; maximum power point tracking; point of common coupling; power 3 kW; Control systems; Current control; Fuel cells; Impedance; Pulse width modulation; Pulse width modulation inverters; Renewable energy resources; Virtual colonoscopy; Voltage; Wind energy generation; MPPT; PV-system; Z-source; microgird;
Conference_Titel :
Power and Energy Conference, 2008. PECon 2008. IEEE 2nd International
Conference_Location :
Johor Bahru
Print_ISBN :
978-1-4244-2404-7
Electronic_ISBN :
978-1-4244-2405-4
DOI :
10.1109/PECON.2008.4762609
