Cascaded control scheme of grid tied PV inverter

Author

Hafeez Abbasi, Muhammad ; Al-Ohaly, Abdulhameed ; Khan, Yasin ; Hasanien, Hany M.

Author_Institution

Dept. of Electr. Eng., King Saud Univ. Riyadh, Riyadh, Saudi Arabia

fYear

2015

fDate

24-26 March 2015

Firstpage

1

Lastpage

6

Abstract

The high penetration rates of Photovoltaic (PV) systems may impact power quality of the utility grids in some cases. Therefore, a detailed technical study about their effects on the power quality of the utility grid is required. Such study requires a complete modeling of the Grid tied PV system. For this purpose (PSCAD) software was used. This model consists of PV array, DC link capacitor, DC-DC converter, three phase six-pulse inverter, transformer and a utility grid. This paper investigates the cascaded control of grid-tied PV inverter. Cascade controllers scheme is used and to fine tune these PI controllers, Taguchi Approach is used. Simulation results indicates the capability of the PV system to ride through the faults determined by low voltage ride through (LVRT) under various symmetrical faults.

Keywords

PI control; Taguchi methods; cascade control; fault diagnosis; invertors; power grids; power supply quality; power transformers; reliability; solar cell arrays; voltage control; DC link capacitor; DC-DC converter; LVRT; PI controller; Taguchi approach; grid tied PV inverter cascaded control scheme; low voltage ride through; photovoltaic array; symmetrical faults; three phase six-pulse inverter; transformer; utility grid power quality; Arrays; Circuit faults; Integrated circuit modeling; Inverters; Maximum power point trackers; PSCAD; Voltage control; Grid Integration; LVRT; MPPT; PSCAD; Photovoltaic; Taguchi Approach;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Congress (IREC), 2015 6th International

Conference_Location

Sousse

Type

conf

DOI

10.1109/IREC.2015.7110868

Filename

7110868