Fast converging digital MPPT control for photovoltaic (PV) applications

Author

Patel, S. ; Shireen, W.

fYear

2011

Firstpage

1

Lastpage

6

Abstract

In order to compensate for their cost, photovoltaic (PV) systems need to be operated in a manner that ensures the optimum use of the available solar energy. This is achieved by means of a Power Conditioning Unit (PCU) which in most cases consists of a dc-dc converter connected between the PV source and the load. The role of the dc-dc converter control is to ensure operation of the PV array at its maximum power point (MPP) regardless of atmospheric conditions and load variations. This thesis presents a fast converging digital maximum power point tracking (MPPT) control that is based on analysis of the PV module characteristics and determination of the short circuit current. The proposed method allows convergence to the MPP in a single step. This method was simulated in Simulink and implemented using DSP microcontroller, TMS320F28035.

Keywords

digital control; maximum power point trackers; photovoltaic power systems; power generation control; DC-DC converter control; DSP microcontroller; PCU; PV applications; PV array; PV module characteristics; Simulink; TMS320F28035; cost compensation; digital maximum power point tracking control; fast-converging digital MPPT control; load variations; photovoltaic applications; power conditioning unit; short circuit current; solar energy; Load management; Photovoltaic systems; Pulse width modulation; Radiation effects; Short circuit currents; Sun; Switching circuits; Maximum Power Point Tracking (MPPT); microcontroller; panel characteristics; short circuit current;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2011 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4577-1000-1

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PES.2011.6039717

Filename

6039717