A Real Maximum Power Point Tracking Method for Mismatching Compensation in PV Array Under Partially Shaded Conditions

Author

Young-Hyok Ji ; Doo-Yong Jung ; Jun-Gu Kim ; Jae-Hyung Kim ; Tae-Won Lee ; Chung-Yuen Won

Author_Institution

Grad. Sch. of Photovoltaic Syst. Eng., Sungkyunkwan Univ., Suwon, South Korea

Volume

26

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1001

Lastpage

1009

Abstract

Conventional popular maximum power point tracking (MPPT) methods are effective under uniform solar irradiance. However, under solar irradiance mismatching conditions [partially shaded conditions (PSCs)], these MPPTs can fail for real MPPT (RMPPT), because multiple local maxima can be exhibited on the power-voltage characteristic curve. Although some researchers have worked on RMPPT under partial shading conditions, the methods have some drawbacks in terms of complexity and requirements for additional circuits, etc. In this paper, a novel MPPT method capable of RMPPT under PSCs is proposed. The performance of the proposed MPPT method is analyzed according to the RMPP position and is verified by simulation and experimental results.

Keywords

compensation; maximum power point trackers; photovoltaic power systems; MPPT methods; PV array; maximum power point tracking method; mismatching compensation; multiple local maxima; photovoltaic power generation systems; power-voltage characteristic curve; solar irradiance; solar irradiance mismatching conditions; Analytical models; Arrays; Mathematical model; Photovoltaic cells; Photovoltaic systems; Power generation; Tracking; Photovoltaic (PV) power generation systems; maximum power point tracking (MPPT); mismatching problem; partial shading condition (PSC);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2089537

Filename

5607314