An Efficient Maximum Power Point Tracking Algorithm for Photovoltaic Arrays under Partial Shading Conditions

被引：0

作者：

Ahmad, Jawad ^{[1
]}

Spertino, F. ^{[1
]}

Di Leo, P. ^{[1
]}

Ciocia, A. ^{[1
]}

机构：

[1] Politecn Torino, Dept Energy, Turin, Italy

来源：

2016 IEEE INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (PEMC) | 2016年

关键词：

Maximum power point tracking; partial shading; local peak; global peak; perturb and observe; PV SYSTEMS; SCHEME;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Various peaks in the Power vs. Voltage (P-V) characteristic curve of Photovoltaic (PV) arrays appear due to the effects of partial shading. Conventional Maximum Power Point Trackers (MPPTs) may be unable to track the Global Peak (GP) among the Local Peaks (LP). For tracking the GP under partial shading conditions it is important to develop special MPPTs. In commercially available MPPTs, blind scanning of the P-V curve is performed in order to find the GP. This type of scanning takes various seconds during which the array is not operated at the MPP. In this paper an MPPT algorithm is proposed which quickly takes the operating point of a PV to the GP under uniform and partial shading conditions. The presence of partial shading and the number of peaks is determined from the operating voltage of the modules. The voltage at which the peaks in the P-V curve are located is also determined from the module voltages

引用

页码：322 / 327

页数：6

共 12 条

[1]

Ahmad J, 2015, INT CONF SMART GR C, P7, DOI 10.1109/ICSGCE.2015.7454261

[2]

[Anonymous], IEEE T IND ELECT

[3]

Bidram Ali., 2012, IEEE Journal of Photovoltaic's, V2

[4] Global MPPT Scheme for Photovoltaic String Inverters Based on Restricted Voltage Window Search Algorithm [J].