Improved fractional open circuit voltage MPPT methods for PV systems

Dmitry Baimel; Saad Tapuchi; Yoash Levron; Juri Belikov

doi:10.3390/electronics8030321

Improved fractional open circuit voltage MPPT methods for PV systems

Dmitry Baimel, Saad Tapuchi, Yoash Levron, Juri Belikov

Electrical and Computer Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

This paper proposes two new Maximum Power Point Tracking (MPPT) methods which improve the conventional Fractional Open Circuit Voltage (FOCV) method. The main novelty is a switched semi-pilot cell that is used for measuring the open-circuit voltage. In the first method this voltage is measured on the semi-pilot cell located at the edge of PV panel. During the measurement the semi-pilot cell is disconnected from the panel by a pair of transistors, and bypassed by a diode. In the second Semi-Pilot Panel method the open circuit voltage is measured on a pilot panel in a large PV system. The proposed methods are validated using simulations and experiments. It is shown that both methods can accurately estimate the maximum power point voltage, and hence improve the system efficiency.

Original language	American English
Article number	321
Journal	Electronics (Switzerland)
Volume	8
Issue number	3
DOIs	https://doi.org/10.3390/electronics8030321
State	Published - 1 Mar 2019

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Fractional open circuit voltage
Maximum power point tracking
Renewable energy

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Signal Processing
Hardware and Architecture
Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.3390/electronics8030321

Cite this

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title = "Improved fractional open circuit voltage MPPT methods for PV systems",

abstract = "This paper proposes two new Maximum Power Point Tracking (MPPT) methods which improve the conventional Fractional Open Circuit Voltage (FOCV) method. The main novelty is a switched semi-pilot cell that is used for measuring the open-circuit voltage. In the first method this voltage is measured on the semi-pilot cell located at the edge of PV panel. During the measurement the semi-pilot cell is disconnected from the panel by a pair of transistors, and bypassed by a diode. In the second Semi-Pilot Panel method the open circuit voltage is measured on a pilot panel in a large PV system. The proposed methods are validated using simulations and experiments. It is shown that both methods can accurately estimate the maximum power point voltage, and hence improve the system efficiency.",

keywords = "Fractional open circuit voltage, Maximum power point tracking, Renewable energy",

author = "Dmitry Baimel and Saad Tapuchi and Yoash Levron and Juri Belikov",

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language = "American English",

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T1 - Improved fractional open circuit voltage MPPT methods for PV systems

AU - Baimel, Dmitry

AU - Tapuchi, Saad

AU - Levron, Yoash

AU - Belikov, Juri

PY - 2019/3/1

Y1 - 2019/3/1

N2 - This paper proposes two new Maximum Power Point Tracking (MPPT) methods which improve the conventional Fractional Open Circuit Voltage (FOCV) method. The main novelty is a switched semi-pilot cell that is used for measuring the open-circuit voltage. In the first method this voltage is measured on the semi-pilot cell located at the edge of PV panel. During the measurement the semi-pilot cell is disconnected from the panel by a pair of transistors, and bypassed by a diode. In the second Semi-Pilot Panel method the open circuit voltage is measured on a pilot panel in a large PV system. The proposed methods are validated using simulations and experiments. It is shown that both methods can accurately estimate the maximum power point voltage, and hence improve the system efficiency.

AB - This paper proposes two new Maximum Power Point Tracking (MPPT) methods which improve the conventional Fractional Open Circuit Voltage (FOCV) method. The main novelty is a switched semi-pilot cell that is used for measuring the open-circuit voltage. In the first method this voltage is measured on the semi-pilot cell located at the edge of PV panel. During the measurement the semi-pilot cell is disconnected from the panel by a pair of transistors, and bypassed by a diode. In the second Semi-Pilot Panel method the open circuit voltage is measured on a pilot panel in a large PV system. The proposed methods are validated using simulations and experiments. It is shown that both methods can accurately estimate the maximum power point voltage, and hence improve the system efficiency.

KW - Fractional open circuit voltage

KW - Maximum power point tracking

KW - Renewable energy

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U2 - 10.3390/electronics8030321

DO - 10.3390/electronics8030321

M3 - Article

SN - 2079-9292

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JO - Electronics (Switzerland)

JF - Electronics (Switzerland)

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ER -

Improved fractional open circuit voltage MPPT methods for PV systems

Abstract

UN SDGs

Keywords

All Science Journal Classification (ASJC) codes

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