Simulation of a Load-Managing Photovoltaic System

Joseph A. Azzolini; Meng Tao

doi:10.1109/PVSC.2018.8547717

Simulation of a Load-Managing Photovoltaic System

Joseph A. Azzolini, Meng Tao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We proposed and demonstrated a load-managing photovoltaic (PV) system that significantly reduces the levelized cost of electricity over conventional PV systems. Instead of managing the PV power, the system manages the number of loads connected to the PV array throughout the day to maximize the utilization efficiency of available PV power without a conventional maximum power point tracker. The system can also regulate its output voltage without a DC/DC converter. This paper presents a simulation study for a stand-alone load-managing system with direct-coupled ohmic loads. The simulation program can model a load-managing system with a PV array of any size and any number of loads, and outputs the power delivered to the loads. The theoretical utilization efficiency was found to increase with the number of loads being managed and reaches above 99% for a direct-coupled system with just eight ohmic loads. The voltage variation seen by the loads can be reduced to less than ±5% by adjusting the switch points for the loads.

Original language	English (US)
Title of host publication	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1158-1162
Number of pages	5
ISBN (Electronic)	9781538685297
DOIs	https://doi.org/10.1109/PVSC.2018.8547717
State	Published - Nov 26 2018
Event	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States Duration: Jun 10 2018 → Jun 15 2018

Other

Other	7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
Country/Territory	United States
City	Waikoloa Village
Period	6/10/18 → 6/15/18

Keywords

directcoupled system
levelized cost of electricity
load management
maximum power point tracking
photovoltaic system

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/PVSC.2018.8547717

Cite this

Simulation of a Load-Managing Photovoltaic System. / Azzolini, Joseph A.; Tao, Meng.

2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC. Institute of Electrical and Electronics Engineers Inc., 2018. p. 1158-1162 8547717.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Azzolini, JA & Tao, M 2018, Simulation of a Load-Managing Photovoltaic System. in 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC., 8547717, Institute of Electrical and Electronics Engineers Inc., pp. 1158-1162, 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, Waikoloa Village, United States, 6/10/18. https://doi.org/10.1109/PVSC.2018.8547717

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AB - We proposed and demonstrated a load-managing photovoltaic (PV) system that significantly reduces the levelized cost of electricity over conventional PV systems. Instead of managing the PV power, the system manages the number of loads connected to the PV array throughout the day to maximize the utilization efficiency of available PV power without a conventional maximum power point tracker. The system can also regulate its output voltage without a DC/DC converter. This paper presents a simulation study for a stand-alone load-managing system with direct-coupled ohmic loads. The simulation program can model a load-managing system with a PV array of any size and any number of loads, and outputs the power delivered to the loads. The theoretical utilization efficiency was found to increase with the number of loads being managed and reaches above 99% for a direct-coupled system with just eight ohmic loads. The voltage variation seen by the loads can be reduced to less than ±5% by adjusting the switch points for the loads.

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Simulation of a Load-Managing Photovoltaic System

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Keywords

ASJC Scopus subject areas

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