A New Efficient Topology of Single-Phase Five-level Inverter for PV System

This paper presents the design, simulation, and implementation of a new single-phase five-level inverter, for photovoltaic systems, with a reduced number of power switches and fewer gate-drivers power supply. This multilevel inverter consists of a high step-up DC-DC converter, a switched-capacitor c...

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Bibliographic Details
Published in:International journal of engineering and technology innovation 2018-10, Vol.8 (4), p.241
Main Authors: Ayoub Nouaiti, Abdallah Saad, Mesbahi, Abdelouahed, Khafallah, Mohamed
Format: Article
Language:English
Subjects:
Alternating current
Electric converters
Electric potential
Harmonics
Induction motors
Inverters
Maximum power tracking
Photovoltaic cells
Power supplies
Pulse duration modulation
Solar cells
Solar panels
Switches
Topology
Voltage converters (DC to DC)
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Summary:This paper presents the design, simulation, and implementation of a new single-phase five-level inverter, for photovoltaic systems, with a reduced number of power switches and fewer gate-drivers power supply. This multilevel inverter consists of a high step-up DC-DC converter, a switched-capacitor converter, and a full bridge converter. The proposed topology is used to deliver optimal AC voltage and current with fewer harmonics to the loads by controlling the high step-up DC-DC converter with a small duty cycle. A prototype of a 200W rated power feeding an inductive load from solar panels is tested by simulation and experiment. A maximum power point tracking method and a pulse width modulation technique are presented and evaluated under normalized criteria for voltage, frequency, and total harmonics distortion (THD). The experimental results show that the proposed multi-level inverter is an efficient converter to supply power energy from solar panels to industrial machines such as single phase induction motors.
ISSN:2223-5329
2226-809X