Generalized integration duty cycle conversion pulse-width modulation (IPWM) algorithm for multilevel-PV DC-link inverter

Author

Abdalla, I. ; Zhang, Leiqi ; Corda, J.

Author_Institution

Univ. of Leeds, Leeds, UK

fYear

2011

fDate

Aug. 30 2011-Sept. 1 2011

Firstpage

1

Lastpage

10

Abstract

In this paper the 3-level integration PWM is developed to a simplified generalized PWM algorithm which can be used to control higher level photovoltaic (PV) inverters. The proposed algorithm is implemented practically by using eZdsp™ F28335 to control the multi-level DC-link inverter and to maintain the operation of input PV sources at their maximum power point (MPP). The inverter has been tested under different loads and irradiance conditions and the obtained results are verified by comparison with the space-vector PWM (SVPWM) strategy. The introduced algorithm is simple for implementation and produces satisfactory results in the open and closed-loop systems.

Keywords

PWM invertors; closed loop systems; maximum power point trackers; open loop systems; photovoltaic power systems; power generation control; IPWM algorithm; MPPT; SVPWM strategy; closed-loop system; eZdsp F28335 control; integration duty cycle conversion pulse-width modulation algorithm; maximum power point tracker; multilevel-PV DC-link inverter; open-loop system; photovoltaic inverter; space-vector PWM strategy; Harmonic analysis; Inverters; Power harmonic filters; Space vector pulse width modulation; Switches; Modulation strategy; Multi-level converters; Photovoltaic; Pulse Width Modulation (PWM); Voltage Source Inverters (VSI);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on

Conference_Location

Birmingham

Print_ISBN

978-1-61284-167-0

Electronic_ISBN

978-90-75815-15-3

Type

conf

Filename

6020200