Title :
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
fDate :
Aug. 30 2011-Sept. 1 2011
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);
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
