Investigation on Multisampling Deadbeat Current Control With Time-Delay Compensation in Grid-Connected Inverter

GARBA ELHASSAN, GARBA ELHASSAN and ZULKIFL, SHAMSUL AIZAM and SOLOMON ZAKWOI ILIYA, SOLOMON ZAKWOI ILIYA and YUNUSA, ZAINAB and MOHAMMED AHMED5, MOHAMMED AHMED5 and HAYAT KHAN, MUBASHIR and RONALD JACKSON, RONALD JACKSON (2023) Investigation on Multisampling Deadbeat Current Control With Time-Delay Compensation in Grid-Connected Inverter. Digital Object Identifie, 11. pp. 12444-12458.

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The control of voltage source converters (VSCs) is now implemented on digital microprocessors. This digitalization has the drawback of time delay in the control loop. The goal of this research work was to investigate improvements that can be obtained from the combination of model-based and model-free time-delay compensation approaches. Deadbeat control (DBC) from model-based techniques and the method of moving the control variable’s sampling instants, or the pulse-width modulation (PWM) updating instants, from model-free time-delay compensation techniques, were put together as the proposed new method of time-delay compensation in this study. These controllers were thoroughly examined in terms of control algorithm design, system stability analysis, and sensitivity analysis of plant parameter perturbations. In addition, thorough Simulink-based computer simulations were conducted in this work to assess the performance of each controller. The proposed method compensated about 80 µs as compared with the time delay compensated by the conventional single-sampling method. This research work was limited to simulations only; hence, conducting experiments to further validate this research work could be a direction for further research.

Item Type: Article
Uncontrolled Keywords: Current controllers, DB control time delay, grid-connected converters
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Engineering
Depositing User: Mr. Mohamad Zulkhibri Rahmad
Date Deposited: 13 Sep 2023 07:23
Last Modified: 13 Sep 2023 07:23

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