Fast synchronization with enhanced switching control for gridtied single-phase square wave inverter using FPGA

Sithananthan, Tharnisha and Abu Bakar, Afarulrazi Abu Bakar and Sannasy, Balarajan and Utomo, Wahyu Mulyo and -, Taufik (2024) Fast synchronization with enhanced switching control for gridtied single-phase square wave inverter using FPGA. International Journal of Power Electronics and Drive Systems (IJPEDS), 15 (2). pp. 1105-1116. ISSN 2088-8694

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Official URL: https://doi.org/10.11591/ijpeds.v15.i2

Abstract

Research on grid synchronization has been conducted worldwide by researchers in conjunction with the development of innovative technologies, such as dedicated short-range communication (DSRC) and cellular vehicleto-everything (C-V2X). However, grid-connected inverters face several challenges, mainly the mismatch in voltage amplitude, frequency, and phase angle, as well as grid voltage disturbance and grid faults. Thus, the control algorithm of this research mainly focused on a half-cycle algorithm to design an enhanced digital switching control for fast synchronization using an FPGA. The control algorithm was developed based on zero-crossing detection (ZCD) and digital phase-locked loop (PLL) modeling techniques using the hardware description language (HDL) and a combination of digital logic blocks in Quartus II software, where the proposed switching was applied using the square-wave switching technique through a 300-watt full-bridge experimental prototype. The performance of the proposed technique was studied, where the total harmonic distortion (THD) for voltage and current resulted in a percentage reduction of 89.29% and 78.05% for voltage and current, respectively, after filter implementation. Also, the resulting signal synchronized in every half cycle and matched the voltage amplitude, frequency, and phase angle of the grid signal in 10 ms.

Item Type:	Article
Uncontrolled Keywords:	Digital phase-locked loop Full-bridge inverter Grid-synchronization Total harmonic distortion Zero-crossing detector
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Electrical and Electronic Engineering > FKEE
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	02 May 2025 07:19
Last Modified:	02 May 2025 07:19
URI:	http://eprints.uthm.edu.my/id/eprint/12276

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