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Azrita Alias

As seen in: Scientific Research Publishing (SCIRP)
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Articles

Design and Implementation of a Closed-Loop Single-Phase Transistor-Clamped H-Bridge Multilevel Inverter Using FPGA

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By Azrita Alias, Wahidah Abd Halim, Maaspaliza Azri
| Scientific Research Publishing (SCIRP)
1. Introduction The inverter is a power electronic device which converts DC power to AC power. Inverters are widely used in many types of applications, including renewable energies—especially photovoltaic (PV) and fuel cells [1] [2]—adjustable-speed drives [3], uninterruptible power supplies (UPS) [4], and more.
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Comparative Study of Sinusoidal PWM Strategies in Cascaded Multilevel Inverters

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By Azrita Alias, Jurifa Mat Lazi, Muhammad Syazreen Samsudin, Fazlli Patkar
| Scientific Research Publishing (SCIRP)
This paper presents a comparative study of four Sinusoidal Pulse Width Modulation (SPWM) strategies Phase Disposition (PD-PWM), Phase Opposition Disposition (POD-PWM), Alternate Phase Opposition Disposition (APOD-PWM), and a Modified SPWM applied to Cascaded H-Bridge Multilevel Inverter (CHMI) systems. MATLAB/Simulink is used to simulate both 5-level and 11-level CHMI configurations, focusing on output voltage quality and total harmonic distortion (THD) as performance metrics.
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Investigation of Predictive Current Control and Hysterisis Current Control for Induction Motor

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By Zulhani Rasin, Jurifa Mat Lazi, Azrita Alias, Mukhlidi Muskhir
| Scientific Research Publishing (SCIRP)
Investigation of Predictive Current Control and Hysterisis Current Control for Induction Motor () Muhammad Haziq Bin Md Jamal1, Md Hairul Nizam Bin Talib1*, Zulhani Rasin1, Jurifa Mat Lazi1, Azrita Alias1, Mukhlidi Muskhir2 1Fakulti Kejuruteraan Elektrik, Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. 2Faculty of Engineering, Universitas Negeri Padang, Padang, Indonesia.
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