Ahmad Muhyiddin Yusof
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Preferred name
Ahmad Muhyiddin Yusof
Official Name
Ahmad Muhyiddin, Yusof
Alternative Name
Yusof, Ahmad Muhyiddin
Yusof, Ahmad Muhyiddin Bin
Main Affiliation
Scopus Author ID
58332127000

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  • Publication
    Modified Sinusoidal PWM Technique for Low Loss Inverter Application
    ( 2021-01-01)
    Muhammad Zaid Aihsan
    ;
    Hariz M.F.
    ;
    Wan Azani Wan Mustafa
    ;
    Ahmad Muhyiddin Yusof
    ;
    Hasliza A Rahim @ Samsuddin
    ;
    Alkhayyat A.
    The efficiency of the main system is the most important concern for all power electronic engineers when designing power electronic converters. Normally there is a high switching state in conventional full-bridge inverter with sinusoidal pulse width modulation (SPWM), resulting in greater switching loss. This problem usually causes the efficiency of the inverter to fall to a certain level, resulting in poor inverter performance. In this study, the switching strategy can be changed to reduce the switching status while maintaining the original inverter frequency. The main goal of this research to reduce the switching loss of the inverter by modified the conventional SPWM to become a lesser switching state without losing the nature characteristic of the SPWM switching technique. The modified SPWM will be compared to the conventional SPWM in terms of switching loss and total harmonic distortion performance.
      2
  • Publication
    Comparative investigations on different types of inductors in single-phase inverter
    ( 2021-12-01)
    Muhammad Zaid Aihsan
    ;
    Ahmad Muhyiddin Yusof
    ;
    Hasliza A Rahim @ Samsuddin
    ;
    Baharuddin Ismail
    ;
    Wan Azani Wan Mustafa
    ;
    Mohd Saifizi Saidon
    ;
    Muhammad Izuan Fahmi Romli
    This article organized in two sections where it compares the performance of single-phase inverters using various types of inductors with differences modulation technique of pulse width modulation (PWM). Not all inductors perform the same function, even the inductance value is the same. The study will investigate the capability of each inductor on its performance to convert the unfiltered AC voltage into filtered sinusoidal AC voltage. The drum core and toroidal core inductors were used in this investigation. For both inductors, the performance will be analyzed based on Bipolar and Unipolar switching schemes in a single unit H-bridge circuit. The validation of results are through experimental assessment only and it will be evaluating the shape of sinusoidal AC voltage and the content of total harmonics distortion in the AC voltage for both inductors.
      2  2