Browsing Ismail Daut, Prof. Dr. by Author "Rosnazri, Ali"

Now showing items 1-20 of 22

    • A 5-level multilevel inverter using LM350 voltage regulator IC 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib; Noor Shahida, Jamoshid (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents a 5-level multilevel inverter for low power applications that not exceeding 30W using the common LM350 voltage regulator IC. A microcontroller with appropriate program is used to control on the biasing ...

    • An alternative approach to solar and grid-connected hybrid electricity for homes and buildings in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Prof. Madya Dr.; Muhammad Irwanto, Misrun; Surya, Hardi (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents the proposal of a solar and grid-connected hybrid electricity system for homes and also buildings. A new concept of using a DC motor and synchronous generator as an electromechanical inverter is ...

    • Design of a single-phase rectifier with improved power factor and low THD using boost converter technique 

      Ismail, Daut; Rosnazri, Ali; Soib, Taib (Science Publications, 2006)
      The method of using Boost type of converter was proposed for a 300W single-phase rectifier in this paper. By designing the necessary techniques and methodology, the overall Power Factor (PF) and Total Harmonic Distortion ...

    • Design of high-side MOSFET driver using discrete components for 24V operation 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Noor Shahida, Jamoshid; Abdul Rahim, Abd Razak (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents the design of a high-side N-channel MOSFET driver using discrete components for 24Vdc operation. Special level shifting technique is used to increase the gate voltage higher than the supply voltage. ...

    • Effect of different size of rotor bars on induction motor efficiency 

      Pungut, Ibrahim; Ismail, Daut, Prof. dr.; Rosnazri, Ali; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Mastika, Abdullah (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Efficiency is the main consideration in designing of any equipment. In an induction motor, there are many parameters that could affect the motor efficiency. One of them is the size of rotor bar, that contribute to the rotor ...

    • Effect of solar irradiance and temperature on photovoltaic module electrical characteristics 

      M., Irwanto; Ismail, Daut, Prof. Dr.; Merdang, Sembiring, Dr. Ir.; Rosnazri, Ali; S., Champakeow; S., Shema (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The electrical characteristics of photovoltaic (PV) module are dependent on solar irradiance and temperature. It consists of short circuit current, open circuit voltage, maximum power, fill factor and efficiency. This ...

    • The effects of harmonic components on transformer losses of sinusoidal source supplying non-linear loads 

      Ismail, Daut; Syafruddin, Hasan; Rosnazri, Ali; Samila, Mat Zali; Haziah, Abd Hamid (Science Publications, 2006)
      An important consideration when evaluating the impact of harmonics is their effect on power system component and loads. Sinusoidalare major components in power systems. The increased losses due to harmonic distortion can ...

    • Harmonic performance of single phase transformer with DC biased 

      Syafruddin, Hasan; Ismail, Daut, Prof. Dr.; Soib, Taib, Prof. Madya Dr.; Dina Maizana, Maiz Ahmad, Ir.; Rosnazri, Ali; Nor Ashbahani, Ashbahani (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Direct current (DC) flowing through the earthed neutrals of transformer windings causes a DC component in magnetizing current. Owing to nonlinearity, the waveform of this current is strongly distorted. A high enough ...

    • High side MOSFET driver design using discrete components for low voltage applications 

      Pungut, Ibrahim; Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Prof. Madya Dr.; Dina Maizana, Maiz Ahmad; Risnidar Chan Bahaudin, Ir. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents the design of a high-side N-channel MOSFET driver using discrete components for low voltage applications, ranging from 3V up to 24Vdc operation. Special level shifting technique is used to increase the ...

    • In-plane flux distribution in the mix 60o- 45o T-joint of three phase transformer core 

      Dina Maizana, Maiz Ahmad; Ismail, Daut, Prof. Dr.; Rosnazri, Ali; Risnidar Chan Bahaudin, Ir.; Muhammad Irwanto (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper describes the result of measurement of inplane flux distribution on 100kVA 3phase distribution transformer assembled with the mix 60o- 45o T-joint and mitred lap corner joint with stagger yoke of 10mm. ...

    • Induction motor behavior due to unsymmetrical and symmetrical faults 

      Surya, Hardi; Ismail, Daut, Prof. Dr.; Risnidar Chan Bahaudin; Muhammad Irwanto; Rosnazri, Ali; Indra, Nisja (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      Voltage sags are generally caused by faults on transmission and/or distribution systems. The voltage produced may be either unsymmetrical or symmetrical, depend on type of faults. Unsymmetrical fault is faults caused by ...

    • Investigation of power factor on harmonic effect due to types of voltage source 

      Risnidar Chan Bahaudin, Ir.; Ismail, Daut, Prof. Dr.; Syafruddin, Hassan; M. I., Yussof; Rosnazri, Ali; Dina Maizana, Maiz Ahmad; Indra, Nisja; Masykur (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper discussed about power factor on harmonic effect due to types of voltage source. Usually, the voltage source is sinusoidal. But in actually, the condition of the load is has voltage sources through the elements ...

    • Investigation of relationships of adjustable speed drive (ASD) and type of voltage source on harmonic characteristics 

      Risnidar Chan Bahaudin, Ir.; Ismail, Daut, Prof. dr.; Surya, Hardi; M. I., Yussof; Rosnazri, Ali; Dina Maizana, Maiz Ahmad; Eddy, Warman; Masykur (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2012-10-16)
      This paper discussed about relationship of ASD and types of voltage source on harmonic characteristics. Usually, the voltage source is sinusoidal. But in actually, the condition of the load is it has voltage sources ...

    • A new proposal to solar and grid-connected hybrid electricity for homes and buildings in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib; Noor Shahida, Jamoshid (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents the proposal of a solar and grid-connected hybrid electricity system for homes and also buildings. A new concept of using a DC motor and synchronous generator as an electromechanical inverter is proposed ...

    • Optimization of photovoltaic module electrical characteristics using genetic algorithm 

      Muhammad Irwanto; Ismail, Daut, Prof. Dr.; Merdang, Sembiring, Dr. Ir.; Rosnazri, Ali; Dina Maizana, Maiz Ahmad (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper presents the optimization of PV module electrical characteristics using genetic algorithm (GA). A mathematical modeling was used to characterize the electrical characteristics of PV module. A 180 W, 30 V, ...

    • Potential of solar radiation and wind speed for photovoltaic and wind power hybrid generation in Perlis, Northern Malaysia 

      Ismail, Daut, Prof. Dr.; Muhammad Irwanto, Misrun; Mohd Irwan, Yusoff; Gomesh Nair, Shasidharan; Rosnazri, Ali; Noor Syafawati, Ahmad (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)
      This paper presents analysis of the solar radiation and wind speed characteristics in Perlis, Northern Malaysia for the year of 2006. The characteristics consist of daily and annual mean solar radiation and wind speed. ...

    • A review on existing and future energy sources for electrical power generation in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib (Elsevier Ltd., 2012-08)
      As the electricity demand is affected by population growth, Malaysia towards an industrialized nation is considering the options for future energy sources for its power generation. Besides the conventional four-fuel mix, ...

    • Simulation of flux distribution and loss calculation at three-phase transformer core with the mix 60o-45o T-joint 

      Dina Maizana, Maiz Ahmad; Ismail, Daut, Prof. Dr.; Rosnazri, Ali; Syafruddin, Hassan; Risnidar Chan Bahaudin, Ir. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper describes the result of simulation of flux distribution on 100kVA 3phase distribution transformer assembled with 23o T-joint and mitred lap corner joint with stagger yoke and limb for one lamination. The ...

    • Solar Powered Water Pump Prototype 

      Ismail, Daut, Prof. Dr.; Zainuddin, Mat Isa; Rosnazri, Ali; Muhammad Irwanto, Misrun; Surya Hardi, Amrin, Ir.; Syafruddin, Hassan, Ir.; Noor Syafawati, Ahmad (Malaysian Invention and Design Society (MINDS), 2010-05-14)
      Photovoltaic (PV) water pumping powered by PV application is one of the most common used throughout the world. However, the solar energy application is not widely been used in Malaysia. Improving in paddy production was ...

    • Solar PV and grid-connected electricity system with multiple modes operation for homes and buildings 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Assoc. Prof. Dr.; Tunku Muhammad Nizar, Tunku Mansur; Nor Hanisah, Baharudin (Praise Worthy Prize S.r.l., 2012-04)
      This paper presents the designed proposal of a solar PV and grid-connected electricity system with multiple modes operation for homes and buildings. It introduces to a more resourceful solar PV system that suits with the ...