Browsing Researchers by Author "Omar, Aliman"

Now showing items 1-11 of 11

    • Comparion methods for determining generators shares in loads, line flows and losses for transmission open access 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daud; Surya, Hardi Amrin; Mohamad Suhaizal, Abu Hassan (Universiti Teknologi Mara (UiTM), 2008-06-04)
      In transmission open access, determining generators' share in loads, line flows and losses have become an important issue, due to the complexity of electrical transmission system, it is not straightforward to map out tin ...

    • Computer designed solar concentrator 

      Omar, Aliman; Ismail, Daut; Muzamir, Isa; Mohd Rafi, Adzman (International Association of Science and Technology for Development (IASTED)/ACTA Press, 2007)
      This paper discusses a computer designed optical concentrator, which is providing efficient solar energy transfer to a Stirling Engine. The receiver can make line focusing onto the absorber of Stirling engine located at ...

    • Determination of reactive power flow in deregulated transmission system 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut, Prof. Dr. (Institut Teknologi Brunei, 2008-11-03)
      The electricity industry throughout the world, which has long been dominated by vertically integrated utilities, is undergoing enormous changes. Deregulation has necessitates the decomposition of three components of electric ...

    • Diagnosis of MV oil filled cable terminations with X-ray imaging and infrared (IR) thermography 

      Mohd Rafi, Adzman; Ismail, Daut, Prof. Dr.; Muzamir, Isa; Baharuddin, Ismail; Omar, Aliman; Lehtonen, Matti; Hyvonen, Petri (Science Publications, 2007)
      A main purpose of doing a diagnostic in cable system including its accessories such as impregnated paper insulated oil filled cable termination is to predict failure before they occur. Those cable and accessories, which ...

    • Optimal allocation and sizing of DG in distribution system using evolutionary programming technique 

      Siti Rafidah, Abdul Rahim; Titik Khawa, Abdul Rahman; Ismail, Musirin; Syahrul Ashikin, Azmi; Zainuddin, Mat Isa; Omar, Aliman; Ismail, Daut, Prof. Dr. (Universiti Teknologi MARA (UiTM), 2008-06-04)
      In recent years, distributed generation (DG) installation has shown an increasing growth in the distribution networks around the world due to the raise in promotion towards utilization of renewable energy resources and ...

    • Power flow tracing via modified proportional tree method 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut, Prof. Dr.; Mohd Suhaizal, Abu Hassan (Universiti Malaysia Perlis (UniMAP), 2008-03-08)
      Tracing the flow of electricity becomes an important issue under deregulation system. It is more complicated compared to other fields due to norlinear nature of power flow and specific properties of electricity. Since the ...

    • Simplification of sun tracking mode to gain high concentration solar energy 

      Omar, Aliman; Ismail, Daut; Muzamir, Isa; Mohd Rafi, Adzman (Science Publications, 2007)
      Power conversion from solar thermal energy to electrical energy is still very cost-intensive. Serious effort has to be given in the development of the concentrator or heliostat structure expenditure which contributing the ...

    • Tracing generators' output in transmission open access 

      Mohd Herwan, Sulaiman; Omar, Aliman; Mohd Wazir, Mustafa; Ismail, Daut (Institute of Electrical and Electronics Engineering (IEEE), 2007-12)
      Over the past few years, the electric power utility industries around the world have experienced a strong drive towards deregulation. Based on the experience of deregulation of the communication, natural gas and airline ...

    • Tracing reactive power flow and loss in electric power systems 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut; Surya Hardi, Amrin; Mohamad Suhaizal, Abu Hassan (Regional Energy Resources Information Center (RERIC), Asian Institute of Technology (AIT), 2009-03)
      This paper suggests a systematic method to trace the reactive power flow and loss named as Proportional Tree Method (PTM). From the power flow solution, the test system is modeled conceptually like a tree, where the reactive ...

    • Tracing real and reactive power in open access network 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut (Universiti Malaysia Perlis, 2008)
      The main objective of this paper is to present a simple and general methodology for tracing the power output of each generator to the line flows and loads through out the electrical power network. The tracing algorithm is ...

    • Tracking error analysis of a rotation-elevation mode heliostat 

      Omar, Aliman; Ismail, Daut; Muzamir, Isa; Mohd Rafi, Adzman (Science Publications, 2007)
      For the past few years, great efforts have been done in improving the tracking accuracy of a newly proposed rotation-elevation tracking mode heliostat. A special simulation program has been developed to systematically ...