Reinforced concrete (RC) jacketing of RC columns is used to increase the load-carrying capacity due to insufficient strength and it improves ductility behavior of the RC columns after jacketing. In this study, strength capacity of the RC columns strengthened with RC jackets was studied. To achieve the goal of this study, the strength capacity of…
The present study addresses the calculation of the deflection of reinforced concrete beams under concentrated load in mid span using different standard such as Russian code and ACI standard, compared with actual beam test result and the result of calculation in computer program ANSYS. By divided element of beam 10 time in bending diagram, then…
Power Electronics research is actively involved in converting the necessary supply power to the receiver at the required voltage and magnitude of power. The design of these power conversion circuits is now more efficient, smaller and less costly for the components due to the study of the technology of the converter circuit system and the…
In the substation, it is very important to receive and provide electricity from the terminal or other substations. The fourth substation is connected to Takeo, GS7, GS6, and TR, and has a 230kV voltage (GS4) Double Bus Bar and have 230KV / 115KV transformer for S = 200MVA.The GS4 is equipped with a wide range…
MPPT (Maximum Power Point Tracking) is a powerful and useful electronic device that used to convert the energy from the sun for every day using from the past until now. All MPPT devices are use to manage the sun ray for the conversion to the electrical power for daily usage. In this project we pick…
Currently, Cambodia is growing in all areas, including industry, and other countries around the world are very interested in Industry 4.0. In particular, the creation of a robotic production line requires the use of many objects that create motion, in which we have the use of many types of electric motors. Now let me introduce…
This paper describes Loss minimization by optimal power flow based on Search intelligences in which the power transmission loss function is used as the problem objective. Although most of optimal power flow problems involve the total of the entire Optimal power system, in some cases some different objective may be chosen. In this paper, to…
This efficiency of photovoltaic (PV) panels decreases as the panels’ temperature increases. It is affected by various environmental parameters like temperature, dust, air velocity, and humidity. Mainly temperature is the critical factor to obtain maximum efficiency. One way of improving the efficiency of PV system is to maintain a low operating temperature by cooling it…
This thesis describes an efficient control technique for a three-phase inverter using a Robust control method with an output LC-filter. Robust control is used in the inverter to provide a well-regulated output voltage, while an LC-filter is employed at the output side to help filter out unnecessary signals. In addition, this proposed robust control utilizes…
In fact, this thesis could not achieve well if there were no useful and helpful contribution of these respectful people who always provided me the uncountable aids and valuable advices as well as the encouragement during my study in National Polytechnic Institute of Cambodia, Cambodia. First of all, I would like to express my great…
