Most of developing countries suffer from decreasing and poor quality of drinking water which led to emergence of many dangerous diseases. In addition, there isn’t any methodology followed to predict and disinfect dri...Most of developing countries suffer from decreasing and poor quality of drinking water which led to emergence of many dangerous diseases. In addition, there isn’t any methodology followed to predict and disinfect drinking water by using advanced software program. Maintaining water quality in the water distribution system has become a prominent issue in the study of the water network. Residual chlorine concentration is the indicator to ensure the quality of water in the water network because it eliminates contaminants in the distribution network beginning of the treatment plant down to the consumer. In collaboration with Alexandria (Egypt) Water Company, samples were taken from El-NOZHA water plant station and El-HADARA water distribution network to know the free residual chlorine. In this paper, WaterCAD software has been used to make hydraulic analysis and calibration of residual chlorine in water distribution network to know the ideal chlorine dose that should be added at the water treatment plant and to know the areas of strength and weakness in the concentration of free residual chlorine in the water distribution network. In addition different scenarios have been found to know the free residual chlorine at the weakness areas after injecting chlorine in some junctions and the impact of a fire case or breaking in the water pipe distribution network on the residual chlorine. Results showed ensuring in the water quality in the distribution network by adding chlorine dose in water less than the existing dose which has been added in the El-NOZHA water treatment plant. It is possible to maintain the percentage of free residual chlorine concentration at different locations without relying on adding chlorine only in water treatment plant by injecting low percentage of chlorine dose in the junctions.展开更多
Intelligent distribution automation system （IDAS） was developed based on distribution automation system that was installed in all distribution offices of Korea. IDAS was designed the combined system with the functio...Intelligent distribution automation system （IDAS） was developed based on distribution automation system that was installed in all distribution offices of Korea. IDAS was designed the combined system with the function of supervisory control and data acquisition （SCADA） and distribution automation system （DAS） for network operation from substation to high voltage customer, and it has been installed in Vietnam, China and Indonesia. This paper explains the project scope, system configuration, and the function of each sy stem.展开更多
电力系统的发展导致调度自动化系统的重要性日益提升,这些系统是电力系统安全稳定运行的关键组成部分之一。监控控制与数据采集(Supervisory Control And Data Acquisition,SCADA)系统最初用于电力调度自动化系统中,为实现能源管理系统(...电力系统的发展导致调度自动化系统的重要性日益提升,这些系统是电力系统安全稳定运行的关键组成部分之一。监控控制与数据采集(Supervisory Control And Data Acquisition,SCADA)系统最初用于电力调度自动化系统中,为实现能源管理系统(Energy Management System,EMS)/配电管理系统(Distribution Management System,DMS)在电力系统中的应用奠定了基础。为了促进电子系统的快速发展,基于SCADA向EMS/DMS系统的转变,设计了一种用于110 kV变电站模型的调度自动化系统。通过实施此系统,可以减少调度过程中的重复性工作,提高效率,提高电力分配的准确性。展开更多
文摘Most of developing countries suffer from decreasing and poor quality of drinking water which led to emergence of many dangerous diseases. In addition, there isn’t any methodology followed to predict and disinfect drinking water by using advanced software program. Maintaining water quality in the water distribution system has become a prominent issue in the study of the water network. Residual chlorine concentration is the indicator to ensure the quality of water in the water network because it eliminates contaminants in the distribution network beginning of the treatment plant down to the consumer. In collaboration with Alexandria (Egypt) Water Company, samples were taken from El-NOZHA water plant station and El-HADARA water distribution network to know the free residual chlorine. In this paper, WaterCAD software has been used to make hydraulic analysis and calibration of residual chlorine in water distribution network to know the ideal chlorine dose that should be added at the water treatment plant and to know the areas of strength and weakness in the concentration of free residual chlorine in the water distribution network. In addition different scenarios have been found to know the free residual chlorine at the weakness areas after injecting chlorine in some junctions and the impact of a fire case or breaking in the water pipe distribution network on the residual chlorine. Results showed ensuring in the water quality in the distribution network by adding chlorine dose in water less than the existing dose which has been added in the El-NOZHA water treatment plant. It is possible to maintain the percentage of free residual chlorine concentration at different locations without relying on adding chlorine only in water treatment plant by injecting low percentage of chlorine dose in the junctions.
文摘Intelligent distribution automation system （IDAS） was developed based on distribution automation system that was installed in all distribution offices of Korea. IDAS was designed the combined system with the function of supervisory control and data acquisition （SCADA） and distribution automation system （DAS） for network operation from substation to high voltage customer, and it has been installed in Vietnam, China and Indonesia. This paper explains the project scope, system configuration, and the function of each sy stem.
文摘电力系统的发展导致调度自动化系统的重要性日益提升,这些系统是电力系统安全稳定运行的关键组成部分之一。监控控制与数据采集(Supervisory Control And Data Acquisition,SCADA)系统最初用于电力调度自动化系统中,为实现能源管理系统(Energy Management System,EMS)/配电管理系统(Distribution Management System,DMS)在电力系统中的应用奠定了基础。为了促进电子系统的快速发展,基于SCADA向EMS/DMS系统的转变,设计了一种用于110 kV变电站模型的调度自动化系统。通过实施此系统,可以减少调度过程中的重复性工作,提高效率,提高电力分配的准确性。
