Using System Integration and Direct Digital Extraction Techniques to Develop, Implement and Maintain a Detailed Distribution System Hydraulic Model
使用系统集成和直接数字提取技术开发、实施和维护详细的配电系统水力模型
The City of Pittsburgh, Pennsylvania, has implemented several computer-based systems over the past few years to automate and improve the management of its water transmission and distribution network. Three of these systems--the Automated Mapping and Facilities Management (AM/FM) system, the Customer Information System (CIS), and the Supervisory Control and Data Acquisition (SCADA) system--are being integrated with a detailed hydraulic model of the entire transmission and distribution network. Automated techniques are being used to digitally extract and format most of the facilities data required by the modeling system from the AM/FM system, the customer and average metered consumption data from the CIS, and the demand factor and operations data from the SCADA system. Automated techniques are also being used to assign every customer in the CIS to their appropriate location in the model. Data from the AM/FM system and CIS defines customer types. These data are correlated to telemetered data from the SCADA system to establish demand peaking and diurnal fluctuations based on customer type and location. SCADA records are also used for model calibration. The completed model will be used to investigate system deficiencies, plan capital improvements, and enhance daily system operations. A discussion of the techniques used to build the model, techniques to be used to form ongoing model data maintenance, and potential additional uses of the model, such as water quality analysis and operator training, are presented.