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Anaheim awards landmark OMS project to Advanced Control Systems The City of Anaheim (California) recently awarded the contract for its outage management system (OMS) to Advanced Control Systems, Inc., (ACS) of Atlanta, Georgia. The turnkey project represents a significant milestone in the evolution of OMS, since it is the first system from a major vendor to completely integrate OMS functions with real-time SCADA information, using the same user interface, network model and real-time database. The PRISM OMS package includes Trouble Call Analysis (TCA); Interactive Voice Response for Crew Call-out (IVR); and an expansion of Anaheim's installation of PRISM Portal Enterprise, for internet-based system reporting, access and control. PRISM OMS is a fully-realized application suite that capitalizes on the Advanced Control Systems philosophy that a single, synchronized database of consolidated network information should be the hub of utility operations. Multiple databases encourage data fragmentation, which is not just an information technology issue -- it disrupts efficiency, increases utility response time and jeopardizes personnel safety. This viewpoint is echoed by the Anaheim specification: "the integration of CIS, SCADA, and OMS will enable the system operator to more effectively process outage and system information, thus decreasing outage duration and increasing system reliability." Among other reasons, PRISM OMS was selected over competing proposals because it addressed this issue fully and directly. The utility also emphasized system security (the Unix platform on which PRISM OMS runs is highly resistant to viral infection) and the advantage of a simplified upgrade to a dynamic training simulator (or other load flow-based analysis applications) at a later date. The most obvious hurdle to consolidating GIS, CIS, OMS and SCADA information into a single database is the capture of GIS map-based data and its conversion to displays that are accessible in real time, featuring completely up-to-date information on the status of the distribution system. Advanced Control Systems DAS Map, a tool developed for distribution automation, provides the necessary solution. DAS Map will extract data from Anaheim's ESRI GIS maps and automatically determine the network topology. A complete set of digitization tools will trace static GIS drawings, connect section nodes, generate database entries, and build a node-arc-node network model. PRISM OMS operators will use a fully functional, geographically oriented, dynamically colorized SCADA display with high-speed pan and zoom. Operators will also be able to view the network as dynamic one-line diagrams. Since the OMS and SCADA systems address the same database, the transition between the two systems is seamless. Many functions -- control, switch planning, and areas of authority, for example -- are available from either console, ensuring rapid and synchronous updating. Since the security subsystem is also integrated, access to features can be closely controlled. This is especially important with tagging functions, since personnel safety -- always a concern -- becomes more complicated when traditionally separate SCADA and OMS systems deliver conflicting information about the state, control and planning options available for switches. Since PRISM OMS only uses information from the real-time database, the hazards of such confusion are eliminated. Likewise, PRISM OMS goes at least one step further than the traditional approach to trouble call analysis, which depends almost completely on externally-generated information: customer calls, crew observation and historical recall. PRISM OMS takes full advantage of real-time data to identify, isolate and resolve outages. Since it uses actual system information that is collected, analyzed and reported as it happens, PRISM OMS can generate switch solutions and crew assignments with absolute confidence. Restoration is more reliable, and crews operate more efficiently. The advanced work that Advanced Control Systems has done with fully automatic restoration systems in Taiwan, Jordan and Barbados means that PRISM OMS is sophisticated enough to operate in a hands-off mode, without dispatcher or operator intervention, should that be desired. The trouble call module shares its interface with the rest of PRISM OMS. Dynamic colorization is supported, predictions can be displayed, and schematic or geographic views can be employed, with full synchronization of the underlying data. Considering the far-reaching effects that PRISM OMS will have on utility operation and customer experience, surprisingly little is required in the way of new hardware. Anaheim will add three new HP ProLiant servers. The first of these will be connected to the city PBX, and will handle IVR for crew call-out. The other two servers (in a redundant configuration with automated failover) will run PRISM OMS and host the Oracle functions for extended web access. All three new servers will be attached to the SCADA wide area network (WAN), which connects the company's city hall headquarters to its Lewis substation, and subsequently to the city's administrative WAN. Three new Christie GraphXMASTER DLP projectors will upgrade the utility's existing display wall, and several new printers will facilitate OMS reporting and logging. The City of Anaheim Public Utilities Department serves approximately 105,000 customers throughout a 50-square mile area, with a peak system demand of more than 580 megawatts. It operates ten 69 KV/12 KV distribution substations (with 17 69 KV transmission lines) and 105 12 KV distribution substations. A 50 MW combustion turbine generator is deployed for peak conditions. The utility is poised for growth, with three distribution substations, one transmission substation and a 220 KV transmission line in the planning stages, as well as 280 MW of new generation capacity. It is one of the most progressive municipal utilities in the country, having been among the first to adopt key new technologies: consolidating operational utility reporting with the city's municipal WAN; deployment of DNP and local area networks as tools for substation integration; and web-based access to utility information. |
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| Contents © 2008 Advanced Control Systems, Inc.
All trademarks are the property of their respective owners. This site last updated: 30 September 2008. |