Siemens has used its great experience and know-how in network planning to develop powerful system simulation and analysis tools to assist engineers in their highly responsible work. The software tools of the Power System Simulator PSS®Product Suite are leading products with respect to technical performance and user-friendliness. Comprehensive interfaces enable the interaction of all PSS®Product Suite tools, and also support the integration with other IT systems.
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PSS®ODMS is a scalable and extensible software platform designed for easy integration with SCADA/EMS. A flexible software product, PSS®ODMS combines a comprehensive network modeling/analysis solution with an open, standards-based architecture that facilitates easy integration with transmission operations and planning data, as well as, software and business processes.
PSS®ODMS offers a broad range of features designed to increase power system security, reliability, network modeling accuracy and productivity. The network modeling and analysis functions support past, present and future network states (including alternative future scenarios).
PSS®ODMS has been successfully deployed at various power utilities and similar organizations throughout the world, primarily as either a SCADA-independent on-line Network Applications tool or as an enterprise solution for CIM-based network modeling. This flexibility is achieved through a combination of modern software design principles and an open architecture which leverages proven commercial software technologies and accepted industry standards such as the Common Information Model (CIM) (IEC 61970), OLE Process Control (OPC DA/HDA) protocols for measurement data integration.
Advanced analytical functions (both on-line and study) include Topology Analysis, Power Flow, State Estimator, Short Circuit and Contingency Analysis. Results are visualized in one-line diagram displays and Microsoft® Excel-style tabular displays. A comprehensive Python™ API is included for advanced reporting, software integration, etc.
The platform offers various automated functions to import and export network data in various formats such as CIM/XML and some proprietary EMS formats. Additionally, the powerful .NET and Python™ API’s included with PSS®ODMS enable the creation of custom scripts to import and export network and graphical data in literally any text-based file format.
In addition, PSS®ODMS seamlessly integrates with PSSE through data exchange and scripting to bridge the data gap between operations and planning departments.
Derived from Siemens PTI’s proven market leading PSS®ODMS platform, Single-user Model Management (SMM) is a solution for individual transmission and operations planning engineers to convert CIM/XML models to/from PSS®E along with ability to view, validate, solve and edit models in CIM. This single user tool includes the following key functions:
The PSS®ODMS platform provides a comprehensive network modeling/analysis solution with an open, standards-based architecture that facilitates easy integration between transmission operations, planning and SCADA/EMS management. Designed specifically to close the gap between power engineering departments, our proven Enterprise Model Management (EMM) solution provides both Planning and Operations with a unified source of model data - a repository of information that is reliable and current. EMM allows everyone seamless and continuous access to equal levels of detail - a single source for model data in Common Information Model (CIM) format that can transform model-building.

For power utilities and other organizations responsible for operating a portion of the electrical transmission grid who need a versatile tool for operator/dispatcher training to meet new regulatory requirements, Siemens PTI offers the OT Simulator (Operator Training Simulator), configurable as either an independent single-user simulation or shared multi-user environment.
The OTS provides a flexible and low-maintenance tool for operator training that leverages the proven capabilities of the PSS®ODMS platform to support operator training on customer specific network models. Unlike traditional approaches which may require months of model building, configuration and tuning work to deploy, the OTS can be configured quickly and efficiently and easily deployed at any location (including off-site).
The OTS has the following simulation capabilities:
An aspect of PSS®ODMS scalability is its ability to provide a cost effective solution for budget conscious transmission system operators with basic SCADA/EMS who desire the added benefits of on-line Network Applications without the expense of a full-scale conventional EMS. PSS®ODMS provides an easily deployed and maintained standalone Network Applications solution.
Advanced analytical functions (both on-line and study) include Power Flow, Contingency Analysis, State Estimator and Topology Analysis. Results are visualized in one-line diagram displays and Microsoft® Excel-style tabular displays.
The State Estimator has an extremely high convergence rate and includes self-tuning features. In addition, this function can calculate results for non-telemetered sub-transmission areas based on the scheduled load data. The Historical Case Builder feature uses a combination of historical model reconstruction and off-line State Estimator and Power Flow solutions to reconstruct an accurate solved historical snapshot case for study.
The Contingency Analysis function, including a very fast Outage Ranking screening mechanism, is capable of analyzing both N-1 and complex user-defined contingencies involving potentially multiple outages. Additionally, it supports user-defined protection schemes and/or manual corrective actions in Python™ (allowing for complex logic) and presents the cumulative results. This brings Contingency Analysis to another level where it can be used to test the effectiveness of existing protection schemes, help to increase system security and reliability. All these features provide more overall capabilities to the engineers and system operators, enabling them to be more effective in developing system operating alternatives during heavily stressed conditions.
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