Online and Offline
Transient Stability and
Dynamic Security
Analysis Tool
DSA Tools
DSA Tools
The DSATools™ suite is the next-generation of power system analysis tools and provides the complete assessment of system security including all forms of stability.
The DSATools™ provide a complete tool-set for power system planning and operational studies. In addition to rich modeling capabilities and leading-edge computational methods, the software is highly automated and can provide engineers with significant productivity improvements.
For more information, please visit the DSATools website.
PSAT
PSAT™ (PowerFlow & Short Circuit Assessment Tool) is a full-featured graphical powerflow program that includes table-driven data manipulation and a flexible one-line diagram capability. It can be used for stand-alone powerflow analysis or for data exchange with the other DSATools™ products.
Applications
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Creating and modifying powerflow models
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Contingency assessment including overload and voltage studies
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Producing diagrams for output reports
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Setting up initial conditions for other DSATools applications
VSAT
VSAT™ (Voltage Security Assessment Tool) is a highly automated steady-state analysis tool designed for comprehensive voltage security assessment. VSAT™ includes flexible specification of voltage security criteria and is designed to handle a large number of contingencies, power transfers, and scenario
Applications
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Reactive power planning studies
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Operational planning studies (security limit assessment)
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On-line voltage security assessment
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Any analysis involving, Assessment of thermal overloads Determination of voltage security limits Evaluation of required voltage stability margins Transfer limits (ATC & TTC)
TSAT
TSAT™ (Transient Security Assessment Tool) is a leading-edge full time-domain simulation tool designed for comprehensive assessment of dynamic behavior of complex power systems. TSAT™ includes a rich model library, state-of-the-art solvers, and a highly intuitive user interface. Like VSAT™ and SSAT™, TSAT™ can automatically find security limits under specified contingencies and transfer conditions.
Applications
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Studies involving rotor angle, voltage, or frequency stability
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Transmission system design and operating studies including stability limit assessments
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IPP integration studies
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Design and setpoint determination of special protection systems
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Control tuning and protection coordination
SSAT
SSAT™ (Small Signal Analysis Tool) is an eigenvalue-based software tool designed for analysis of small signal stability of large complex power systems. It includes a wide number of analysis functions and productivity tools, making it ideal for investigating oscillatory behavior, and for designing and tuning controls to improve system damping.
Applications
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Studies of low-frequency inter-area oscillations
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Analysis of local or inter-machine modes of oscillations
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Design and tuning of controls
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Investigation of the sensitivity of system parameters on modes of oscillations
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Contingencies screening to meet damping requirement
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Determination of power transfer limit to meet damping requirement
WSAT
PSAT™ (PowerFlow & Short Circuit Assessment Tool) is a full-featured graphical powerflow program that includes table-driven data manipulation and a flexible one-line diagram capability. It can be used for stand-alone powerflow analysis or for data exchange with the other DSATools™ products.
Applications
-
Creating and modifying powerflow models
-
Contingency assessment including overload and voltage studies
-
Producing diagrams for output reports
-
Setting up initial conditions for other DSATools applications
Applications
Security Assessment in Near-Real Time:
The DSATools™ are designed to provide on-line security assessment when used in the real-time sequence of the control center's energy management system (EMS). The software works with a solved powerflow provided by the state-estimator and communicates with the EMS via flat files or TCP/IP network connection. Powertech's DSAManager™ controls all computations which are conducted on a dedicated cluster of computers and, if necessary, distributed processing is used to meet performance requirements. Results may be passed back to the EMS console or are accessible locally or remotely.