DSATools

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    The DSAToolsTM

    provides a complete toolset 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.

    PSATPowerFlow & Short Circuit Assessment Tool

    PSATTM

    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 other DSAToolsTM

    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 DSAToolsTM applications

    VSATVoltage Security Assessment Tool

    VSATTM 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 scenarios.

    Applications:

    Reactive power planning studies Operational planning studies (security limit assessment) On-line voltage security assessment Any analysis involving assessment of thermal overloads

    determination of voltage security limits, evaluation of

    required voltage stability margins, transfer limits (ATC &TTC)

    TSATTransient Security Assessment Tool

    TSATTM

    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:

    Studies involving rotor angle, voltage, or frequency stability Transmission system design and operating studies including

    stability limit assessments

    IPP integration studies Design and setpoint determination of special protection

    systems

    Control tuning and protection coordination

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    Powertech Labs Inc.12388 - 88

    thAvenue

    Surrey, British Columbia

    Canada V3W 7R7

    Email: [email protected]

    Web: http://www.dsatools.com

    Nayak Power Systems Pvt. Ltd.14/3, 2nd floor, HRB Chambers

    Andree Road, Shanthi Nagar

    Bangalore-560027 INDIA

    Email: [email protected]

    Web: http://www.nayakpower.com

    Authorized Representatives:

    SSATSmall Signal Analysis Tool

    SSATTM

    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:

    Studies of low-frequency inter-area oscillations Analysis of local or inter-machine modes of oscillations Design and tuning of controls Investigation of the sensitivity of system parameters on modes of

    oscillation

    Contingencies screening to meet damping requirement Determination of power transfer limit to meet damping requirement

    CDTControl Design Toolbox

    CDTTM

    is a specialized software tool for tuning power system stabilizers. CDT

    works with Matlab and SSAT to provide advanced tuning and bench marking

    capabilities and is available as a stand-alone tool or as an add-on module to

    SSAT

    On-Line Application of DSATools

    Security Assessment in Near Real-Time

    The DSAToolsTM

    is designed to provide on-line security assessment when used in real-time

    sequence of the control centers energy management system (EMS). The software works

    with a solved powerflow provided by the state-estimator and communicates with the EMS

    via dedicated data exchange protocol. Powertechs DSAManagerTM

    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.

    WSAT Wind Security Assessment Tool

    Powertechs on-line DSA technology is used with the Wind Security Assessment Tools (WSAT), in joint development

    with the Irish national grid company EirGrid. WSAT is now operational at the National Control Centre (NCC) of EirGrid.