Ipsa 2 Transient Stability Introducton The oponal Transient Stability module enables users to analyse the dynamic response of an electrical power system to faults and switching operaons. Ensuing study results determine crical clearing mes, fault ride through compliance, motor starng and re-acceleraon as well as governor and AVR response and tuning. Dynamic controllers, such as governors and AVRs are modelled using the user-defined modelling (UDM) block diagram editor. Network controllers are modelled to represent distributed control systems and smart grid controllers. Custom ‘black box’ models can be developed for complex controllers. Transient Stability is available to Ipsa 2 clients as an oponal module to determine power system response characteriscs. The module supports any preferred combinaon of simulaon, output and modelling criteria, as specified by the user. This powerful module includes custom ‘black box’ controllers, protecon relay operaon and has empirical validaon. Load Flow Fault Level Transient Stability Protecon Grading Harmonics Reliability Scripng DC Networks Training & Support The simulaon, analysis, display and modelling opons include: Simulaton Optons • Intelligent me step control for fast simulaons • All power system variables are ploed including internal controller signals • UDM controllers are automacally reloaded afer eding • Individual switching mes are featured within the equipment properes menu • Protecon relays operang during transient simulaons Results Output Optons • Directly plot results on up to eight in-built graphs for interacve, flexible analysis • Each plot is configurable to display specific system parameters of busbars or connected equipment • Store output results as files for easy future access • View and save results as reports for summave analysis Fault ride through analysis Crical clearing me studies
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Ipsa 2 Transient Stability - Software for power systems
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Ipsa 2 Transient Stability
IntroductionThe optional Transient Stability module enables users to analyse the dynamic response of an electrical power system to faults and switchingoperations. Ensuing study results determine critical clearing times, fault ride through compliance, motor starting and re-acceleration as well asgovernor and AVR response and tuning.
Dynamic controllers, such as governors and AVRs are modelled using theuser-defined modelling (UDM) block diagram editor. Network controllersare modelled to represent distributed control systems and smart gridcontrollers. Custom ‘black box’ models can be developed for complexcontrollers.
Transient Stability is available to Ipsa 2 clients as an optionalmodule to determine power system response characteristics. Themodule supports any preferred combination of simulation, outputand modelling criteria, as specified by the user.
This powerful module includes custom ‘black box’ controllers,protection relay operation and has empirical validation.
Load Flow
Fault Level
Transient Stability
Protection Grading
Harmonics
Reliability
Scripting
DC Networks
Training & Support
The simulation, analysis, display and modelling options include:
Simulation Options• Intelligent time step control for fast simulations
• All power system variables are plotted including internalcontroller signals
• UDM controllers are automatically reloaded after editing
• Individual switching times are featured within the equipmentproperties menu
• Protection relays operating during transient simulations
Results Output Options• Directly plot results on up to eight in-built graphs for
interactive, flexible analysis
• Each plot is configurable to display specific system parametersof busbars or connected equipment
• Store output results as files for easy future access
• View and save results as reports for summative analysis
Fault ride through analysis Critical clearing time studies
Branch and Transformers• Time dependent switching operations
• Protection relay operations
• Circuit breaker intertrip operations
Network Controllers• Network controllers denote devices such as SCADA and
smart grid controllers that manage multiple networkcomponents
• Implemented using plug-in controllers with inputs andoutputs configured to link to any network component
User-Defined Models (UDM)• Block diagram illustration for synchronous and induction
machine controllers
• Library of user-editable governor and IEEE AVR models
• New models are developed for all types of controllersincluding governors and AVRs
• UDM model changes are immediately reflected in thetransient stability simulations with no need to compileor link
Plug-in Models• Used to represent specialised controllers, for example,
wind turbine or SCADA controllers
• Written in C++ and optionally Fortran languages
• Provided as a ‘black box’ to the end user
• Parameter entry is through an automatically generateddialogue during network set up
Ipsa 2 Transient Stability
TNEI Bainbridge House 86-90 London Road Manchester M1 2PW