| I*SIM - Transient Stability Analysis |
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PTW I*SIM is a program for transient stability analysis.
It is designed to simulate system response during
and after transient disturbances such as faults, load
changes, switching, motor starting, loss of utility,
loss of generation, loss of excitation, and blocked
governor events. I*SIM is designed to study today’s
most challenging simulation problems in one convenient
and easy-to-use program.
Benefits:
Simulate complicated disturbances and system responses
to design safer and more reliable power systems.
Save time with all IEEE standard exciter, turbine
governor and PSS models built-in.
Increase flexibility with a powerful graphical builder
for user-defined controllers.
Save time by running multiple case scenarios from
a single action.
Communicate designs more easily with professional
reports and graphs.
Evaluate alternatives quickly and easily to establish
an optimal design.
Interface Options:
Graphical interface for system design, model selection
and study results.
Stores multiple study scenarios with dynamic events
and outputs graphics for each project.
Expanding tree structure to manage study scenarios.
Copy, paste and rename study scenarios to compare
alternative designs.
Run multiple study scenarios as a single action.
Compare results from multiple scenarios on the same
graph.
Plot phase and sequence voltage and current, speed,
frequency, real and reactive power, rotor angle, voltage
angle, torque, Efd, Ifd, Ed”, Ed’, Eq”,
Eq’, and more.
Custom Models in User-Defined Library::
Choose from over 100 standard models for machines,
governors, exciters, power system stabilizers, loads,
overcurrent relays, under voltage, under frequency
relays, and distance relays.
Graphical drag and drop interface for building custom
control block diagrams.
Analysis Options:
Dynamic response to power system disturbances.
Flux-level representation of all machines including
induction motors.
Full dynamic representation of independent power systems
(no infinite bus required).
Simulate fault conditions and fault clearing for 3-phase,
single line, double line bus faults and branch faults
anywhere along the line.
Start, trip and reclose on induction motors.
Integrated motor parameter estimation for flux-level
model.
Frequency dependent network modeling with positive,
negative, and zero sequence networks.
Control event sequence with adjustable relay settings.
Simulate load shedding, isolation from utility, transfer
switching, loss of excitation, blocked governor, block
load changes, motor starting, and fault conditions.
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