It is a powerful and flexible graphical user interface to the world-renowned, EMTDC solution engine. PSCAD enables the user to schematically construct a circuit, run a simulation, analyze the results, and manage the data in a completely integrated, graphical environment. Online plotting functions, controls and meters are also included, so that the user can alter system parameters during a simulation run, and view the results directly.
PSCAD comes complete with a library of pre-programmed and tested models, ranging from simple passive elements and control functions, to more complex models, such as electric machines, FACTS devices, transmission lines and cables. If a particular model does not exist, PSCAD provides the flexibility of building custom models, either by assembling them graphically using existing models, or by utilizing an intuitively designed Design Editor.
The following are some common models found in systems studied
using PSCAD:
• Resistors, inductors, capacitors
• Mutually coupled windings, such as transformers
• Frequency dependent transmission lines and cables (including the most accurate time domain line model in the world!)
• Current and voltage sources
• Switches and breakers
• Protection and relaying
• Diodes, thyristors and GTOs
• Analog and digital control functions
• AC and DC machines, exciters, governors, stabilizers and inertial models
• Meters and measuring functions
• Generic DC and AC controls
• HVDC, SVC, and other FACTS controllers
• Wind source, turbines and governors
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