The Power System Software is an integral part of RSCAD for RTDS and
allows the creation of power system simulations. The Power System Component Library contains models of the high voltage, high power devices that can be found in today’s power systems.
RTDS Technologies Simulation experts are continually expanding the component library based on customer
modeling requirements and in-house research. Models are developed to
expand the application and the efficiency of the simulator. For example,
it is now possible to stack models, thus executing more than one component
on one processor. RTDS Technologies continues to work hard to
accommodate more components on to a rack of hardware. Through this effort,
we intend to help our clients make the most of their investment.
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Power System Component Model Library
Example of available models include the following groups of components:
Real Time Network Solution – solution of the nodal equations including passive components, breakers and faults
Sources - voltage and current with series network equivalent impedance
Transmission Lines – Bergeron (max. 12 cond.) and frequency dependent (max. 6 cond.) traveling wave, as well as, PI Section (max. 12 cond.), mutually coupled transmission lines
Machines - synchronous and induction machines, multi-mass model (max. 7 masses)
HVDC - 6-pulse converter with improved firing and internal faults for Point-to-Point and Back-to-Back systems
FACTS - GTO based voltage type converter for STATCOM and UPFC, and TCSC internal faults
SVC - including TCR (with improved firing), TSC and fixed or switched filters
Series Compensation - series capacitor with MOV and bypass switch
Transformers - 2 and 3 winding transformers with on-load tap changers, saturation and hysteresis, internal faults
Instrument Transformers - current transducer (CT), capacitive voltage transducer (CVT), potential transformers (PT)
Examples of specific models available in the RSCAD Software Suite include:
Component Stacking - It is now possible to stack, or execute, more than one component on a single processor optimizing use of available processing power.
User Defined Components - The user can introduce new power and control system components for use with the RTDS Simulator via a special C language interface called the User-Defined Components (UDC.)
Improved Firing Algorithm - The improved firing algorithm is a new and novel approach, developed by RTDS Technologies to increase the effective valve firing resolution to less than one microsecond while maintaining a simulation time-step of approximately 50 microseconds. Many advanced models (e.g. FACTS , other power electronic devices) requiring fine adjustments in firing angle benefit from the improved firing algorithm which can be used when either external controls or simulated controls are being tested.
RPC Network Solution - The RPC Network Solution’s effect is revolutionary to real time simulation! The RPC Network Solution can handle 54 nodes in a single lumped circuit as well as 12 embedded valve groups. This is done by using on-line matrix decomposition to allow continually varying admittances. All 54 nodes can be included in the area of the matrix that is decomposed. Consequently, valve group models and variable conductance values can be connected to any of the 54 nodes. The RPC-based Network Solution can be used as the base network for all individual power system component models such as generators, valve-groups, transformers, transmission lines, TCSC’s, SVC’s, etc. The RPC Network Solution is presently dimensioned for 56 single-phase switches (i.e. breakers and/or faults).
Imbedded Valve Groups - Using the RPC Network Solution, it is now possible to solve valve groups (i.e. for HVDC, TCSC, SVC, etc.) as imbedded parts of the main admittance matrix. The advantage of this is a much more accurate representation of harmonics, plus it also eliminates the possibility of numerical instability on the DC-side interface. Imbedded valve groups also allow valve faults to points outside the valve group, as well as internally.
Switched Filter Component - One or more Switched Filter component can be used to enable groups of filters, with 12 independently switched branches, to be simulated in addition to the 56 switches allowed in each network solution.
Models with imbedded breakers, transformers - A number of new models incorporate imbedded features to further maximize the number of nodes available in each simulation case. New single and twin transmission line models include imbedded breakers at each end. The generator model includes the unit transformer and LV bus. One version of the 3-winding transformer model imbeds a passive RLC load on the tertiary and the tertiary bus.
Please contact us for more information. We would be happy to provide a complete list of available models or more detailed information on specific models of interest.
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