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StarSim Offline evaluation installer:  Download Link

StarSim Offline is a LabVIEW-based electromagnetic transient simulation software, mainly for verifying control algorithms and system models. StarSim Offline consists of StarSim Editor and StarSim Express VI. The StarSim Editor is a graphical modeling environment for you to use drag and drop approach to create and build your electrical system model. The StarSim Express VI loads and converts the StarSim model file into the executable simulation code.


StarSim Offline is the foundation of other StarSim tools, such as StarSim Real-Time and StarSim FPGA, these tools need StarSim Offline to work properly.


StarSim Solvers

StarSim Offline supports two solvers:

  • State Space-Based Trapezoid Solver and Switch Ron/Roff Modeling

This solver forms state-space equations for the electrical system, and then discrete the state-space equations with the implicit trapezoid integration rule. This solver is very similar with the classical EMTP type solver (both solvers use the implicit trapezoid integration method).


The switch (power electronics device, breaker, etc) is modeled as a very small resistor when on and as a very big resistor when off.

  •  Backward Euler Solver and Switch L/C Modeling

This solver uses the backward Euler rule to discretize energy storage components ( inductors and capacitors), and then forms system matrices according to the modified nodal analysis method.


The main application of this solver is for FPGA-based power electronics system real-time small step size simulation.

The switch (power electronics device, breaker, etc) is modeled as a very small inductor when on and as a very small capacitor when off.

StarSim Real-Time only supports the state-space based trapezoid solver, StarSim FPGA only supports backward Euler solver.


State Space-Based Trapezoid Solver Backward Euler Solver



State Space-Based Trapezoid Solver


Backward Euler Solver


StarSim Offline



StarSim Real-Time




StarSim FPGA






Solver Accuracy

The key innovation of StarSim tools is to leverage new platform (both software and hardware, such as LabVIEW, PXI, FPGA, etc) to perform the electrical system offline and real-time simulation. For the solver part, StarSim adopts classical and robust solvers, and StarSim solvers have been evaluated through a lot of test cases and customer applications.


State-Space Based Trapezoid Solver Simulation Result Comparison


Backward Euler Solver Simulation Result Comparison(Grid Connected Inverter System)


 
 


 
 
 

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