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Power Electronics, AC-DC Machines and Electrical Drives Simulation Software

CASPOC is a powerful, innovative system simulator designed for the simulation of Power Electronics and Electrical Drives. Using CASPOC, modeling power electronics, electrical machines, load and control in one multilevel model is fast and simple. This multilevel model includes a circuit level for the modeling of switched mode power supplies, a component level for the modeling of electrical machines/loads and a system level for the modeling of control algorithms.
Only CASPOC combines the ease of use of visual drag and drop schematic development, the productivity of modeling language, the power to view simulation results in ‘real time’ during the simulation in auto-scaling windows, and the world’s fastest simulation performance with no convergence problems.
LORENTZ-HF also calculates near and far field results, power and directive gain, radar cross-section, axial ratio, and input impedance, admittance and scattering parameters.
CASPOC is used in the design and simulation of complex power and control devices and systems such as: Rectifiers, DC Converters, AC Converters, Resonant Converters, Power Engineering, Induction Machines, Vector Controls, Mechanics, Active Filters, Harmonics, DC Machines, Stepper Motors and more, used in industries such as Aerospace, Automotive, Utility, Industrial, Transportation and Commercial Electronics.



  • Extended library blocks for power electronic and drive systems

  • Library of electrical machine models, including mechanical systems, rotating and translating, shafts, gearboxes, springs, bearings and friction models

  • Advanced library for AC motor control (see Advanced Electrical Drives, DeDoncker TU Aachen) including field oriented control, DTC and sensorless control

  • Extensive library for modeling sustainable green energy, such as wind turbines, solar modules, maximum power point trackers, grid converters, electric vehicles, battery and fuel cells

  • Models for temperature dependent power electronic semiconductors, including loss calculation

  • Math blocks for any function evaluation and vector signals for AC motor control

  • Replay of the simulation results for failure modes and further investigation – any point in time can be traced back and the state of the simulation at that point in time can be observed, including the animation, signals and state animation inside hierarchical models

  • Animation of the schematic showing full current path

  • Animated symbols on customized library blocks

  • Easy setting of parameters for all components

  • Interface with Data Acquisition board

  • Interface with INTEGRATED’s programs

  • User compiled C/C++ code via DLL

  • Export C code from the control system models

  • Optimized C code export, independent of type of microcontroller or DSP, including fixed point TI QMATH Library

  • Notes and figures can be added to the schematic

  • Ability to create scripts to run CASPOC in batch mode

  • Parameter sweep for any component parameter

  • Bode diagram for any system to identify stability, impedance and audio susceptibility. Gain/phase margin, bandwidth for any type of power electronics – no averaging models are required

  • Project management data can be stored with the simulation project

  • Archive the entire project with one click

  • Many samples on power electronics, electrical drives and sustainable energy are already pre-programmed


CASPOC Simulation Software for Power Electronics, Electrical Machines, Industrial Drives & Renewable Energy

CASPOC is a powerful, innovative system simulator designed for the simulation of Power Electronics and Electrical Drives. Using CASPOC, modelling power electronics, electrical machines, load and control in one multilevel model is fast and simple. This multilevel model includes a circuit level for the modelling of switched mode power supplies, a component level for the modelling of electrical machines/loads and a system level for the modelling of control algorithms
CASPOC Software contains 200 prepared and readymade practical lab circuits & example packages of several hundred circuits of power electronics & electrical drives available with solutions in electronic & printed form. So in many cases your problem is already modelled and simulated and we will provide it with the software. Circuit Examples of the same are mentioned below for reference:


  • 1-phase diode rectifier

  • 1-phase diode rectifier with inductive load

  • 1-phase thyristor

  • 1-phase diode bridge rectifier

  • 1-phase half-controlled symmetrical bridge

  • 1-phase half-controlled asymmetrical bridge

  • 1-phase thyristor rectifier bridge

  • 1-phase triac converter


  • 3-phase one sided thyristor bridge

  • 3-phase half-controlled symmetrical bridge

  • 3-phase thyristor bridge

  • 3-phase diode bridge

  • 3-phase triac converter


  • boost converter

  • buck converter

  • buck-boost converter

  • 2-quadrant converter

  • cuk converter

  • conventional chopper

  • bipolar switching dc-dc converter

  • unipolar switching dc-dc converter


  • series resonant circuit

  • parallel resonant circuit

  • voltage-source series

  • current-source parallel resonant converter

  • single-ended resonant dc/dc converter resonant converter below the resonant frequency

  • resonant converter above the resonant frequency

  • series-loaded resonant converter

  • Series-loaded resonant con. below resonant frequency

  • Series-loaded resonant con. above resonant frequency

  • parallel-loaded resonant converter

  • Parallel-loaded resonant con. below resonant freq.

  • Parallel-loaded resonant con. Above resonant freq.

  • zero-current-switching, quasi-res buck converter

  • zero-current-switching, quasi-res boost converter

  • Zero-voltage-switching, quasi-res buck converter.


  • Six pulse Pulse wide modulation

  • Pulse amplitude modulation

  • Pulse frequency modulation.

  • Vector pause modulation Notch

  • Analog to discreet encode

  • Analog to amplitude modulation encoder


  • forward dc/dc converter

  • flyback dc/dc converter

  • flyback parallel converter

  • forward 2 transistor dc/dc converter

  • flyback 2 output dc/dc converter

  • flyback 2 transistor dc/dc converter

  • current-source dc-dc converter

  • push-pull converter

  • full-bridge circuit

  • half-bridge circuit


  • 1-phase GTO DC-to-AC inverter

  • 1-phase parallel inverter

  • 1-phase current source inverter

  • mc Murray inverter

  • current-source inverter

  • voltage-source inverter


  • dc-link converter with current storage

  • dc-link converter with voltage storage

  • dc-link converter with energy storage

  • 6-pulse Cyclo converter


  • 1-phase transformer

  • triangle to star transformer

  • triangle to star transformer

  • star to triangle transformer

  • star to triangle transformer

  • triangle to triangle transformer

Electrical DRIVES

  • direct current machine

  • direct current machine with chopper drive

  • induction machine

  • current-source inverter with induction machine

  • voltage-source inverter with induction machine


  • switching of two capacitors

  • forward converter-feedback compensation

  • 1-phase LC filter

  • 3-phase LC filter

  • 1-phase thyristor-controlled inductor for static var control

  • 3-phase thyristor-controlled inductor for static var control

  • 3-phase switch-mode static var controller.


  • Vector-drive 1

  • Vector-drive 2

  • Vector-drive 3

  • Vector-drive 4

  • Vector-drive 5

  • Controlled DCM with 3-phase SCR drive

  • Chopper controlled shunt DCM

  • 1-phase active filter

  • 1-phase sinusoidal input current    rectification

  • 1-phase switch mode for a bidirectional

  • 3-phase vector diagram equivalent series resistance

  • second order system diode snubber circuit

  • RMS and average calculation

  • Flyback converter with voltage/current mode control.


  • buck current-mode control

  • buck current/voltage-mode control

  • buck P-I control

  • buck hysteresis control

  • buck converter with diode bridge and pwm controller

  • buck converter with diode bridge and amplitude mod.

  • buck converter with pwm controller.


  • Induction machine with formula of Kloss

  • Induction machine based on the T-model

  • Induction machine T-model with powers

  • Startup induction machine T-model

  • No load test with T-model

  • Induction machine slip=1

  • Direct current test induction machine

  • Startup induction machine 3-phase model

  • 3-phase model with constant slip

  • 3-phase mutual induction saturation

  • Vector diagram induction machine

  • Comparison T-model and 3-phase model.


  • Voltage source inverter

  • Adjustable speed drive

  • Induction machine in delta

  • Induction machine in star

  • Induction machine from star to delta

  • Soft-starter with constant fire angle

  • Soft-starter with decreasing fire angle

  • Six-step control


  • Shunt-machine without induction

  • Shunt-machine with induction

  • Series-machine without induction

  • Series-machine with induction

  • Series-machine with induction and variable

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