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Typhoon HIL Software Manual
Schematic Editor Component Libraries
Detailed functionality and use of the pre-built Component Libraries in Schematic Editor
Modeling principles
This section describes modeling principles used in Typhoon HIL's software.
Electrical domain modeling principles and constraints
Overview of electrical domain modeling principles and constraints.
Electric circuit partitioning
This section describes the general motivation for electrical circuit partitioning and gives some practical guidelines for using it in your model.
Coupling component placement and parametrization - TLM based couplings
This section describes the TLM coupling component placement procedure and provides some general rules and tips for successful partitioning.

Typhoon HIL Software Manual
- Introduction
  Overview of the categories covered in the Typhoon HIL Software Manual
- System Requirements
  Guidelines for the hardware and/or software environment necessary to run Typhoon HIL software, for both PC and Test Server/Virtual Machine-based setups.
- Typhoon HIL Quick Start Guide
  Instructions in this section should help you quickly install all necessary software tools and setup hardware components in order to run an example model, either in real-time simulation or TyphoonSim.
- Typhoon HIL Toolboxes
  List of the Toolbox Packages available in the Typhoon HIL software suite
- Connecting to your HIL device
  Guidelines on how to connect to a HIL device using either USB or Ethernet ports.
- Device Manager
  Device Manager is used to create, manipulate, and activate HIL device setups.
- Typhoon HIL Control Center
  This section provides a general description of Typhoon HIL Control Center and lists the main software components accessible from it, as well as additional software tools which can be invoked from its interface.
- TyphoonSim
  This section provides a general description of the TyphoonSim software, which is available as both a standalone software and integrated in Typhoon HIL Control Center.
- Example Explorer
  General Description of the Typhoon HIL Control Center Example Explorer.
- Signal Access Management
  This feature allows you to change the visibility of signals
- Schematic Editor
  Introduction to the Schematic Editor tool in Typhoon HIL software toolchain
- TyphoonSim Solver Engine
  Summary of the TyphoonSim solver engine algorithms and capabilities as well as its modeling principles and simulation workflow.
- Simulation context definitions
  Introductory overview of the different simulation contexts - Real-time (VHIL) and TyphoonSim. Core library component and feature availability and visibility for each of these contexts are explained in detail.
- Schematic Editor Component Libraries
  Detailed functionality and use of the pre-built Component Libraries in Schematic Editor
  - Modeling principles
    This section describes modeling principles used in Typhoon HIL's software.
    - System architecture basics
      This section explains the basic elements of the Typhoon HIL system and their functions: FPGA Solver, User CPU, System CPU, Communication CPU, and Housekeeping CPU.
    - Electrical domain modeling principles and constraints
      Overview of electrical domain modeling principles and constraints.
      - FPGA solver basics
        This section describes the FPGA solver basics, including Standard Processing Cores, signal generators, LUT (Look-up-table), machine solver, and PWM modulator.
      - Loop-back Latency
        Description of the overall loop-back latency with a focus on digital input to analog output latency.
      - Switch models
        This section explains the types of switches in the Typhoon HIL software toolchain.
      - Irregular Model Example
        Example of a model where circuit partitioning is needed to compile the model in real-time.
      - Topological Conflicts
        This section describes topological conflicts
      - Electric circuit partitioning
        This section describes the general motivation for electrical circuit partitioning and gives some practical guidelines for using it in your model.
        Is there a need for circuit partitioning
        This section describes how to determine if there is a real need for circuit partitioning or some other solution, such as changing your HIL configuration, should be considered.
        Coupling component placement and parametrization - Ideal Transformer based couplings
        This section describes the coupling component placement procedure and provides some general rules and tips for successful partitioning.
        Coupling component placement and parametrization - TLM based couplings
        This section describes the TLM coupling component placement procedure and provides some general rules and tips for successful partitioning.
        Recommended places for TLM coupling components
        This section shows the general logic for determining the best spots for placing TLM coupling components through some common use cases.
        Multi-HIL specific circuit partitioning
        This section describes dividing circuits in multi-HIL systems
      - GDS oversampling
        Definition and overview of GDS oversampling in real-time/VHIL simulation, and how it can be used in cases where it is needed to sample Digital inputs multiple times per simulation timestep.
    - Signal processing modeling principles
      Overview of signal processing modeling principles.
  - Model partitioning
    This section describes the general motivation and gives some practical guidelines for model partitioning.
  - Component Library
    Description of the general properties of the component library in Schematic Editor, including a list of the main types of components available in it.
- Third-party integrations
  This section provides an overview of the key third party integrations within Typhoon HIL's toolchain.
- HIL SCADA
  Description of the HIL SCADA tool in Typhoon HIL Control Center
- Waveform Generator
  This section describes the waveform generator tool in Typhoon HIL Control Center.
- Test and Calibration Tool
  Description of the Test and Calibration tool in Typhoon HIL Control Center
- TyphoonTest IDE
  This section describes TyphoonTest IDE
- Signal Analyzer
  This section describes the Signal Analyzer tool.
- Lookup table extraction tool
  Description of the Typhoon HIL Control Center tool for extracting characteristics (lookup tables) from datasheet graphs and charts into a format that can be imported by non-linear models.
- Package Manager
  Description of the Typhoon HIL Control Center tool for creating and managing Typhoon packages that contain Schematic examples, Schematic and widget libraries, documentation etc.
- Usage Logging
  This section briefly describes Typhoon HIL software logging feature.
- Python Interpreters
  Overview of how you can use Typhoon HIL Python Interpreters to further customize your test files.

Coupling component placement and parametrization - TLM based couplings

This section describes the TLM coupling component placement procedure and provides some general rules and tips for successful partitioning.

Note: Offline simulators, like TyphoonSim, use a variable simulation step in their simulations, so real-time constraints are not a concern. As a result, model partitioning is not required for offline simulations because there is no need to split the model to improve computational performance within a fixed time frame. For those reasons, the partitioning behavior of TLM core couplings will be ignored. All of the following descriptions are related only to real-time/VHIL simulation.

Correct placement and parametrization of coupling components is crucial for simulation stability and accuracy. There are a few steps that can help in correct circuit partitioning:

Check if there is a need for circuit partitioning
- identify which components have to be in different sub-circuits (different cores or devices)
Place the coupling components
- Find the best spot for the coupling
- Determine the correct coupling parameter value

When a TLM coupling is used, it is recommended to use the bilinear discretization method, but if the TLM inductance (capacitance) is relatively small, trapezoidal discretization can be used. TLM coupling is based on bilinear discretization and is more robust than Ideal Transformer coupling. TLM coupling in combination with the bilinear (trapezoidal) discretization method guarantees stability in most practical use cases, so there is no need for additional stability analysis.

Is there a need for circuit partitioning

Recommended places for TLM coupling components

Model Partitioning Components