FMU 블락과 함께 해석시 Solver Options -> Type은 어떤 것을 선택해야 하는가?

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기랑 강
기랑 강 on 23 Dec 2022
Answered: Aritra on 21 Mar 2023
FMU 블락과 함께 해석시 Solver Options -> Type은 어떤 것을 선택해야 하나요?
Variable step/ Fixed step 둘다 되나요?
FMU는 Co-simulation 특성을 가지고 있습니다.

Answers (1)

Aritra on 21 Mar 2023
As per my understanding you are trying to choose a solver for the FMU block.
A solver applies different numerical methods to solve the set of differential equations that represent the model. However, no single method of solving a model applies to all systems.
The appropriate solver for simulating a model depends on these characteristics:
  • System dynamics.
  • Solution stability.
  • Computation speed.
  • Solver robustness.
You can choose the solver based on the dynamics of your model.
  • A variable step solver is better suited for purely continuous models, like the dynamics of a mass spring damper system.
  • A fixed step solver is recommended for a model that contains several switches, like an inverter power system.
For detail, please see this MathWorks documentation below for more information on “Choose a Solver”:
You can also refer to the MathWorks documentation for more information on “Use Local Solvers in Referenced Models”:

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