How to connect subsystems with different sample times in simulink

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mayaka moses 2020-7-8

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回答： Sabin 2024-1-22

Hi there!

I am developing a solid state transformer using rectifier-DAB-inverter approach. Each subsystem has its own sample time, so i use different powerguis in the subsytems. The problem is that the model is not running as desired, yet each independent subsystem tested independently works perfect. what could be the problem?

someone mentioned about using the rate transition block but it cannot be connected between subsystems.

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mayaka moses 2020-7-17

can I share my model so that you can look at it?

mayaka moses 2020-7-17

I cannot use atomic subsystem because of the diodes in the system.

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Sabin 2024-1-22

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Running the system at same (fastest) rate while having different PWM switching frequency and different sampling for the control algorithm should work. The model may be slightly slower but should perform as desired.

If Simscape technology (blue blocks) is used it is possible to use Network Couplers to split physical networks:

https://www.mathworks.com/help/simscape/ug/using-network-couplers-to-split-physical-networks.html