Add dead time in Simulink

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Jiaxiu Dong
Jiaxiu Dong 2018-12-14
评论： Lazuardi Agung 2022-12-17
Hi, I am trying to control an H bridge cell. So in order to avoid two swithes turn ON at the same time, I need to add the dead time. I would expect a similar waveform as below. Does anyone konw how to achieve this in Simulink? Thank you so much!
pwm-complementary-outputs-dead-time.svg

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采纳的回答

Rick Hyde
Rick Hyde 2021-11-12
We now have the Gate Driver and Half-Bridge Drive blocks in Simscape™ Electrical™ which allow you to specify dead-time/blanking time in a numerically efficient way. Please see the screenshot below. Hope you find this solution useful.
Rick
  2 个评论
Nueraimaiti Aimaier
Nueraimaiti Aimaier 2022-10-10
Hi,
This is helpful, thanks. However, what kind of ports (or devices) should be connect to the output of Driver? I used Simulink-PS converter for the input, it can be connected. But, at the output, I used PS-Simulink converter and it cannot connected to Simulink signal MOSFET.
Rick Hyde
Rick Hyde 2022-10-17
The output pins of the driver block should be directly connected to Simscape electrical ports on semiconductor device models in the Simscape Electrical library.

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更多回答（3 个）

Yonghui Xu
Yonghui Xu 2019-3-28
Add following blocks to your switching signal path and you can set the deadtime by setting the time delay of the transport dealy block.
Dead_Time.JPG
Mark Sherstan
Mark Sherstan 2018-12-14
  5 个评论
显示 3更早的评论
Zoe Blatsi
Zoe Blatsi 2020-6-4
Hello,
I tried this for my discrete time PWM model:
and it seems to be working alright:
you could even configure a variable delay in the "delay" block settings.
I hope that helps.
Zoe

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Lazuardi Agung
Lazuardi Agung 2022-12-17
thanks, for solving my problem. by just adding transport delay block we can easyly add dead time control

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