I am simulating a Mechanical DC circuit breaker. I used a step to put on and off. I wanted to use a "compare to constant" block so that when the fault current goes over the threshold the ideal switch can trip. The step is connected to the ideal switch so I cannot connect a relay too. Any help will be much appreciated.
Thanks
Dear
Switch fault diagnosis and remedial actions are an important design aspect for isolated full-bridge dc-dc converters, and they can highly improve reliability of the whole system. In this paper, a fast switch short-circuit fault (SCF) diagnostic method is proposed for the phase-shifted full-bridge (PSFB) converter. The dc-link current and transformer primary voltage are treated as diagnosis criteria. Based on the combination of real-time criteria and switch gate-driver signals, the switch SCF can be identified rapidly, and thus further damage can be avoided. Besides, a remedial action for the faulty PSFB converter is introduced to keep the continuity of the system. The converter under fault can be reconfigured into an asymmetrical half-bridge converter. Moreover, a boost unit, including a switch and a diode, is inserted into between the output rectifier and filter capacitor to compensate the output voltage.
Hope this link will help you related to your question.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.researchgate.net/publication/273394820_Switch_Short-Circuit_Fault_Diagnosis_and_Remedial_Strategy_for_Full-Bridge_DC-DC_Converters&ved=2ahUKEwjxwvqawLjoAhVBzRoKHbmiC4cQFjACegQIAxAB&usg=AOvVaw1OovwnzHI3np21h-mFe_ms&cshid=1585238174433
If any question feel free to ask me.
Thanks.
Simply include a SWITCH block from Commonly used blocks of Simulink and connect its output terminal to the gate(g) terminal of breaker. Compare the current threshold value and feed the logical output which decide the switching conditions to the control input of SWITCH(2nd terminal). Add a constant zero to 1st input of the SWITCH, which will refer as the switching off criteria during fault exceeding threshold, whereas the 3rd terminal will be fed with the earlier Step signal.
Dear Muhamed Sidibeh
I agree with answer of Amar Kumar Barik , he explained will the syeps of adding conditional switch from Simulink
- Badges
- Science topic
- Similar topics
- Biological Science
- Bioecology
- Systems Ecology
- Landscape Ecology
- Connectivity