Error "Derived parameter initialization for Vbe_sat failed to converge"
조회 수: 2 (최근 30일)
이전 댓글 표시
Hi there,
I'm trying to model an IGBT using the N-Channel IGBT block (simscape electrical library), but I obtained the above mentioned error. From what I've observed it seems that the error is related to the value that I introduced in the "Collector current at which VCE(sat) is defined" parameter where I put 1.000A (same value as in the datasheet).
I'm using the Full I-V and capacitance characteristics variant and concretely equivalent circuit based on a PNP bipolar transistor and N-channel MOSFET mode.
These are the values that I've introduced in the main tab:
Ices: 10mA
Voltage at which Ices is defined: 1700V
Vge(th): 6.5V
Vce(sat): 2.15V
Collector current at which Vce(sat) is defined: 1000A
Gate-emitter voltage at which Vce(sat) is defined: 15V
Temperature: 150
Is there someone who knows how to solve the error?
Thank you in advance,
Ander.
댓글 수: 0
채택된 답변
Joel Van Sickel
2020년 12월 22일
Hello Ander,
the issue is that RC and RE need to be lower to calculate a realistic Vbe-sat. I believe it needs to be lower than Vce. To do this, lower the values in the advanced tap of RC and RE. I tried lowering them both by a factor of 100 and was able to get it to work.
Regards,
Joel
댓글 수: 0
추가 답변 (0개)
커뮤니티
더 많은 답변 보기: Power Electronics Community
참고 항목
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!