Re: duplicate branch

2021-04-21 Thread naime ahmadi
; Dear Professor Zimmerman, > Thank you for your time. > Please confirm if my understanding is correct. > For this duplicate branch > 77 80 0.017 0.0485 0.0472 0 0 0 0 0 1 -360 360; > 77 80 0.0294 0.105 0.0228 0 0 0 0 0 1 -360 360; > > 1/r_t =1/ 0.017 +1/ 0.0294 ---> r_t=0.0108 *O

Re: duplicate branch

2021-04-20 Thread Ray Daniel Zimmerman
2021, at 11:37 AM, naime ahmadi mailto:naimeahm...@gmail.com>> wrote: Dear Professor Zimmerman, Thank you for your time. Please confirm if my understanding is correct. For this duplicate branch 77 80 0.017 0.0485 0.0472 0 0 0 0 0 1 -360 360; 77 80 0.0294 0.105 0.0228 0 0 0 0 0 1 -360 360

Re: duplicate branch

2021-04-19 Thread naime ahmadi
Dear Professor Zimmerman, Thank you for your time. Please confirm if my understanding is correct. For this duplicate branch 77 80 0.017 0.0485 0.0472 0 0 0 0 0 1 -360 360; 77 80 0.0294 0.105 0.0228 0 0 0 0 0 1 -360 360; 1/r_t =1/ 0.017 +1/ 0.0294 ---> r_t=0.0108 *OR* r_t = (0.017 + 0.0294

Re: duplicate branch

2021-04-19 Thread Ray Daniel Zimmerman
In general, the line ratings RATE_A, etc, would also equal the sum of the individual line ratings, but in this case the capacity limit is not given (interpreted as unlimited) so no change. However, a quick correction … while the total impedance (r and x) are halved, the total line charging (b)

duplicate branch

2021-04-19 Thread naime ahmadi
Hello Matpower users, I want to remove duplicate branches in IEEE 118 bus system and put an equivalent one. For example: fbus tbus rxb rateA rateB rateC ratio angle status angmin angmax duplicate branches: 42 49 0.0715 0.323 0.086 0 0 0 0 0 1 -360 360; 42 49 0.0715 0.323