Re: Line loading limit

2017-04-19 Thread Abhyankar, Shrirang G.
ilto:matpowe...@list.cornell.edu>> Date: Wednesday, April 19, 2017 at 1:32 AM To: MATPOWER discussion forum mailto:matpowe...@list.cornell.edu>> Subject: Re: Line loading limit and what in case of 'rundcopf' On Wed, Apr 19, 2017 at 11:39 AM, Abhyankar, Shrirang G. mailto:abhy...@anl.g

Re: Line loading limit

2017-04-18 Thread Akash Tyagi
and what in case of 'rundcopf' On Wed, Apr 19, 2017 at 11:39 AM, Abhyankar, Shrirang G. wrote: > runpf does not enforce any line limits. You need to run optimal power flow > (runopf). > > Shri > > From: Akash Tyagi > Reply-To: MATPOWER discussion forum > Date: Tuesday, April 18, 2017 at 9:57 P

Re: Line loading limit

2017-04-18 Thread Abhyankar, Shrirang G.
runpf does not enforce any line limits. You need to run optimal power flow (runopf). Shri From: Akash Tyagi mailto:akashtyagi0...@gmail.com>> Reply-To: MATPOWER discussion forum mailto:matpowe...@list.cornell.edu>> Date: Tuesday, April 18, 2017 at 9:57 PM To: MATPOWER discussion forum mailto:m

Re: Line loading

2012-10-03 Thread Ray Zimmerman
When using AC modeling, the power flow is complex and it is not that same at the two ends of a branch, so you may want to use the average MVA as the flow. define_constants; r = runpf(…); Af = sqrt(r.branch(:, PF)^2 + r.branch(:, QF)^2); At = sqrt(r.branch(:, PT)^2 + r.branch(:, QT)^2); flow = (Af

RE: Line loading

2012-10-01 Thread Evangelos Galinas
Hallo Basem, I guess, except if it's already somewhere else calculated, you can just grab the abs(mpc.branch(:,14)) (power injected at one end)and divide by the mpc.branch(:,6) (rating A). I Fot the losses just calculate the current and multiply it by the losses and save it at some vector chee

Re: Line Loading

2011-03-22 Thread Mohsen Rezaie
Thank you --- On Mon, 3/21/11, Ray Zimmerman wrote: From: Ray Zimmerman Subject: Re: Line Loading To: "MATPOWER discussion forum" Date: Monday, March 21, 2011, 9:21 PM The apparent power flow (MVA flow) at the "from" and "to" ends of each line can be computed a

Re: Line Loading

2011-03-21 Thread Ray Zimmerman
The apparent power flow (MVA flow) at the "from" and "to" ends of each line can be computed as ... define_constants; results = runopf(...); MVA_flow_from = sqrt(results.branch(:, PF).^2 + results.branch(:, QF).^2); MVA_flow_to = sqrt(results.branch(:, PT).^2 + results.branch(:, QT).^2); -- Ra