ask in matpower

Dear professori need to get the current in each branch automatic after runpf what can i add to the following : [F_BUS, T_BUS, BR_R, BR_X, BR_B, RATE_A, RATE_B, RATE_C, ...    TAP, SHIFT, BR_STATUS, PF, QF, PT, QT, MU_SF, MU_ST, ...    ANGMIN, ANGMAX, MU_ANGMIN, MU_ANGMAX] = idx_brch;[PQ, PV, REF

ask in matpower

 1- i use version 3.2 matpower and i want to increase the number of iteration in "runpf" function but this errors appears  opt = mpoption(PF_MAX_IT, 20 ) ??? Undefined function or variable 'PF_MAX_IT'. >> runpf('case39',opt) ??? Undefined function or variable 'opt'. mpopt=mpoption(PF_MAX_IT,

ask in matpower

 dear sir   1- i use version 3.2 matpower  if i want to use version 4.1  what the equivalent for the following    1-   [F_BUS, T_BUS, BR_R, BR_X, BR_B, RATE_A, RATE_B, RATE_C, ...     TAP, SHIFT, BR_STATUS, PF, QF, PT, QT, MU_SF, MU_ST, ...     ANGMIN, ANGMAX, MU_ANGMIN, MU_ANGMAX] = idx_brch

ask in matpower

 dear sir I use case 39  which has wind at bus 37 the wind at bus 37 has positive active power and negative reactive power but when I use "runpf"   with change in active power to be 1.5 * its old value I find that reactive power (of bus 37) in the result of power flow becomes positive ??? h

Re: ask in matpower

Using these I, V and S to denote complex current, voltage and power, respectively. We have, by definition ... S = V * conj(I) … which can be re-written ... I = conj(S/V) So, we can compute them as follows (some of the following may require a new version of MATPOWER than 3.2) … define_constan

Re: ask in matpower

1. Please see the manual and help files for the functions for documentation. define_constants; results = runpf('case39'); H = results.branch(:, PF); V = results.bus(:, VM); 2. yes -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-

Re: ask in matpower

You need to put quotes around your string valued arguments … i.e. opt = mpoption('PF_MAX_IT', 20); -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Jun 12, 2013, at 10:27 AM, Mahmoud Abdallah wrote: > > 1- i use v

Re: ask in matpower

many thanks   Eng. Mahmoud abdallah Teaching Assistant Ain Shams University Faculty of Engineering From: Ray Zimmerman To: MATPOWER discussion forum Cc: "MATPOWER-L@cornell.edu" Sent: Friday, June 28, 2013 11:59 PM Subject: Re: ask in matp

Re: ask in matpower

Presumably it is specified as a PV bus, which means that you are asking the power flow program to solve for the reactive power required to maintain the specified voltage magnitude. Ray -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (

Re: ask in matpower

dear sir this bus has wind thus it can't produce reactive power all reactive power comes from the network to  bus 37 thus the reactive power in the power flow output should be negative  at bus 37 Eng. Mahmoud abdallah Teaching Assistant Ain Shams University Faculty of Engineering On Frida

Re: ask in matpower

The point of my previous post was that the power flow was doing what you told it to (assuming I was correct about you specifying it as a PV bus). If you want the power flow to solve for the voltage at the bus, given a specified reactive power injection (which is what you seem to be expecting), t

Re: ask in matpower

dear sir I don't want specify reactive power I only want the change in reactive power should be negative value thus I try to put the limit of  reactive power generated from bus 37  to be only negative for example from -4.4 to -4 but power flow not consider this limits what I can do to make t

Re: ask in matpower

>> Reply-To: MATPOWER discussion forum mailto:matpowe...@list.cornell.edu>> Date: Tue, 18 Feb 2014 05:00:50 -0800 To: MATPOWER discussion forum mailto:matpowe...@list.cornell.edu>> Subject: Re: ask in matpower dear sir I don't want specify reactive power I only want the c

Re: ask in matpower

To: MATPOWER discussion forum > Subject: Re: ask in matpower > > dear sir > I don't want specify reactive power > I only want the change in reactive power should be negative value > > thus I try to put the limit of reactive power generated from bus 37 to be > only neg

Re: ask in matpower

info. Shri From: Mahmoud Abdallah Reply-To: MATPOWER discussion forum Date: Tue, 18 Feb 2014 05:00:50 -0800 To: MATPOWER discussion forum Subject: Re: ask in matpower >dear sir >I don't want specify reactive power >I only want the change in reactive power should be

Re: ask in matpower

ption ENFORCE_Q_LIMS from the mpoption options database to set limits on the reactive power generation. Do help mpoption for more info. Shri From: Mahmoud Abdallah Reply-To: MATPOWER discussion forum Date: Tue, 18 Feb 2014 05:00:50 -0800 To: MATPOWER discussion forum Subject: Re: ask in mat

Re: ask in matpower

e power generation. Do help mpoption for more info. > > Shri > > From: Mahmoud Abdallah > Reply-To: MATPOWER discussion forum > Date: Tue, 18 Feb 2014 05:00:50 -0800 > To: MATPOWER discussion forum > Subject: Re: ask in matpower > > dear sir > I don't want spe

Re: ask in matpower

not enforce gen. reactive power limits. But you >can use the option ENFORCE_Q_LIMS from the mpoption options database to set >limits on the reactive power generation. Do help mpoption for more info. > > >Shri > > >From: Mahmoud Abdallah >Reply-To: MATPOWER discussion fo

Re: ask in matpower 3.2

mailto:mahmoud_abdallah2...@yahoo.com>> Reply-To: MATPOWER discussion forum mailto:matpowe...@list.cornell.edu>> Date: Thursday, December 31, 2015 at 1:03 PM To: "MATPOWER-L@cornell.edu<mailto:MATPOWER-L@cornell.edu>" mailto:MATPOWER-L@cornell.edu>> Subject: ask in matpower 3.2 Dea