opf

I have a doubt regarding the LMPs in an IEEE-14 bus system.In 14 bus system there are no loads at 7th and 8th buses but there is LMP value which is equal at both buses. How it is possible.

opf

sir In IEEE-14 bus system the active power at some buses is zero but there is reactive power exists.How it is possible

OPF

Hi Dear Community, I have a strange question about OPF. If I use a solver like fmincon with Interior Point algorithm in MATLAB optimization toolbox to solve runpf('case30') with objective of loss minimization (Pgen_total - Pdemand_total ) and considering Pg in all PV-buses as control

OPF

Respected  Sir, I want to execute OPF using AI method. For IEEE 30 bus test system, i want to reschedule voltage of generator connected at bus 2. so in the program, which entry should be changed? --Bus(2, VM) or gen(2, VG)? thanks in advance

OPF

Hello all, I have the simplest OPF problem, but I can't get matpower to do it for me. I would appreciate if someone could help me. I have attached a figure of the system. Here is the description of the system: 4 buses including 1 generator and 3 load buses: mpc.bus = [ 130

OPF

Hello, I have been reading the manual of MP specifically the opf. It seems that opf optimizes the cost. Am I right? How can I optimize the power lose regardless of cost? How can I add other objective functions to Matpower? Thx OOzy

AC OPF vs DC OPF in MOST

Hello all i wanted to compare between AC OPF results and DC OPF results using MOST My code for AC OPF is: define_constants; verbose = 1; mpopt = mpoption('verbose', verbose); mpopt = mpoption(mpopt, 'out.gen', 1); mpopt = mp

Extensible OPF

Dear sir, I want to do the extensible OPF, and I read paper MATPOWER’s Extensible Optimal Power Flow Architecture. The objective function is min f(x)+fu(x,z),and fu=sum(ci*ri), following the code: Ar = [I I]; om = add_vars(om, 'R', ng, [], Rmin, Rmax); om = add_constraints(om, '

OPF problem

Dear All, I am working with congestion management using generation rescheduling technique for that i want to know power flows for all the lines this can be achieved by using AC OPF. I considered PJM 5-Bus system and run AC OPF, the OPF result shows that there is branch flow

dynamic OPF

Greetings, I wonder can matpower OPF solve dynamic OPF problem: the optimal schedule of generators over 24 hrs to minimize the total cost? In additon to static OPF of each hr constraints, ramping constraints need to be satified (the generator cannot increase/decrease too much power within short

dynamic OPF

Greetings, I wonder can matpower OPF solve dynamic OPF problem: the optimal schedule of generators over 24 hrs to minimize the total cost? In addition to static OPF of each hr constraints, ramping constraints need to be satisfied (the generator cannot increase/decrease too much power within

Re: opf

The LMP are shadow prices (Lagrange multipliers) on the active nodal balance. Even if there is no load at a bus, its balance equation must still be fulfilled and it carries with it a multiplier in the lagrangian function. Mounika Vanjarapu wrote: I have a doubt regarding the LMPs in an IEEE-1

Re: opf

If you’re asking how it is possible for MATPOWER to give that result, the answer is that those are inputs … and MATPOWER solves the problem you give it. If you want to know why case14 was created with PG = 0 for 3 of its 5 generators … see my answer to another post about an hour or so ago

Re: OPF

Yes, this is an Optimal Power Flow, with a specific objective function and specific bounds on the optimization variables. Ray > On Aug 4, 2017, at 8:41 AM, Ehsan Hejri wrote: > > Hi Dear Community, > > I have a strange question about OPF. > > If I use a sol

Re: OPF

Dear Prof. Zimmerman, Thanks for the answer. I have read some previews discussion about OPF. It is mentioned that in OPF we do not care about type of buses (PQ or PV). But in my case we use runpf function to find OPF and for runpf, type of node is important.This method is still correct? Best

Re: OPF

Ok. I didn’t catch that you are using runpf() as a subroutine called by fmincon(). I’m not surprised this works, and of course it can be considered a “correct” OPF. But, as you say, it’s much less efficient than what I thought you were doing which is something like ... define_constants; mpopt

ABOUT OPF

Hello sir, currently, I am working on optimal power flow with additional voltage stability constraint. so for this, I have a function for calculating voltage stability index. Now, is it possible to add this extra variable to OPF as a constraint? please guide me for how can I start my work with

Unconstrained OPF

Dear all, is it possible to caclculate unconstrained opf in matpower? I set all line flows on value zero, but results are same as in original file. Best regards, Emir

opf matpower

hello I'm student of electrical engeenearing.Ihave some questions about opf at matpower.at"poewer system analysis" by Johnj.grainger and WilliamD.Stevenson- i understood for computation lambda we have gencost function (Quadratic function like   C= aP^2 +bP+c) and lambda=

opf matpower

hello I'm student of electrical engeenearing.Ihave some questions about opf at matpower.at"poewer system analysis" by Johnj.grainger and WilliamD.Stevenson- i understood for computation lambda we have gencost function (Quadratic function like   C= aP^2 +bP+c) and lam

Extended OPF

hi all Can I use Extended OPF for security constrainted OPF? thanks  

OPF problem

fuel for generating power depending of its price. For example, only gas, gas and coal, gas and diesel, only coal, etc. For modeling this situation and run a DC OPF, we can add a row for each combination on the 'gen' and 'gen cost' matrix. The problem appears when different combi

OPF problem

fuel for generating power depending of its price. For example, only gas, gas and coal, gas and diesel, only coal, etc. For modeling this situation and run a DC OPF, we can add a row for each combination on the 'gen' and 'gen cost' matrix. The problem appears when different combi

Re: OPF

You are correct. And MATPOWER's OPF solvers assume continuous cost functions. -- Ray Zimmerman Senior Research Associate 211 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Jun 13, 2011, at 11:53 AM, HOSSEIN SHARIFZADEH wrote: > Dear Dr Zimmerman > &g

OPF questions

Dear All, I have two short questions if I may. 1st: Is there a way to tell to the opf function to disregard the power limits of Generators (min/max) or the branch flow limits? Or I have to change the limits myself accrdingly in the system struct before I run a new OPF? 2nd: I realised that the

Multiperiod OPF

Dear Mr. Zimmermann, I am working with Matpower since many years and really appreciate your great work! I am currently working on multiperiod OPF problems and would like to know if there is already an implementation in matpower for this issue. Maybe you already have some unreleased code (from

Re: OPF

Neither. The OPF already optimizes the voltage dispatch within the limits set. So if you want to set a specific voltage at a bus for an OPF problem you want to set bus(2, VMIN) = bus(2, VMAX) = . -- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853

tsc opf

Dear sir, Do you have a copy of tsc opf ? -- - schools of electrical engineering and automation ,Tsinghua University,China.. At 2013-06-14 17:17:48,"Cédric Josz" wrote: Hi Ray, I'm getting back to you on

Re: OPF

t; I have the simplest OPF problem, but I can't get matpower to do it for me. > I would appreciate if someone could help me. > > I have attached a figure of the system. Here is the description of the > system: > > 4 buses including 1 generator and 3 load buses: > > mpc.bu

Re: OPF

_q apf > mpc.gen = [ > 1 2 0 100 -100 1.02 100 1 318 0 0 0 0 0 0 0 0 0 0 0 0; > ]; > > Please find attached the case modeling and the results, > > best regards > > > On 16 December 2013 10:48, Arash Alimardani wrote: > >> Hello all, >> >> I have t

OPF convergence

Dear matpower community, I have a simple 4 bus system with 3 branches to deal with. The figure of the system is attached, and here is the data of it: mpc.baseMVA = 1; mpc.bus = [ 1300001100111; 22000011-2

Multiobjective OPF

Dear Matpower users, Does anybody know how can I implement a multiobjective OPF in MATPOWER? Best regards Carlos

Fuzzy OPF

Dear Friends Because of uncertainty in load and generation , I need to use fuzzy OPF and fuzzy Load flow. Could you help me with a sample file or a method to use MATPOWER in this situation? Best Regards

Re: OPF

From: OOzy Pal mailto:oozy...@gmail.com>> Reply-To: MATPOWER discussion forum mailto:matpowe...@list.cornell.edu>> Date: Fri, 21 Feb 2014 22:30:15 +0300 To: mailto:MATPOWER-L@cornell.edu>> Subject: OPF Hello, I have been reading the manual of MP specifically the opf.

Reg OPF

I want to run OPF on 30-bus system by adding a wind plant and a storage on two diff buses. How to model such system.Can I add a Generator at bus which is not a gen Bus ? I have the manual provided with the MATPOWER package,is there any other document which can provide more clear picture about

OPF problem

Hi, I am new at using Matpower and I have two questions: 1. I tried to launch an OPF but I wanted it to only vary the reactive power of the generators to get to a solution, thus I put Pmax, Pmin and Pg to the same values. Apparently I cannot do that because I get the following error message

Re: AC OPF vs DC OPF in MOST

ling of the network. Some work has been done on an AC implementation, but it is not yet ready for release. Maybe someday … but currently, MOST is limited to a DC model of the network. — Ray > On Nov 19, 2017, at 12:42 PM, Mohammed Alhajri wrote: > > Hello all > > i wanted to com

Re: AC OPF vs DC OPF in MOST

the > network. > > — Ray > > > > On Nov 19, 2017, at 12:42 PM, Mohammed Alhajri wrote: > > Hello all > > i wanted to compare between AC OPF results and DC OPF results using MOST > > My code for AC OPF is: > > +

Re: AC OPF vs DC OPF in MOST

Actually our target is to do an economic dispatch for a given network in presence of Solar PV Power We want to do the ED for multiple periods,24hr, and we want to use AC OPF to compare the simulation results with the practical results is there any way to do this task? بتاريخ ٢٠١٧/١١/٢١ ٨:١٧ م

Re: AC OPF vs DC OPF in MOST

Not without writing your own code to do it. Check the MATPOWER-L archives for multi-period OPF. For example … https://www.mail-archive.com/matpower-l@cornell.edu/msg00702.html <https://www.mail-archive.com/matpower-l@cornell.edu/msg00702.html> — Ray > On Nov 21, 2017, at

Sequential OPF: Non-convergence of both OPF and PF

Dear All MATPOWER developers and users, I really hope some of you can give me some advice. I am working on sequential OPF simulations (not using MOST, but simply running MATPOWER's runopf in a loop and manually updating some values the MATPOWER case at each time-step t) to be performed on a c

Problems with OPF

A) imposed in the OPF problem, so I would expect the runopf >function to converge. Instead the OPF run function does not converge. What could it be due to? Diego

Re: Extensible OPF

Hi Yang, It’s not clear whether you simply want to use the fixed reserves extension (see Section 7.6.1 in the MATPOWER User’s Manual<https://matpower.org/docs/MATPOWER-manual-7.0.pdf>) or you want to implement your own OPF extension. In the first case you can simply use runopf_w_res().

Re:Re: Extensible OPF

s for your patience and guidance. Warm regards. Yang. At 2020-01-03 01:36:43, "Ray Daniel Zimmerman" wrote: Hi Yang, It’s not clear whether you simply want to use the fixed reserves extension (see Section 7.6.1 in the MATPOWER User’s Manual) or you want to implement your own O

Re:Re: Extensible OPF

*Pi^2)+(αi+βi*Pi+γi*Pi^2+μi*exp(ηi*Pi))]}}. Thanks again. At 2020-01-03 01:36:43, "Ray Daniel Zimmerman" wrote: Hi Yang, It’s not clear whether you simply want to use the fixed reserves extension (see Section 7.6.1 in the MATPOWER User’s Manual) or you want to implement your ow

Re: Extensible OPF

to implement your own OPF extension. In the first case you can simply use runopf_w_res(). In the second, please see Chapter 7 and the code for the various extensions described in Section 7.6.    Ray On Dec 25, 2019, at 8:11 PM, Yang mailto:yang_hong_...@163.com>> wrote:

Re:Re: Extensible OPF

t;Ray Daniel Zimmerman" wrote: Hi Yang, It’s not clear whether you simply want to use the fixed reserves extension (see Section 7.6.1 in the MATPOWER User’s Manual) or you want to implement your own OPF extension. In the first case you can simply use runopf_w_res(). In the second, please

Re:Re: Extensible OPF

6.1 in the MATPOWER User’s Manual) or you want to implement your own OPF extension. In the first case you can simply use runopf_w_res(). In the second, please see Chapter 7 and the code for the various extensions described in Section 7.6. Ray On Dec 25, 2019, at 8:11 PM, Yang wrote: D

Re: Extensible OPF

s/MATPOWER-manual-7.0.pdf>) or you want to implement your own OPF extension. In the first case you can simply use runopf_w_res(). In the second, please see Chapter 7 and the code for the various extensions described in Section 7.6. Ray On Dec 25, 2019, at 8:11 PM, Yang mailto:yang_hon

Re:Re: Extensible OPF

e, how can I do this ? Thanks. At 2020-01-03 01:36:43, "Ray Daniel Zimmerman" wrote: Hi Yang, It’s not clear whether you simply want to use the fixed reserves extension (see Section 7.6.1 in the MATPOWER User’s Manual) or you want to implement your own OPF extension. In the

Re: Extensible OPF

ection 7.6.1 in the MATPOWER User’s Manual<https://matpower.org/docs/MATPOWER-manual-7.0.pdf>) or you want to implement your own OPF extension. In the first case you can simply use runopf_w_res(). In the second, please see Chapter 7 and the code for the various extensions described in S

Re:Re: Extensible OPF

Dear Ray, Thanks for your reply. I understand your explain, and I have new problem as following: 1. May I make OPF be a dynamic model? I want to implement it in typhoon situation, like at t=1, it's normal; at t=2, the load of branch 1 needs to decraese 10%; at t=3, the load of bra

Re: Extensible OPF

>> wrote: Dear Ray, Thanks for your reply. I understand your explain, and I have new problem as following: 1. May I make OPF be a dynamic model? I want to implement it in typhoon situation, like at t=1, it's normal; at t=2, the load of branch 1 needs to decraese 10%; at t=3, the load

Re:Re: Extensible OPF

mples, to get a feel for what it can do. Ray On Jan 30, 2020, at 4:36 AM, Yang wrote: Dear Ray, Thanks for your reply. I understand your explain, and I have new problem as following: 1. May I make OPF be a dynamic model? I want to implement it in typhoon situation, like at t=1, it&#

question about OPF

Hi all Does Matpower have any method to calculate the optimal power flow within 24 hours, with a period of 1 hour, considering the influence of generator slope climbing and landslide. Thank you very much.

question about OPF

Hi all How to use Matpower to model reactive power planning? Thank you very much.

Opf convergence problem

Dear all, I can’t get the convergence for the OPF on a radial distribution network described by the mpc file that I attached. The power flow with this case file converge and all the voltage busses are between without violating any costraints. The OPF doesn’t converge with the standard voltage

Re: OPF problem

The OPF constraints the flows in the lines to not exceed their limits, so if it converges, there is no excess flow. See Tables 4-1 and 6-1 in the User’s Manual <http://www.pserc.cornell.edu/matpower/docs/MATPOWER-manual-5.1.pdf> for details of the results struct and where the resulting

OPF question convergence

(casefile,mpoption('OUT_ALL', 0, 'VERBOSE', 0, 'OPF_FLOW_LIM', 2)); So then, after the simulation ends, I wanted to see why the OPF did not converge, but, when I opened matlab and loaded the casefile, this one succeeded So I just did: load casefile;resultsOP

Opf convergence problem

Dear all, I have a convergence problem when running the OPF. When I used the Matpower vesion 4.1 my casefile converged in pf but not in opf. I have recently installed the new version of Matpower 5.1 and when running the opf I get the following message which I do not understand: ??? Error

OPF and LMP

Hello everyone, I am a bit confused about the lamda value that results from running an opf. Are these results the locational marginal prices for the buses? Can you also tell me when a user added function is optimized. Is it optimized alongside the fuel costs or are the processes two different

Re: dynamic OPF

This problem will be handled by MOST (MATPOWER Optimal Scheduling Tool), which will be included in the imminent MATPOWER 6. Ray > On May 17, 2016, at 4:40 PM, Bai, Wenlei wrote: > > Greetings, > I wonder can matpower OPF solve dynamic OPF problem: the optimal schedule of

matpower opf problem

sir, in my 5 bus system the power is running but not the optimal power flow. please check what is the problem in program , I have attached my matpower file function mpc = add_userfuc(casem5) mpc.version = '2'; mpc.baseMVA = 100; %No. Bus Pmin Pmax Marginal Cost % bus_i type Pd Qd Vm Va Vmax V

OPF control variables

Dear Ray, I noticed that when I 'results = runopf('case')', I am able to find the control variables by 'results.x'; however, the control variables consist of all the bus angles, bus voltages, P output from generator buses(including slack bus), and reactive power Q from generator buses (includ

change objective OPF

Dear, I have implemented the two area kundur topology in the matpower software. I can successfully run a PF and OPF. My next goal is the change the objective of the OPF so that the voltages on the busses are as close to unity as possible independently from the cost of the generators. For this

constraints of OPF

Hello, I am trying to solve an OPF problem where all the PV nodes are fixed to a certain power and voltage by an equality constraints, and only the slack bus is left free. The power consumed by the loads (including losses) is more than the fixed values of the generators but less than the total

OPF 'Numerically Failed'

Hello all I tried to do OPF for my network but i get Numerically Failed! i have already relaxed the voltage constrain, but the problem is still there My *.m file is attached, can anyone help me? OETC_OPF.m Description: Binary data

Re: ABOUT OPF

.com>> wrote: > > Hello sir, > > currently, I am working on optimal power flow with additional voltage > stability constraint. > so for this, I have a function for calculating voltage stability index. > > Now, is it possible to add this extra variable to OPF as a constra

Re: ABOUT OPF

voltage stability index. > > Now, is it possible to add this extra variable to OPF as a constraint? > please guide me for how can I start my work with manpower. > > thank you. > > >

Re: ABOUT OPF

rote: >> >> Hello sir, >> >> currently, I am working on optimal power flow with additional voltage >> stability constraint. >> so for this, I have a function for calculating voltage stability index. >> >> Now, is it possible to add this extra variable to OPF as a constraint? >> please guide me for how can I start my work with manpower. >> >> thank you. >

Re: ABOUT OPF

gt; >> Ray >> >> >> On Jan 7, 2019, at 5:46 AM, Pranami Kuldip wrote: >> >> Hello sir, >> >> currently, I am working on optimal power flow with additional voltage >> stability constraint. >> so for this, I have a function for calculatin

Re: ABOUT OPF

Hello Dear I also want to add some constraints related with renewable energy in the master OPF problem. Help needed in this regards. Best regards Fouad Hasan On Tue, Jan 29, 2019 at 4:20 AM Pranami Kuldip wrote: > Dear Sir, > > I had gone through this MATPOWER 7.0b1. section 6.3.2 an

Re: ABOUT OPF

There is an example of adding constraints by direct specification in the OPF test files, for example see t_opf_default.m starting at line 229 <https://github.com/MATPOWER/matpower/blob/7841457957251b3135bd3a534bbc171ae672957a/lib/t/t_opf_default.m#L229>. Ray > On Jan 30, 2019, a

Re: ABOUT OPF

n Fri, 1 Feb 2019, 9:14 pm Ray Zimmerman There is an example of adding constraints by direct specification in the > OPF test files, for example see t_opf_default.m starting at line 229 > <https://github.com/MATPOWER/matpower/blob/7841457957251b3135bd3a534bbc171ae672957a/lib/t/t_opf_default

OPF - user constraints

Hello, I have a question regarding the use of user_function_constraints in na OPF. Is it possible for the OPF to converge and not complying to an user constraint (for example using "add_userfcn(mpc,'formulation',@userfcn_constraints_formulation,args)"? Thank you for y

OPF - user constraints

Hello, I have a question regarding the use of user_function_constraints in na OPF. Is it possible for the OPF to converge and not complying to an user constraint (for example using “add_userfcn(mpc,'formulation',@userfcn_constraints_formulation,args)”? Thank you for your attent

Least squares OPF

Dear All, I am currently working on extensions of OPF problem and got one question. Could you please advise if Matpower provides any possibility for easy coding of "least squares" OPF problems of the following form: Minimize sum( (P_setpoint^i - P_G^i)^2+(Q_setpoint^i

Re: Unconstrained OPF

o caclculate unconstrained opf in matpower? > I set all line flows on value zero, but results are same as in original file. > > Best regards, > > Emir >

Re: Unconstrained OPF

you . best regards On Tue, Sep 11, 2018 at 12:30 PM Emir Ćosić wrote: > Dear all, > is it possible to caclculate unconstrained opf in matpower? > I set all line flows on value zero, but results are same as in original > file. > > Best regards, > > Emir > >

Configuration of OPF

Dear all, I have been tried to solve the OPF problem with GAMS. In GAMS the problem configuration is just like what printed on paper and books. In Matpower, where could find these Equation and inequality formulations. Thanks in advance! Best regards!

OPF Bench mark

Hi all I need a OPF benchmark with its data thanks

Re: matpower opf

On Jul 4, 2008, at 2:10 AM, hamid tahery2009 wrote: hello I'm student of electrical engeenearing.Ihave some questions about opf at matpower.at"poewer system analysis" by Johnj.grainger and WilliamD.Stevenson- i understood for computation lambda we have gencost function (Qua

problem with OPF

Dear everyone, I would like to seek your advice and suggestion. I use MatPower V.3.2 to simulate my 30 buses system, and I faced two problems which I am not sure about the cause. The first problem is that system does not converge. Maximum number of iteration exceeded. The second problem is th

Voltages in OPF

calculate other two. So at PV bus voltage is fixed and it can not change. But why in OPF the voltage even at the PV bus changes? I know optimization is performed on a bigger space but even then the power flow equations have to be satisfied in OPF. And what are the variable quantities at the buses

Re: Extended OPF

MATPOWER does not included security constrained OPF directly, but you may be able to formulation some security constraints as additional linear restrictions on the OPF variables. In that case, you can use the extended OPF to add those constraints. -- Ray Zimmerman Senior Research Associate 211

Re: Extended OPF

Dear professor I want to simulate your paper A Transient Stability Constrained Optimal Power Flow please guide me --- On Mon, 11/1/10, Ray Zimmerman wrote: From: Ray Zimmerman Subject: Re: Extended OPF To: "MATPOWER discussion forum" Date: Monday, November 1, 2010, 9:28 PM MAT

Re: Extended OPF

/1/10, Ray Zimmerman mailto:r...@cornell.edu>> wrote: From: Ray Zimmerman mailto:r...@cornell.edu>> Subject: Re: Extended OPF To: "MATPOWER discussion forum" mailto:matpower-l@list.cornell.edu>> Date: Monday, November 1, 2010, 9:28 PM MATPOWER does not included security co

Extending the OPF

Hi all I am interested to add an objective function to the OPF formulation. The objective of the function is to minimize the deviation of the power exchange (active and reactive) between areas in a big power system, calculation the deviation from the start point. The main idea is maintain the

Re: OPF problem

gas and diesel, only coal, > etc. > > For modeling this situation and run a DC OPF, we can add a row for each > combination on the 'gen' and 'gen cost' matrix. The problem appears when > different combinations are possible but these are not feasible in t

Multi period OPF

Dear Prof. Zimmeman, Could please let me know how can I implement multi period OPF in MATPOWER? How can I change the objective function? Best Wishes Roberto

OPF with UPFC

Sir, I want to implement a opf with UPFC device in a power system and obtain a OPF solution.Can it be done with matpower? Can you help me in this case,please.

Re: OPF questions

On Sep 30, 2012, at 3:06 PM, Evangelos Galinas wrote: > 1st: Is there a way to tell to the opf function to disregard the power limits > of Generators (min/max) or the branch flow limits? Or I have to change the > limits myself accrdingly in the system struct before I run a new OPF?

RE: OPF questions

). So in order to make my code more eefficient and avoid all these checks is there a way to get to know if at least one constraint got violated, for example somehow accessing these extra prints? Thanks once more, Vagelis From: r...@cornell.edu Subject: Re: OPF questions Date: Mon, 1 Oct 2012 10

Re: OPF questions

No, as I said below "If the OPF converges successfully all constraints will be satisfied." In other words, if success = 1 there should be no violated constraints. The extra printout is for binding constraints. These are not violated, they are simply operating at their specified limit

Re: Multiperiod OPF

We do have unreleased research code related to multi period OPF … but it is not released for a reason. ;-) You may have already seen this post that outlines the approach I would take … http://www.mail-archive.com/matpower-l@list.cornell.edu/msg00702.html -- Ray Zimmerman Senior Research

Re: Multiperiod OPF

Betreff: Re: Multiperiod OPF We do have unreleased research code related to multi period OPF … but it is not released for a reason. ;-) You may have already seen this post that outlines the approach I would take … http://www.mail-archive.com/matpower-l@list.cornell.edu/msg00702.html --  Ray

Re: tsc opf

I assume you mean transient-stability constrained OPF? No, I do not. -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Jun 15, 2013, at 11:50 AM, 舒 wrote: > > Dear sir, > Do you have a copy o

OPF on matpower

Dear Dr Zimmerman, Running an OPF in matpower means that 1. Bus types play no role (eg slack, PV, PQ etc) 2. All values for Real Power generation and reactive power generation are unknown 3. All values for bus_voltages and voltage phase angles in buses, are unknown as well 4. As a result

OPF Vs. PF

Dear All, Dr Zimmerman once said: "The power flow solver does not redispatch generation in order to respect the line flow limits specified in branch(:, RATE_A). For that, you will need to use the OPF." But for some reason I don't want to use OPF! .Has anyone written a code to u

Extending the OPF

Hello! I'm trying to use the callback functions of the Extended OPF in order to add variable, constraints and costs to my case, but in spite of reading your manual and papers for about one month I can't use them all together yet! I'm afraid, could you please give me just a very

  1   2   3   4   5   6   7   8   9   >