Home > matpower4.0 > runopf_w_res.m

runopf_w_res

PURPOSE ^

RUNOPF_W_RES Runs an optimal power flow with fixed zonal reserves.

SYNOPSIS ^

function [varargout] = runopf_w_res(varargin)

DESCRIPTION ^

RUNOPF_W_RES  Runs an optimal power flow with fixed zonal reserves.
   RESULTS = RUNOPF_W_RES(CASEDATA, MPOPT, FNAME, SOLVEDCASE)
   [RESULTS, SUCCESS] = RUNOPF_W_RES(CASEDATA, MPOPT, FNAME, SOLVEDCASE)

   Runs an optimal power flow with the addition of reserve requirements
   specified as a set of fixed zonal reserves. See RUNOPF for a
   description of the input and output arguments, which are the same,
   with the exception that the case file or struct CASEDATA must define
   a 'reserves' field, which is a struct with the following fields:
       zones   nrz x ng, zone(i, j) = 1, if gen j belongs to zone i
                                      0, otherwise
       req     nrz x 1, zonal reserve requirement in MW
       cost    (ng or ngr) x 1, cost of reserves in $/MW
       qty     (ng or ngr) x 1, max quantity of reserves in MW (optional)
   where nrz is the number of reserve zones and ngr is the number of
   generators belonging to at least one reserve zone and ng is the total
   number of generators.

   In addition to the normal OPF output, the RESULTS struct contains a
   new 'reserves' field with the following fields, in addition to those
   provided in the input:
       R       - ng x 1, reserves provided by each gen in MW
       Rmin    - ng x 1, lower limit on reserves provided by each gen, (MW)
       Rmax    - ng x 1, upper limit on reserves provided by each gen, (MW)
       mu.l    - ng x 1, shadow price on reserve lower limit, ($/MW)
       mu.u    - ng x 1, shadow price on reserve upper limit, ($/MW)
       mu.Pmax - ng x 1, shadow price on Pg + R <= Pmax constraint, ($/MW)
       prc     - ng x 1, reserve price for each gen equal to maximum of the
                         shadow prices on the zonal requirement constraint
                         for each zone the generator belongs to

   See T_CASE30_USERFCNS for an example case file with fixed reserves,
   and TOGGLE_RESERVES for the implementation.

   Calling syntax options:
       results = runopf_w_res(casedata);
       results = runopf_w_res(casedata, mpopt);
       results = runopf_w_res(casedata, mpopt, fname);
       results = runopf_w_res(casedata, mpopt, fname, solvedcase);
       [results, success] = runopf_w_res(...);

   Example:
       results = runopf_w_res('t_case30_userfcns');

   See also RUNOPF, TOGGLE_RESERVES, T_CASE30_USERFCNS.

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [varargout] = runopf_w_res(varargin)
0002 %RUNOPF_W_RES  Runs an optimal power flow with fixed zonal reserves.
0003 %   RESULTS = RUNOPF_W_RES(CASEDATA, MPOPT, FNAME, SOLVEDCASE)
0004 %   [RESULTS, SUCCESS] = RUNOPF_W_RES(CASEDATA, MPOPT, FNAME, SOLVEDCASE)
0005 %
0006 %   Runs an optimal power flow with the addition of reserve requirements
0007 %   specified as a set of fixed zonal reserves. See RUNOPF for a
0008 %   description of the input and output arguments, which are the same,
0009 %   with the exception that the case file or struct CASEDATA must define
0010 %   a 'reserves' field, which is a struct with the following fields:
0011 %       zones   nrz x ng, zone(i, j) = 1, if gen j belongs to zone i
0012 %                                      0, otherwise
0013 %       req     nrz x 1, zonal reserve requirement in MW
0014 %       cost    (ng or ngr) x 1, cost of reserves in $/MW
0015 %       qty     (ng or ngr) x 1, max quantity of reserves in MW (optional)
0016 %   where nrz is the number of reserve zones and ngr is the number of
0017 %   generators belonging to at least one reserve zone and ng is the total
0018 %   number of generators.
0019 %
0020 %   In addition to the normal OPF output, the RESULTS struct contains a
0021 %   new 'reserves' field with the following fields, in addition to those
0022 %   provided in the input:
0023 %       R       - ng x 1, reserves provided by each gen in MW
0024 %       Rmin    - ng x 1, lower limit on reserves provided by each gen, (MW)
0025 %       Rmax    - ng x 1, upper limit on reserves provided by each gen, (MW)
0026 %       mu.l    - ng x 1, shadow price on reserve lower limit, ($/MW)
0027 %       mu.u    - ng x 1, shadow price on reserve upper limit, ($/MW)
0028 %       mu.Pmax - ng x 1, shadow price on Pg + R <= Pmax constraint, ($/MW)
0029 %       prc     - ng x 1, reserve price for each gen equal to maximum of the
0030 %                         shadow prices on the zonal requirement constraint
0031 %                         for each zone the generator belongs to
0032 %
0033 %   See T_CASE30_USERFCNS for an example case file with fixed reserves,
0034 %   and TOGGLE_RESERVES for the implementation.
0035 %
0036 %   Calling syntax options:
0037 %       results = runopf_w_res(casedata);
0038 %       results = runopf_w_res(casedata, mpopt);
0039 %       results = runopf_w_res(casedata, mpopt, fname);
0040 %       results = runopf_w_res(casedata, mpopt, fname, solvedcase);
0041 %       [results, success] = runopf_w_res(...);
0042 %
0043 %   Example:
0044 %       results = runopf_w_res('t_case30_userfcns');
0045 %
0046 %   See also RUNOPF, TOGGLE_RESERVES, T_CASE30_USERFCNS.
0047 
0048 %   MATPOWER
0049 %   $Id: runopf_w_res.m,v 1.13 2010/04/26 19:45:25 ray Exp $
0050 %   by Ray Zimmerman, PSERC Cornell
0051 %   Copyright (c) 2008-2010 by Power System Engineering Research Center (PSERC)
0052 %
0053 %   This file is part of MATPOWER.
0054 %   See http://www.pserc.cornell.edu/matpower/ for more info.
0055 %
0056 %   MATPOWER is free software: you can redistribute it and/or modify
0057 %   it under the terms of the GNU General Public License as published
0058 %   by the Free Software Foundation, either version 3 of the License,
0059 %   or (at your option) any later version.
0060 %
0061 %   MATPOWER is distributed in the hope that it will be useful,
0062 %   but WITHOUT ANY WARRANTY; without even the implied warranty of
0063 %   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
0064 %   GNU General Public License for more details.
0065 %
0066 %   You should have received a copy of the GNU General Public License
0067 %   along with MATPOWER. If not, see <http://www.gnu.org/licenses/>.
0068 %
0069 %   Additional permission under GNU GPL version 3 section 7
0070 %
0071 %   If you modify MATPOWER, or any covered work, to interface with
0072 %   other modules (such as MATLAB code and MEX-files) available in a
0073 %   MATLAB(R) or comparable environment containing parts covered
0074 %   under other licensing terms, the licensors of MATPOWER grant
0075 %   you additional permission to convey the resulting work.
0076 
0077 mpc = loadcase(varargin{1});
0078 mpc = toggle_reserves(mpc, 'on');
0079 [varargout{1:nargout}] = runopf(mpc, varargin{2:nargin});
0080 
0081 if nargout > 0 && isstruct(varargout{1})
0082     varargout{1} = toggle_reserves(varargout{1}, 'off');
0083 end

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