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function t_pf(quiet) %T_PF Tests for power flow solvers. % MATPOWER % $Id: t_pf.m,v 1.11 2011/05/17 15:42:07 cvs Exp $ % by Ray Zimmerman, PSERC Cornell % Copyright (c) 2004-2010 by Power System Engineering Research Center (PSERC) % % This file is part of MATPOWER. % See http://www.pserc.cornell.edu/matpower/ for more info. % % MATPOWER is free software: you can redistribute it and/or modify % it under the terms of the GNU General Public License as published % by the Free Software Foundation, either version 3 of the License, % or (at your option) any later version. % % MATPOWER is distributed in the hope that it will be useful, % but WITHOUT ANY WARRANTY; without even the implied warranty of % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the % GNU General Public License for more details. % % You should have received a copy of the GNU General Public License % along with MATPOWER. If not, see <http://www.gnu.org/licenses/>. % % Additional permission under GNU GPL version 3 section 7 % % If you modify MATPOWER, or any covered work, to interface with % other modules (such as MATLAB code and MEX-files) available in a % MATLAB(R) or comparable environment containing parts covered % under other licensing terms, the licensors of MATPOWER grant % you additional permission to convey the resulting work. if nargin < 1 quiet = 0; end t_begin(33, quiet); casefile = 't_case9_pf'; if quiet verbose = 0; else verbose = 1; end if have_fcn('octave') s1 = warning('query', 'Octave:load-file-in-path'); warning('off', 'Octave:load-file-in-path'); end mpopt = mpoption('OUT_ALL', 0, 'VERBOSE', verbose); %% define named indices into bus, gen, branch matrices [PQ, PV, REF, NONE, BUS_I, BUS_TYPE, PD, QD, GS, BS, BUS_AREA, VM, ... VA, BASE_KV, ZONE, VMAX, VMIN, LAM_P, LAM_Q, MU_VMAX, MU_VMIN] = idx_bus; [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; [GEN_BUS, PG, QG, QMAX, QMIN, VG, MBASE, GEN_STATUS, PMAX, PMIN, ... MU_PMAX, MU_PMIN, MU_QMAX, MU_QMIN, PC1, PC2, QC1MIN, QC1MAX, ... QC2MIN, QC2MAX, RAMP_AGC, RAMP_10, RAMP_30, RAMP_Q, APF] = idx_gen; %% get solved AC power flow case from MAT-file load soln9_pf; %% defines bus_soln, gen_soln, branch_soln %% run Newton PF t = 'Newton PF : '; mpopt = mpoption(mpopt, 'PF_ALG', 1); [baseMVA, bus, gen, branch, success, et] = runpf(casefile, mpopt); t_ok(success, [t 'success']); t_is(bus, bus_soln, 6, [t 'bus']); t_is(gen, gen_soln, 6, [t 'gen']); t_is(branch, branch_soln, 6, [t 'branch']); %% run fast-decoupled PF (XB version) t = 'Fast Decoupled (XB) PF : '; mpopt = mpoption(mpopt, 'PF_ALG', 2); [baseMVA, bus, gen, branch, success, et] = runpf(casefile, mpopt); t_ok(success, [t 'success']); t_is(bus, bus_soln, 6, [t 'bus']); t_is(gen, gen_soln, 6, [t 'gen']); t_is(branch, branch_soln, 6, [t 'branch']); %% run fast-decoupled PF (BX version) t = 'Fast Decoupled (BX) PF : '; mpopt = mpoption(mpopt, 'PF_ALG', 3); [baseMVA, bus, gen, branch, success, et] = runpf(casefile, mpopt); t_ok(success, [t 'success']); t_is(bus, bus_soln, 6, [t 'bus']); t_is(gen, gen_soln, 6, [t 'gen']); t_is(branch, branch_soln, 6, [t 'branch']); %% run Gauss-Seidel PF t = 'Gauss-Seidel PF : '; mpopt = mpoption(mpopt, 'PF_ALG', 4); [baseMVA, bus, gen, branch, success, et] = runpf(casefile, mpopt); t_ok(success, [t 'success']); t_is(bus, bus_soln, 5, [t 'bus']); t_is(gen, gen_soln, 5, [t 'gen']); t_is(branch, branch_soln, 5, [t 'branch']); %% get solved AC power flow case from MAT-file load soln9_dcpf; %% defines bus_soln, gen_soln, branch_soln %% run DC PF t = 'DC PF : '; [baseMVA, bus, gen, branch, success, et] = rundcpf(casefile, mpopt); t_ok(success, [t 'success']); t_is(bus, bus_soln, 6, [t 'bus']); t_is(gen, gen_soln, 6, [t 'gen']); t_is(branch, branch_soln, 6, [t 'branch']); %% check Qg distribution, when Qmin = Qmax t = 'check Qg : '; mpopt = mpoption(mpopt, 'PF_ALG', 1, 'VERBOSE', 0); mpc = loadcase(casefile); mpc.gen(1, [QMIN QMAX]) = [20 20]; [baseMVA, bus, gen, branch, success, et] = runpf(mpc, mpopt); t_is(gen(1, QG), 24.07, 2, [t 'single gen, Qmin = Qmax']); mpc.gen = [mpc.gen(1, :); mpc.gen]; mpc.gen(1, [QMIN QMAX]) = [10 10]; mpc.gen(2, [QMIN QMAX]) = [0 50]; [baseMVA, bus, gen, branch, success, et] = runpf(mpc, mpopt); t_is(gen(1:2, QG), [10; 14.07], 2, [t '2 gens, Qmin = Qmax for one']); mpc.gen(1, [QMIN QMAX]) = [10 10]; mpc.gen(2, [QMIN QMAX]) = [-50 -50]; [baseMVA, bus, gen, branch, success, et] = runpf(mpc, mpopt); t_is(gen(1:2, QG), [12.03; 12.03], 2, [t '2 gens, Qmin = Qmax for both']); mpc.gen(1, [QMIN QMAX]) = [0 50]; mpc.gen(2, [QMIN QMAX]) = [0 100]; [baseMVA, bus, gen, branch, success, et] = runpf(mpc, mpopt); t_is(gen(1:2, QG), [8.02; 16.05], 2, [t '2 gens, proportional']); mpc.gen(1, [QMIN QMAX]) = [-50 0]; mpc.gen(2, [QMIN QMAX]) = [50 150]; [baseMVA, bus, gen, branch, success, et] = runpf(mpc, mpopt); t_is(gen(1:2, QG), [-50+8.02; 50+16.05], 2, [t '2 gens, proportional']); %% network with islands t = 'network w/islands : DC PF : '; mpc0 = loadcase(casefile); mpc0.gen(1, PG) = 60; mpc0.gen(1, [PMIN PMAX QMIN QMAX PG QG]) = mpc0.gen(1, [PMIN PMAX QMIN QMAX PG QG]) / 2; mpc0.gen = [mpc0.gen(1, :); mpc0.gen]; mpc1 = mpc0; mpc = mpc0; nb = size(mpc.bus, 1); mpc1.bus(:, BUS_I) = mpc1.bus(:, BUS_I) + nb; mpc1.branch(:, F_BUS) = mpc1.branch(:, F_BUS) + nb; mpc1.branch(:, T_BUS) = mpc1.branch(:, T_BUS) + nb; mpc1.gen(:, GEN_BUS) = mpc1.gen(:, GEN_BUS) + nb; mpc.bus = [mpc.bus; mpc1.bus]; mpc.branch = [mpc.branch; mpc1.branch]; mpc.gen = [mpc.gen; mpc1.gen]; %mpopt = mpoption(mpopt, 'OUT_BUS', 1, 'OUT_GEN', 1, 'OUT_ALL', -1, 'VERBOSE', 2); mpopt = mpoption(mpopt, 'VERBOSE', verbose); r = rundcpf(mpc, mpopt); t_is(r.bus( 1:9, VA), bus_soln(:, VA), 8, [t 'voltage angles 1']); t_is(r.bus(10:18, VA), bus_soln(:, VA), 8, [t 'voltage angles 2']); Pg = [gen_soln(1, PG)-30; 30; gen_soln(2:3, PG)]; t_is(r.gen(1:4, PG), Pg, 8, [t 'active power generation 1']); t_is(r.gen(5:8, PG), Pg, 8, [t 'active power generation 1']); t = 'network w/islands : AC PF : '; %% get solved AC power flow case from MAT-file load soln9_pf; %% defines bus_soln, gen_soln, branch_soln r = runpf(mpc, mpopt); t_is(r.bus( 1:9, VA), bus_soln(:, VA), 8, [t 'voltage angles 1']); t_is(r.bus(10:18, VA), bus_soln(:, VA), 8, [t 'voltage angles 2']); Pg = [gen_soln(1, PG)-30; 30; gen_soln(2:3, PG)]; t_is(r.gen(1:4, PG), Pg, 8, [t 'active power generation 1']); t_is(r.gen(5:8, PG), Pg, 8, [t 'active power generation 1']); if have_fcn('octave') warning(s1.state, 'Octave:load-file-in-path'); end t_end;