UPDATE_MUPQ Updates values of generator limit shadow prices. GEN = UPDATE_MUPQ(BASEMVA, GEN, MU_PQH, MU_PQL, DATA) Updates the values of MU_PMIN, MU_PMAX, MU_QMIN, MU_QMAX based on any shadow prices on the sloped portions of the generator capability curve constraints. MU_PQH - shadow prices on upper sloped portion of capability curves MU_PQL - shadow prices on lower sloped portion of capability curves DATA - "data" struct returned by MAKEAPQ See also MAKEAPQ.
0001 function gen = update_mupq(baseMVA, gen, mu_PQh, mu_PQl, data) 0002 %UPDATE_MUPQ Updates values of generator limit shadow prices. 0003 % GEN = UPDATE_MUPQ(BASEMVA, GEN, MU_PQH, MU_PQL, DATA) 0004 % 0005 % Updates the values of MU_PMIN, MU_PMAX, MU_QMIN, MU_QMAX based 0006 % on any shadow prices on the sloped portions of the generator 0007 % capability curve constraints. 0008 % 0009 % MU_PQH - shadow prices on upper sloped portion of capability curves 0010 % MU_PQL - shadow prices on lower sloped portion of capability curves 0011 % DATA - "data" struct returned by MAKEAPQ 0012 % 0013 % See also MAKEAPQ. 0014 0015 % MATPOWER 0016 % Copyright (c) 1996-2016, Power Systems Engineering Research Center (PSERC) 0017 % by Ray Zimmerman, PSERC Cornell 0018 % and Carlos E. Murillo-Sanchez, PSERC Cornell & Universidad Nacional de Colombia 0019 % 0020 % This file is part of MATPOWER. 0021 % Covered by the 3-clause BSD License (see LICENSE file for details). 0022 % See https://matpower.org for more info. 0023 0024 %% extract the constraint parameters 0025 [ipqh, ipql, Apqhdata, Apqldata] = ... 0026 deal(data.ipqh, data.ipql, data.h, data.l); 0027 0028 %% define named indices into data matrices 0029 [GEN_BUS, PG, QG, QMAX, QMIN, VG, MBASE, GEN_STATUS, PMAX, PMIN, ... 0030 MU_PMAX, MU_PMIN, MU_QMAX, MU_QMIN, PC1, PC2, QC1MIN, QC1MAX, ... 0031 QC2MIN, QC2MAX, RAMP_AGC, RAMP_10, RAMP_30, RAMP_Q, APF] = idx_gen; 0032 0033 %% combine original limit multipliers into single value 0034 muP = gen(:, MU_PMAX) - gen(:, MU_PMIN); 0035 muQ = gen(:, MU_QMAX) - gen(:, MU_QMIN); 0036 0037 %% add P and Q components of multipliers on upper sloped constraint 0038 if ~isempty(ipqh) 0039 muP(ipqh) = muP(ipqh) - mu_PQh .* Apqhdata(:,1)/baseMVA; 0040 muQ(ipqh) = muQ(ipqh) - mu_PQh .* Apqhdata(:,2)/baseMVA; 0041 end 0042 0043 %% add P and Q components of multipliers on lower sloped constraint 0044 if ~isempty(ipql) 0045 muP(ipql) = muP(ipql) - mu_PQl .* Apqldata(:,1)/baseMVA; 0046 muQ(ipql) = muQ(ipql) - mu_PQl .* Apqldata(:,2)/baseMVA; 0047 end 0048 0049 %% split back into upper and lower multipliers based on sign 0050 gen(:, MU_PMAX) = (muP > 0) .* muP; 0051 gen(:, MU_PMIN) = (muP < 0) .* -muP; 0052 gen(:, MU_QMAX) = (muQ > 0) .* muQ; 0053 gen(:, MU_QMIN) = (muQ < 0) .* -muQ;