newton-raphson maylab COD with YBUS calculatour: Build up admittance matrix function [YR,YI] = YBus(tlsend,tlrec,tlresis,tlreac,tlsuscep,tlcond,shbus,shresis,shreac,ntl,nbb,nsh) YR=zeros(nbb,nbb) YI=zeros(nbb,nbb) Transmission lines contribution for kk = 1: ntl ii = tlsend(kk) jj = tlrec(kk) denom = tlresis(kk)^2+tlreac(kk)^2 YR(ii,ii) = YR(ii,ii) + tlresis(kk)/denom + 0.5*tlcond(kk) YI(ii,ii) = YI(ii,ii) - tlreac(kk)/denom + 0.5*tlsuscep(kk) YR(ii,jj) = YR(ii,jj) - tlresis(kk)/denom YI(ii,jj) = YI(ii,jj) + tlreac(kk)/denom YR(jj,ii) = YR(jj,ii) - tlresis(kk)/denom YI(jj,ii) = YI(jj,ii) + tlreac(kk)/denom YR(jj,jj) = YR(jj,jj) + tlresis(kk)/denom + 0.5*tlcond(kk) YI(jj,jj) = YI(jj,jj) - tlreac(kk)/denom + 0.5*tlsuscep(kk) end Shunt elements contribution for kk = 1: nsh ii = shbus(kk) denom = shresis(kk)^2+shreac(kk)^2 YR(ii,ii) = YR(ii,ii) + shresis(kk)/denom YI(ii,ii) = YI(ii,ii) - shreac(kk)/denom end End of function YBus

NewtoRaphson\CalculatedPowers.m
............\GeneratorsLimits.m
............\main.m
............\NetPowers.m
............\NewtonRaphson.m
............\NewtonRaphsonJacobian.m
............\PowerMismatches.m
............\PQflows.m
............\StateVariablesUpdates.m
............\YBus.m

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