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58 lines
2.6 KiB
58 lines
2.6 KiB
function [YshInd0,Yshind1]=getLinearInterpolatorInd(nbus,ind,s0,sNew)
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% Simplify induction motor as variant admittance model
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%
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% FUNCTION getLinearInterpolatorInd
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%
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% Author: Rui Yao <ruiyao@ieee.org>
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%
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% Copyright (C) 2021, UChicago Argonne, LLC. All rights reserved.
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%
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% OPEN SOURCE LICENSE
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%
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% Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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%
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% 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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% 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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% 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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%
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%
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% ******************************************************************************************************
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% DISCLAIMER
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%
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% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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% WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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% PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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% DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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% PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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% CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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% OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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% ***************************************************************************************************
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%
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% INPUT
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% nbus - number of buses in the system
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% ind - induction motor data
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% s0 - initial slip
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% sNew - updated slip
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%
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% OUTPUT
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% YshInd0 - equivalent admittance corresponding to slip s0
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% Yshind1 - the change of equivalent admittance from slip s0 to sNew
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%
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nInd=size(ind,1);
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indIdx=ind(:,1);
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Z1=ind(:,7)+1j*ind(:,8);
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Ze=1j*ind(:,13);
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R2=ind(:,9);
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X2=ind(:,10);
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Zind0=Z1+Ze.*(R2+1j*X2.*s0)./(R2+(Ze+1j*X2).*s0);
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Yind0=1./Zind0;
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ZindNew=Z1+Ze.*(R2+1j*X2.*sNew)./(R2+(Ze+1j*X2).*sNew);
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YindNew=1./ZindNew;
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YshInd0=accumarray(indIdx,Yind0,[nbus,1]);
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Yshind1=accumarray(indIdx,YindNew-Yind0,[nbus,1]);
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end |