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run_observer.m
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run_observer.m
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% This is a nonlinear observer (or a pseudo simSES kind of function to use
% not approximated versions of the functions.
%
% Author: VK
% Date : ?
nonsv.dth = 1/32; % 3 minutes time step for nonlinear observer execution.
nonsv.Nh = SimulSettings.noDays_all*24/nonsv.dth;
nonsv.N_control = SimulSettings.noDays_control*24/nonsv.dth;
nonsv.N = arbj.dth/nonsv.dth;
% It should be a whole number otherwise mod(i,nonsv.N)==0 is not satisfied at all.
assert(floor(nonsv.N)==nonsv.N,'nonsv.N must be a whole number\n');
if(nonsv.initialized == 0)
% If the function is not run then get initial values from defined
% values in the .m files.
nonsv.optResults = cell(SimulSettings.p_loop_len, 1);
p_loop = 1;
nonsv.i = 1;
nonsv.bat.I_cell = zeros(nonsv.Nh, 1);
nonsv.bat.Pnett = zeros(nonsv.Nh, 1);
nonsv.AC.Pnett = zeros(nonsv.Nh, 1);
nonsv.AC.P_loss = zeros(nonsv.Nh, 1);
nonsv.bat.dT = zeros(nonsv.Nh, 1);
nonsv.bat.P_cell = zeros(nonsv.Nh, 1);
nonsv.bat.k_cyc_low_T_high_SOC = zeros(nonsv.Nh, 1);
nonsv.bat.k_cyc_high_T = zeros(nonsv.Nh, 1);
nonsv.bat.k_cyc_low_T = zeros(nonsv.Nh, 1);
nonsv.bat.k_cal = zeros(nonsv.Nh, 1);
nonsv.bat.dSOHcal = zeros(nonsv.Nh, 1);
nonsv.bat.dSOHcyc = zeros(nonsv.Nh, 1);
nonsv.bat.Tk = zeros(nonsv.Nh+1, 1);
nonsv.bat.Cbatt = zeros(nonsv.Nh+1, 1);
nonsv.bat.C_nom = zeros(nonsv.Nh+1, 1);
nonsv.bat.SOH = zeros(nonsv.Nh+1, 1);
nonsv.bat.SOC = zeros(nonsv.Nh+1, 1);
nonsv.bat.Tk(1) = arbj.bat.Tk0;
nonsv.bat.Cbatt(1) = arbj.bat.Cbatt0; %arbj.bat.Cbatt0;
nonsv.bat.C_nom(1) = arbj.bat.C_nom;
nonsv.bat.SOH(1) = arbj.bat.SOH0;
nonsv.bat.SOC(1) = nonsv.bat.Cbatt(1)/nonsv.bat.C_nom(1);
nonsv.bat.C_batt_for_optimizer = nonsv.bat.Cbatt(1) - nonsv.bat.C_nom(1)*arbj.bat.SOCmin;
nonsv.initialized = 1;
% For limiting purposes:
nonsv.limits.is_exceeded = false(nonsv.Nh,1); % True if battery limits exceeded and trimmed.
% nonsv.limits.max.C_batt = zeros(nonsv.Nh,1);
% nonsv.limits.max.I_cell = zeros(nonsv.Nh,1);
% nonsv.limits.max.P_cell = zeros(nonsv.Nh,1);
elseif(nonsv.initialized ==1)
nonsv.j = 1;
nonsv.sol{p_loop} = sol;
for i=nonsv.i:(nonsv.i+nonsv.N_control-1)
% Here must be some limiting, otherwise battery SOC surpasses 100%
nonsvLimits;
nonsv.AC.P_loss(i) = func.nonsv.only_PE_loss(nonsv.AC.Pnett(i));
nonsv.bat.Pnett(i) = nonsv.AC.Pnett(i) - nonsv.AC.P_loss(i);
nonsv.bat.P_cell(i) = func.PkW_to_Pt(nonsv.bat.Pnett(i));
nonsv.bat.I_cell(i) = func.It(nonsv.bat.P_cell(i),...
nonsv.bat.SOC(i),...
nonsv.bat.Tk(i));
nonsv.bat.dT(i) = func.dTcell0_Pt(nonsv.bat.P_cell(i),...
nonsv.bat.SOC(i),...
nonsv.bat.Tk(i));
% Current>0 condition is embedded in these functions.
nonsv.bat.k_cyc_high_T(i) = func.k_cyc_high_T(nonsv.bat.I_cell(i),nonsv.bat.Tk(i)) ;
nonsv.bat.k_cyc_low_T(i) = func.k_cyc_low_T(nonsv.bat.I_cell(i),nonsv.bat.Tk(i)) ;
nonsv.bat.k_cyc_low_T_high_SOC(i) = func.k_cyc_low_T_high_SOC(nonsv.bat.I_cell(i),nonsv.bat.SOC(i),nonsv.bat.Tk(i));
nonsv.bat.k_cal(i) = func.k_cal(nonsv.bat.SOC(i),nonsv.bat.Tk(i));
nonsv.bat.dSOHcal(i) = norm(nonsv.bat.k_cal,2)*sqrt(nonsv.dth);
nonsv.bat.dSOHcyc(i) = norm(nonsv.bat.k_cyc_high_T.*sqrt(abs(nonsv.bat.I_cell)))*sqrt(nonsv.dth)+...
norm(nonsv.bat.k_cyc_low_T.*sqrt(abs(nonsv.bat.I_cell)))*sqrt(nonsv.dth) +...
norm(nonsv.bat.k_cyc_low_T_high_SOC.*nonsv.bat.I_cell,1)*nonsv.dth;
nonsv.bat.SOH(i+1) = nonsv.bat.SOH(1) - nonsv.bat.dSOHcal(i) - nonsv.bat.dSOHcyc(i);
% Update next terms:
nonsv.bat.Cbatt(i+1) = nonsv.bat.Cbatt(i) + nonsv.dth*nonsv.bat.I_cell(i);
nonsv.bat.Tk(i+1) = nonsv.bat.Tk(i) + nonsv.dth*3600*nonsv.bat.dT(i);
nonsv.bat.C_nom(i+1) = nonsv.bat.SOH(i+1)* nonsv.bat.C_nom(1);
nonsv.bat.SOC(i+1) = nonsv.bat.Cbatt(i+1)/nonsv.bat.C_nom(i+1);
if(nonsv.bat.SOC(i+1)>1)
nonsv.bat.SOC(i+1) = 1;
nonsv.limits.is_exceeded(i) = true;
end
nonsv.bat.C_batt_for_optimizer = nonsv.bat.Cbatt(i+1) - nonsv.bat.C_nom(i+1)*arbj.bat.SOCmin;
if(mod(i,nonsv.N)==0)
nonsv.j = nonsv.j+1;
end
end
nonsv.i = i+1;
elseif(nonsv.initialized==-1)
% Read from checkpoint:
temp = load(SimulSettings.path.checkpoints.current, "nonsv");
nonsv = mergeStructs(nonsv, temp.nonsv, SimulSettings.isCheckpointsActive);
load(SimulSettings.path.checkpoints.current, "p_loop");
nonsv.initialized = 1;
else
error('nonsv.initialized value is unknown.\n');
end