电流预测控制simulink仿真，帮忙解释一下！！！！

xueshoudaoke

最近在做电流预测控制算法，在本论坛找到了这个模型，想研究一下，有些问题需要大家给予解释一下，在此谢谢大家了！！！！！我把预测控制器的代码给贴在下面，谁能给我解释一下？
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
4 b2 M0 S' D  k  @/ O% This function contains the algorithm for the predictive current control
% of a two-level voltage source inverter.
% Inputs:
# G: A$ [' q1 {%   I_ref   := Two-element vector containing the reference current in
, B; J$ a0 B* o( U%              alpha-beta coordinates.
%   I_meas  := Two-element vector containing the measured current in
4 p% k  i& d5 A% }* \4 c%              alpha-beta coordinates.
% Parameters (defined in the file parameters.m):
%   R       := Load resistance
%   L       := Load inductance
%   Ts      := Sampling time
%   v       := Eight-element vector containing the voltage vectors that can
- F  F1 e4 V1 E: x3 F1 O+ s! i%              be generated by the inverter, in alpha-beta coordinates.
/ f8 G: }# M# t' w# N5 m- A" F%   states  := Eight-by-three array containing the switching states for
%              each voltage vector.
% Outputs:
4 O8 e- p" k0 c1 I; r. t%   [Sa, Sb, Sc] := switching state corresponding to the optimum vector to
%                   be applied in the next sampling period.
9 I- |' `- D/ K8 j2 t' }* j%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function [Sa,Sb,Sc] = control(I_ref,I_meas,R,L,Ts,v,states)
# O) t. r, F9 d7 y7 g% Optimum vector and measured current at instant k-1
6 a, _0 x- c( `) d( t9 {8 B* opersistent x_old i_old
% Initialize values
if isempty(x_old), x_old = 1; end
) L# V$ s) ^+ ^% @& u* {& K6 eif isempty(i_old), i_old = 0+1j*0; end
g = zeros(1,8);
% Read current reference inputs at sampling instant k
ik_ref = I_ref(1) + 1j*I_ref(2);
% Read current measurements at sampling instant k
$ [: j! l& h. R8 {* Gik = I_meas(1) + 1j*I_meas(2);
% Back-EMF estimate
5 Y! g3 _! Q. e" e0 p7 I8 oe = v(x_old) - L/Ts*ik - (R - L/Ts)*i_old;
  e6 Q: a4 S" Y  r% Store the measured current for the next iteration
9 E& R( m- w9 x6 B5 \# @i_old = ik;
for i = 1:8
- u6 e# C0 \' w; ?8 {/ e8 J    % i-th voltage vector for current prediction
4 Y. `# L5 r' |* i) _    v_o1 = v(i);
/ R: I- b- G& t8 @; M    % Current prediction at instant k+1
    ik1 = (1 - R*Ts/L)*ik + Ts/L*(v_o1 - e);
    % Cost function
    g(i) = abs(real(ik_ref - ik1)) + abs(imag(ik_ref - ik1));
. n0 T# W8 G" N% v9 z& B4 Lend
% Optimization
[~,x_opt] = min(g);
% Store the present value of x_opt
x_old = x_opt;
% Output switching states
Sa = states(x_opt,1);
Sb = states(x_opt,2);
' ^* I' X- D  @/ iSc = states(x_opt,3);