unit1.pas

PID算法

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,PID, StdCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Button1: TButton;
    Button2: TButton;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Edit5: TEdit;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  //PID:TPID;
implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  PID:=TPID.Create;
  pid.sp:=50;
  pid.pv:=20;
  pid.errormin:=10;
  pid.errormax:=90;
  pid.error_1:=0;
  pid.umax:=90;
  pid.umin:=10;
  pid.U_1:=0;
  pid.Kp:=0;
  pid.Ti:=1000;
  pid.Td:=0;
  pid.T:=0.1;
  pid.deadband:=1;
  pid.Ui_sum:=0;
  pid.U_1:=0;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  self.Close;
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  res:single;
begin
  pid.pv:=strtofloat(edit1.Text);
  pid.Kp:=strtofloat(edit3.Text);
  pid.Ti:=strtofloat(edit4.Text);
  pid.Td:=strtofloat(edit5.Text);
  res:=pid.pidcontrol();
  edit2.Text:=floattostr(pid.Ui_sum);  
  Label1.Caption:=floattostr(res);
end;

end.