PLECS中仿真双boost无桥PFC遇到的问题

使用里面demo提供的仿真模型，关于PI,PR控制器的参数他是如下计算的，也确实有了比较好的结果，那些计算公式是单纯的经验公式，有具体出处或者相关推导吗
Vin = 120*sqrt(2); % Grid voltage (V)
F = 60.0; % Grid frequency (Hz)

% Plant
C = 300e-6; % Output capacitor (C)
L = 5e-4;   % Choke inductance (H)
Rl = 0.001; % Choke resistance (ohms)

fs = 100e3; % Switching frequency (Hz)

% Current Compensator
Ri.F = 50e3;       % Current control loop frequency (Hz)
Ri.Ts = 1/Ri.F;    % Sample time
Ri.Tp = Ri.Ts/2.0; % Average PWM delay (s)

Ri.Ti = 2/Rl*Ri.Tp;
Ri.Tn = L/Rl;

Ri.Kp = Ri.Tn/Ri.Ti;  %50
Ri.Ki = 1/Ri.Ti;   %100

% Voltage Compensator
Rv.F = 2e3;         % Voltage control loop frequency (Hz)
Rv.Ts = 1/Rv.F;           % Sample time
Rv.Tp = Rv.Ts/2*10; % Equivalent delay

Rv.Ti = 8/C*Rv.Tp*Rv.Tp;
Rv.Tn = 4*Rv.Tp;

Rv.Kp = Rv.Tn/Rv.Ti; %0.045
Rv.Ki = 1/Rv.Ti;  %4.5