DEVELOPMENT OF A DUAL MODE FREQUENCY CONTROLLER FOR STANDALONE, MICRO AND MINI HYDRO POWER SYSTEMS

The project is done on frequency controller for standalone micro and mini hydro power system that doesnot connected to grid. I want to work this project by using matlab code. For example the code I want to use is as below

%Program: This program plots the step response of frequency of mini %hydropower system with FCM for different heads

%load change = 3%

kp=1; %proportional gain

ki=kp/TI; % integral gain

Gen=tf(1,[2*5 1.5]); % synchronous generator %transfer function

% H = 5 sec and D = 1.5%

PMstepper=tf(200,[0.0013 0.5 200]);%transfer function of the stepper motor

PI=tf([kp ki],[1 0]); % PI controller low head mini hydropower system

Hturbine=tf([-1 1],[0.5 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response system

TI=8; % the integral time constant

kp=1; %proportional gain

ki=kp/TI; % integral gain

Gen=tf(1,[2*5 1.5]); % synchronous generator %transfer function

% H = 5 sec and D = 1.5%

PMstepper=tf(200,[0.0013 0.5 200]);%transfer function of the stepper motor

PI=tf([kp ki],[1 0]); % PI controller low head mini hydropower system

Hturbine=tf([-1 1],[0.5 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response system

hold on

% medium head mini hydropower

Hturbine=tf([-2.5 1],[1.25 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response

hold on

% high head mini hydropower system

Hturbine=tf([-4 1],[2 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response

hold on

ylabel('Frequency Deviation [Hz]');

xlabel('time');

legend('delPL=-14.76 kW','delPL=14.76 kW');

grid on

TI=8; % the integral time constant

kp=1; %proportional gain

ki=kp/TI; % integral gain

Gen=tf(1,[2*5 1.5]); % synchronous generator %transfer function

% H = 5 sec and D = 1.5%

PMstepper=tf(200,[0.0013 0.5 200]);%transfer function of the stepper motor

PI=tf([kp ki],[1 0]); % PI controller low head mini hydropower system

Hturbine=tf([-1 1],[0.5 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response system

hold on

% medium head mini hydropower

Hturbine=tf([-2.5 1],[1.25 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response

hold on

% high head mini hydropower system

Hturbine=tf([-4 1],[2 1]); %turbine transfer function

Hs=PI*PMstepper*Hturbine; %feedback transfer function

Gc=feedback(Gen,Hs); %Closed loop transfer function

step(-50*0.03*Gc) %Step response

hold on

ylabel('Frequency Deviation [Hz]');

xlabel('time');

legend('delPL=-14.76 kW','delPL=14.76 kW');

grid on

But now I want to control the frequency of standalone mini and micro hydro power by using MATLAB SIMULINK that looks like

Fig shows Simulationmodel of a small hydropower plants without controllers and

Fig shows Simulation model of a small hydropower plants with controllers

How I can model Simulation for standalone micro and mini hydro power

Answer 1

[Joel Van Sickel]

I realize this answer is likely too late to be of any use to you, but as your question is a good one and getting a number of views, here is the answer:

If you have a controller implemented in Matlab code like that, the easiest way to utilize it with a Simulink model is to use this block in Simulink and leave your controller code in Matlab.:

https://www.mathworks.com/help/simulink/ug/what-is-a-matlab-function-block.html