Error ("fis cannot evaluate") when designing a fuzzy logic controller for BLDC motor

Question

Delphin Rose 2012-1-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/25809-error-fis-cannot-evaluate-when-designing-a-fuzzy-logic-controller-for-bldc-motor

编辑： Sam Chak 2024-8-28

I am a Master of Engineering student and i am doing project on "Sensorless speed control of BLDC motor using fuzzy logic controller". I design fuzzy logic controller, but while running, there is an error ("fis cannot evaluate"). How to overcome this? Can anybody help me to send your simulation file for my reference?...... Thank you.

2 个评论
显示无隐藏无

SHUBHAM SINGH 2017-3-24

just double click on fuzzy controller in model file and 'controller-name.fis' where controller is the name of the controller by which you save your controller and just remember one thing that the fuzzy controller is in the same folder in which your model file is present.

K RAJAMOHANA 2021-3-3

Now, i'm working in 3-phase bldc motor.. i have choosen the motor rating of 24V, 60W, 1500 RPM for my harware implementation. But, i met one problem in parameter setting in simulink block like stator rsistance, inductance, inertia, viscous damping, static friction, flux linkage established by magnets, torque constrant, voltage constant likewise..kindly give any suggestion for my case...

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Manikandan 2012-10-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/25809-error-fis-cannot-evaluate-when-designing-a-fuzzy-logic-controller-for-bldc-motor#answer_63460

first you need to import and export the fis file, i know the fuzzy working but i need sensorless control of BLDC motor drive. if you ready i give fis files if you give sensorless BLDC drive .mdl maen. i wait your reply.

Reg, R.manikanan, ME.,(Ph.D) AP/EEE The Kavery Engineering College Salem dt. Tamil Nadu. India Cell:9944270473 Email: electricmani@yahoo.co.in

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

Asegid Tefera 2024-4-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/25809-error-fis-cannot-evaluate-when-designing-a-fuzzy-logic-controller-for-bldc-motor#answer_1441721

编辑：Sam Chak 2024-8-28

在 MATLAB Online 中打开

% Line and bus data
LD = [1 1 2 0.0678 0.2345; 
    2 1 3 0.094 0.1752; 
    3 1 4 0.092 0.1750; 
    4 2 5 0.90 0.1748; 
    5 2 6 0.92 0.1752; 
    6 2 7 0.04356 0.3467; 
    7 2 8 0.098 0.15; 
    8 3 9 0.096 0.14; 
    9 3 10 0.098 0.15; 
    10 3 11 0.00483 0.08987; 
    11 4 12 0.98 0.15];
% Bus data
BD = [1 0 0; 
    2 1.840 0.460; 
    3 0.980 0.340; 
    4 1.790 0.446; 
    5 1.598 1.840; 
    6 1.610 0.600; 
    7 0.780 0.110; 
    8 1.150 0.060; 
    9 0.980 0.130; 
    10 1.640 0.200; 
    11 0.980 0.130; 
    12 0.980 0.130];
% Number of buses
num_buses = size(BD, 1);
% Compute power injections at each bus
P_injection = zeros(num_buses, 1);
for i = 1:size(BD, 1)
    P_injection(i) = BD(i, 2);
end
% Compute power flow in each line
P_flow = zeros(size(LD, 1), 1);
for i = 1:size(LD, 1)
    from_bus = LD(i, 2);
    to_bus = LD(i, 3);
    reactance = LD(i, 5);
    voltage_diff = abs(BD(from_bus, 2) - BD(to_bus, 2));
    P_flow(i) = voltage_diff / reactance;
end
% Calculate voltage stability index
VSI = max(P_flow) / max(P_injection);
disp(['Voltage Stability Index: ', num2str(VSI)]);
Voltage Stability Index: 5.559