How to use matlab to simulate the relationship between torque, wind speed and rotational speed of wind power generation, you can proceed as follows:
First of all, you must have data, such as a set of torque, wind speed and rotational speed Experimental data (generally more than 10 sets of data, or more)
Second, you must understand which is the independent variable (such as wind speed and rotational speed) and which is the dependent variable (such as torque)
p>Third, initially determine whether the functional relationship between the independent variable and the dependent variable is a linear relationship or a non-linear relationship
Fourth, if it is a linear relationship, you can use regress() to fit it The coefficients of the functional relationship; if it is a non-linear relationship, you can use lsqcurvefit() or nlinfit() to fit the coefficients of the functional relationship
Fifth, the fitted data must be tested for correlation with the original data. That is, is the correlation coefficient R? close to 1?
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For wind turbines, when the speed is lower than the rated speed, can the torque be increased to increase the power?
The most direct purpose is to adjust the power, because the wind turbine needs to It works within a certain power range. Different wind speeds require adjusting the torque to make it work within a certain power range. Another purpose is its overload protection function. By adjusting the pitch, the torque is adjusted to make the wind turbine work in a safe range. .
The transmission system in the wind turbine,
the power system has a transmission system that drives the generator.
When the generator generates electricity, it will generate load, which is torque.
If the speed is constant, the load will be constant.
If the turning torque is increased, the speed of the transmission system will inevitably be increased.
The principle is that the faster the torque, the greater the processing. But he also takes into account the influence of speed setting and load.