SMALL HYDROPOWER FREQUENCY PREDICTION METHOD TAKING FREQUENCY CHANGE TREND INTO CONSIDERATION

A small hydropower frequency prediction method taking a frequency change trend into consideration. A frequency change in an interval time limit m is predicted by means of a detection time limit T; and a detection frequency calculated by means of a start frequency and an end frequency is the average frequency per second, such that the amount of calculation is reduced, and an algorithm is simple. Moreover, since a water turbine has an inertia effect, a frequency does not change dramatically within a short period of time. The frequency of an interval time limit m is predicted by means of a detection time limit T, such that a prediction result is accurate. By means of predicting a change trend of a small hydropower frequency in advance, same is adjusted in advance, such that a future dramatic change in the frequency is eliminated or reduced, thereby ensuring the efficiency of power utilization and improving the stability of same. L'invention concerne un petit procédé de prédiction de fréquence d'une petite centra