SMALL HYDROPOWER FREQUENCY PREDICTION METHOD TAKING FREQUENCY CHANGE TREND INTO CONSIDERATION

WIPO Patent Application WO/2023/109416

A1

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.

WEN YONGSEN (CN)
WANG GAN (CN)
ZHONG JIAMING (CN)
ZHENG SHAOHUA (CN)
ZHANG ZIFAN (CN)
LI ZIHAO (CN)

PCT/CN2022/132410

June 22, 2023

November 17, 2022

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GUANGZHOU CITY UNIV OF TECHNOLOGY (CN)

G01R23/02; H02J3/40

CN114236232A	2022-03-25
CN113258565A	2021-08-13
CN101123349A	2008-02-13
CN105891599A	2016-08-24
CN112330488A	2021-02-05
JP2017022800A	2017-01-26
US20110309804A1	2011-12-22
US20200287385A1	2020-09-10

GUANGZHOU HUIYUZHONGCHENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)

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