Output Power Prediction of Wave Energy Generation System Based on Modified Ensemble Empirical Mode Decomposition-Autoregressive Integrated Moving Average Model
Special Topic on Forecasting Technology and Its Application in Power Systems with Renewable Energy Sources|更新时间:2025-06-16
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Output Power Prediction of Wave Energy Generation System Based on Modified Ensemble Empirical Mode Decomposition-Autoregressive Integrated Moving Average Model
Automation of Electric Power SystemsVol. 45, Issue 1, Pages: 65-70(2021)
作者机构:
1.河海大学能源与电气学院,江苏省南京市 211100
2.国网江苏省电力有限公司南京供电分公司,江苏省南京市 210019
作者简介:
基金信息:
State Key Program of National Natural Science Foundation of China
WU Feng,WANG Fei,GU Kanghui,et al.Output Power Prediction of Wave Energy Generation System Based on Modified Ensemble Empirical Mode Decomposition-Autoregressive Integrated Moving Average Model[J].Automation of Electric Power Systems,2021,45(1):65-70.
WU Feng,WANG Fei,GU Kanghui,et al.Output Power Prediction of Wave Energy Generation System Based on Modified Ensemble Empirical Mode Decomposition-Autoregressive Integrated Moving Average Model[J].Automation of Electric Power Systems,2021,45(1):65-70. DOI: 10.7500/AEPS20191124004.
Output Power Prediction of Wave Energy Generation System Based on Modified Ensemble Empirical Mode Decomposition-Autoregressive Integrated Moving Average Model
wave energy is one of the ideal energy in the future
but it has strong stochastic fluctuation characteristics. Reliable prediction of output power for wave energy generation systems will bring great convenience to the scheduling of complex power grids. A combination prediction model of wave energy based on modified ensemble empirical mode decomposition (MEEMD)-autoregressive integrated moving average (ARIMA) model is proposed. Firstly
based on the wave calculation principle
the hourly average height and period of the mixed wave are calculated. Secondly
the MEEMD is used to decompose the hourly average wave height and period to obtain a series of intrinsic mode functions (IMFs) with different characteristics and margins. The results of the average wave height decompositions are compared with the decomposition results of discrete wavelet transformation. Then
the obtained components are used to establish ARIMA prediction models
and the predicted values of the hourly average wave height and period are obtained by superposition. Finally
the conversion model between wave height and power of direct-drive wave energy generation system is established
and the test results show the effectiveness of the combined model prediction.
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