Photovoltaic Power Generation Prediction Based on AWOA-BI-LSTM
Journal Title: Journal of Shenyang Agricultural University - Year 2025, Vol 56, Issue 2
Abstract
[Objective]Accurate prediction of photovoltaic (PV) power generation is crucial for integrating renewable energy into the grid, energy markets, and building energy management systems. To improve prediction accuracy, this study proposed a hybrid model, denoted as AWOA-Bi-LSTM, which combines an improved Whale Optimization Algorithm (AWOA) with a Bidirectional Long ShortTerm Memory network (Bi-LSTM). To solve the problems of low optimization accuracy and slow convergence of the traditional Whale Optimization Algorithm (WOA), two improvement strategies, dynamic weight factors and adaptive parameter adjustment, are introduced to enhance the model’s global search capability and convergence efficiency. [Methods] Based on the real PV power generation data and measured meteorological data, comparative experiments were conducted among AWOA-Bi-LSTM, WOA-Bi-LSTM, and GRNN. [Results]The R² values of AWOA-Bi-LSTM model on the test set and training set are 0.997 01 and 0.998 43, respectively; the RMSE values are 1.585 and 0.900 63, respectively; and the RPD are 20.160 4 for the test set and 25.935 7 for the training set. [Conclusion]The results demonstrate that the AWOA-Bi-LSTM outperforms conventional methods in terms of goodness of fit, prediction accuracy, and stability. It more effectively captures complex patterns and trends in time series data, substantially enhancing prediction performance.
Authors and Affiliations
WU Shihong, ZHANG Bichen, WU Jiawen, WU Xingyu
Keywords
Related Articles
- EP ID EP766973
- DOI 10.3969/j.issn.1000-1700.2025.02.014
- Views 13
- Downloads 0
The Effect of Root Interaction Intensity on Potassium Activation and Uptake in Maize/Peanut Intercropping Systems
[Objective]To investigate the effect of root interactions on soil potassium (K) accumulation and uptake in maize / peanut intercropping, and to provide a theoretical basis for intercropping to improve soil nutrient upta...
Effect of Immersion Freezing in Regulating Ice Crystal Formation to Improve Quality of Frozen Strawberries
[Objective]Current quick-freezing remains highly energy-consume and cost，during frozen storage, temperature fluctuations could lead to repeated freezing and melting of ice crystals, resulting in the formation of larger...
The Coupling Coordination Relationship and Driving Factors of Economic Quality and Ecological Resilience in Resource-based Cities of the “Jizi bend” of the Yellow River
[Objective]Enhancing the coupling coordination relationship between economic quality and ecological resilience is crucial for achieving high-quality development in resource-based cities. Focusing on resource-based citie...
Research on Flood Storage and Scheduling of Cascade Rubber Dam Groups Based on HMOPSO Algorithm
[Objective]The flood storage and scheduling problem of a cascade rubber dam group in urban river channels has nonlinearity, multidimensionality, and high constraints. Studying on its efficient and stable solution method...
Design and Experiment of Trenching and Soil Covering Shovel for Straw Deep Returner
[Objective]In order to solve the problems of the complex structure of the trenching and soil covering parts, the inability to carry out automatic soil covering after ditching, and the high power consumption of the exist...