基于状态空间建模和BiTCNN的光伏发电预测的高效方法
Guowei Dai1,2, Shuai Luo1,2, Hu Chen1,2
1College of Computer Science, Sichuan University, Chengdu 610065, China.
Sensors (Basel, Switzerland)
|October 26, 2024
概括
准确的光伏电力预测对于可再生能源管理至关重要. 本研究介绍了一个最佳的混合模型,结合BiTCN,DC,BiLSTM和一种新的混合SSM,实现高预测准确性并支持电网稳定性.
科学领域:
- 可再生能源系统可再生能源系统
- 人工智能在能源中的作用
- 气象预报 气象预报
背景情况:
- 光伏发电对于全球碳减排和新能源行业至关重要.
- 由于气象影响,精确的光伏输出预测对于高效的能源管理至关重要.
研究的目的:
- 为光伏发电开发一个最佳的混合预测策略.
- 通过集成先进的深度学习和统计模型来提高预测准确性.
- 提高相关系数 (R2) 并减少预测错误.
主要方法:
- 双向时间卷积网络 (BiTCN),动态卷积 (DC) 和双向长短期记忆网络 (BiLSTM) 的集成.
- 开发一种新的混合状态空间模型 (Mixed-SSM),结合SSM,MLP和MHSA进行时间,非线性和长期特征捕获.
- 应用皮尔森和斯皮尔曼相关性分析来选择特征,K-Means++用于数据增强.
主要成果:
- 特征选择至少提高了0.87%的预测相关系数 (R2).
- K-Means++增强了输入数据功能,实现了最大的R2为86.9%和6.62%的R2增益.
- 拟议的混合模型实现了平均绝对误差 (MAE) 的1.1%,根平均平方误差 (RMSE) 的1.2%,和R2的89.1%.
结论:
- 拟议的混合预测策略与现有的BiTCN变体相比,表现优越.
- 该模型有效预测光伏发电量,有助于高效的能源管理.
- 这种方法通过准确的可再生能源预测,支持低碳,安全的电网运行.
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