一小时前的光伏电力预测结合了BiLSTM和贝叶斯优化算法,并进行了间隔预测的引导重新抽样
Reinier Herrera-Casanova1, Arturo Conde1, Carlos Santos-Pérez2
1Faculty of Mechanical and Electrical Engineering, Autonomous University of Nuevo León, San Nicolás de los Garza 66455, Mexico.
Sensors (Basel, Switzerland)
|February 10, 2024
概括
这项研究介绍了一种双向长期短期记忆 (BiLSTM) 深度学习模型,用于提前一小时的光伏电力预测. 与传统方法相比,BiLSTM模型显著提高了预测准确度.
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
- 对于电网的机器学习
背景情况:
- 准确的光伏 (PV) 功率预测对于将可再生能源整合到电网中至关重要.
- 现有的预测模型在不同的条件下面临着准确性和稳定性的挑战.
- 深度学习为增强光伏功率预测提供了潜力.
研究的目的:
- 开发和评估一种新的深度学习模型,以准确预测一小时前的光伏电力.
- 通过超参数调整和强大的数据预处理来优化模型的性能.
- 将拟议模型的有效性与既有预测技术进行比较.
主要方法:
- 实施双向长期短期记忆 (BiLSTM) 深度学习模型.
- 应用一个强大的数据预处理算法用于历史的光伏数据.
- 协同组合BiLSTM与贝叶斯优化算法 (BOA) 进行超参数调整.
- 使用引导重新抽样来进行间隔预测.
主要成果:
- 拟议的BiLSTM-BOA模型显示出卓越的决定性预测性能.
- 实现了正常化平均绝对误差 (nMAE) 的显著降低:75.03%与MLP相比,77.01%与RF相比.
- 间隔预测提供了可靠和灵活的预测,根据所需的信心水平进行调整.
结论:
- BiLSTM-BOA模型为短期光伏电力预测提供了一个非常有效的解决方案.
- 该模型的性能在各种气象和季节条件下得到验证.
- 这种方法提高了光伏电力集成到能源网的可靠性.
相关概念视频
Maxwell-Boltzmann Distribution: Problem Solving
1.5K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
1.5K
Bootstrapping
606
The term "bootstrap" originated in the 19th century as a metaphor for self-improvement or achieving something independently, without external assistance. This concept extends to statistical bootstrapping, a self-contained method for estimating population parameters through resampling, even though it can be computationally intensive. Developed by the American statistician Dr. Bradley Efron in 1979, bootstrapping provides a robust way to perform inference when the original sample size is...
606
Maximum Power Flow and Line Loadability
116
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
116
Prediction Intervals
2.3K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
2.3K
Cluster Sampling Method
11.9K
Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
11.9K
Parametric Survival Analysis: Weibull and Exponential Methods
433
Parametric survival analysis models survival data by assuming a specific probability distribution for the time until an event occurs. The Weibull and exponential distributions are two of the most commonly used methods in this context, due to their versatility and relatively straightforward application.
Weibull Distribution
The Weibull distribution is a flexible model used in parametric survival analysis. It can handle both increasing and decreasing hazard rates, depending on its shape parameter...
Weibull Distribution
The Weibull distribution is a flexible model used in parametric survival analysis. It can handle both increasing and decreasing hazard rates, depending on its shape parameter...
433


