模式分解和封闭的循环单位的混合模型,用于短期负载预测
1School of Electronic Engineering, Xi'an Aeronautical Institute, Xi'an, Shaanxi, China.
PeerJ. Computer science
|September 14, 2023
概括
本研究引入了一个适应式混合模型用于电荷预测,减少频率别名和随机性. 这种新的方法提高了电力系统的预测准确性和可靠性.
科学领域:
- 电气工程 电气工程
- 数据科学数据科学数据科学
- 人工智能的人工智能
背景情况:
- 准确的电荷预测对于经济和安全的电力系统运行至关重要.
- 可变性和频率替代对传统负载预测方法构成重大挑战.
- 现有方法中的基于经验的参数设置可能会限制准确性.
研究的目的:
- 提出适应式混合模型用于电荷预测.
- 为了减少负载数据中的频率别名和序列随机性.
- 提高电荷预测的准确性和可靠性.
主要方法:
- 一种结合模态分解和封闭循环单位 (GRU) 的自适应混合模型.
- 使用平均样本和相互相关性来确定模态数.
- 将随机调整参数纳入Adam算法以进行更快的训练.
主要成果:
- 拟议的混合模型在负载预测方面表现出卓越的准确性和可靠性.
- 使用来自中国西省实际数据集的验证证实了该模型的有效性.
- 该模型的性能超过了一些最先进的预测方法.
结论:
- 适应式混合模型有效地解决了电荷预测中的频率别名和序列随机性问题.
- 这种方法为电力系统负载预测提供了更准确,更可靠的解决方案.
- 该方法显示了在能源领域实际应用的巨大潜力.
相关概念视频
Transient and Steady-state Response
205
In control systems, test signals are essential for evaluating performance under various conditions. The ramp function is effective for systems undergoing gradual changes, while the step function is suitable for assessing systems facing sudden disturbances. For systems subjected to shock inputs, the impulse function is the most appropriate test signal.
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
205
Simplified Synchronous Machine Model
266
The Synchronous Machine Model is a fundamental tool in analyzing and ensuring the transient stability of power systems. This model simplifies the representation of a synchronous machine under balanced three-phase positive-sequence conditions, assuming constant excitation and ignoring losses and saturation. The model is pivotal for understanding the behavior of synchronous generators connected to a power grid, particularly during transient events.
In this model, each generator is connected to a...
In this model, each generator is connected to a...
266
Current Growth And Decay In RL Circuits
3.9K
The current growth and decay in RL circuits can be understood by considering a series RL circuit consisting of a resistor, an inductor, a constant source of emf, and two switches. When the first switch is closed, the circuit is equivalent to a single-loop circuit consisting of a resistor and an inductor connected to a source of emf. In this case, the source of emf produces a current in the circuit. If there were no self-inductance in the circuit, the current would rise immediately to a steady...
3.9K
Distributed Loads: Problem Solving
668
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
668
Multicompartment Models: Overview
178
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
178
Distributed Loads
555
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
555


