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相关概念视频

Open and closed-loop control systems01:17

Open and closed-loop control systems

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Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
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Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
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Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
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In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
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Energy Line and Hydraulic Gradient Line01:27

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Based on Bernoulli's equation, the energy line (EL) and hydraulic grade line (HGL) provide graphical representations of energy distribution in a fluid flow system. For steady, incompressible, inviscid flows, Bernoulli's equation is expressed as:
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Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
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连接开放水域系统的经济区数据支持的预测控制.

Xiaoqiao Chen1, Xuewen Zhang2, Minghao Han3

  • 1Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 CleanTech Loop, 637141, Singapore; Interdisciplinary Graduate Programme, Nanyang Technological University, 61 Nanyang Drive, 637460, Singapore; School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore.

Water research
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PubMed
概括
此摘要是机器生成的。

本研究介绍了安全和节能开放水系统的数据驱动控制框架. 与现有策略相比,新方法显著减少了区域违规和能源使用.

关键词:
连接开放水系统的开放水系统.基于数据的预测控制.尽量减少能源消耗 尽量减少能源消耗模型预测控制模型预测控制水平调节 水平调节区域跟踪 区域跟踪 区域跟踪

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科学领域:

  • 水资源管理 水资源管理
  • 控制工程 控制工程 控制工程
  • 人工智能的人工智能

背景情况:

  • 开放水系统的实时运行对于安全,效率和能源优化至关重要.
  • 现有的控制方法 (基于规则,基于模型) 在复杂,动态和不确定的环境中存在局限性.
  • 需要采用数据驱动的方法来克服传统控制策略的挑战.

研究的目的:

  • 为连接的开放水系统开发一个完全数据驱动的,基于区域的控制框架.
  • 通过适应性控制目标区域选择,实现安全和节能运行.
  • 为了最大限度地降低运营能耗,同时保持所需的水位.

主要方法:

  • 提出了一种混合整数经济区数据支持预测控制 (DeePC) 方法.
  • 利用词汇优化来处理多个控制目标 (区域跟踪,能源最小化).
  • 采用贝叶斯优化来适应性控制目标区域选择,以平衡竞争目标.

主要成果:

  • 拟议的方法在97.04%的运行时间内保持了所需区域内的水位.
  • 平均每0.5小时能耗达到33.5千瓦时.
  • 与基线和基于规则的方法相比,明显减少了区域违规和能源消耗 (例如,违规和基于规则的控制相比违规减少了74.96%).

结论:

  • 数据驱动的DeePC框架与适应性区域选择有效地管理开放水系统.
  • 该方法为安全,节能运行提供了强大的解决方案,优于传统方法.
  • 这种方法消除了对显式动态建模的需求,简化了复杂水系统的实施.