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相关概念视频

Load-frequency control01:28

Load-frequency control

132
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
132
Conservation of AC Power01:15

Conservation of AC Power

330
The principle of power preservation is applicable to both ac and dc circuits. This principle, when applied to AC power, asserts that the complex, real, and reactive powers produced by the source are equal to the total complex, real, and reactive powers absorbed by the loads. When two load impedances are connected in parallel to an ac source V, the complex power provided by the source can be calculated using the relation
330
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

178
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
178
Control of Power Flow01:30

Control of Power Flow

255
There are several methods to control power flow in power systems:
255
Frequency-Domain Interpretation of PD Control01:24

Frequency-Domain Interpretation of PD Control

95
Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...
95
Line Protection with Impedance Relays01:27

Line Protection with Impedance Relays

69
Coordinating time-delay overcurrent relays in complex radial systems and directional overcurrent relays in multi-source transmission loops can be challenging. Impedance relays address these issues by responding to the voltage-to-current ratio, specifically measuring the apparent impedance of a line. These relays become more sensitive during faults as current increases and voltage decreases, thereby reducing the apparent impedance.
Under normal conditions, low load currents keep the measured...
69

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相关实验视频

Updated: Jun 11, 2025

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator
06:04

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

255

维护隐私的分布式频率控制用于交流微电网,其通信受限.

Xin Cai1, Xingzhi Chen1, Bingpeng Gao1

  • 1School of Electrical Engineering, Xinjiang University, Urumqi 830017, China.

ISA transactions
|September 27, 2024
PubMed
概括

这项研究引入了一个新的保护隐私的分布式控制策略,用于岛屿交流微电网,增强安全性和减少通信负载. 该方法确保频率恢复和电力共享,即使有通信延迟.

科学领域:

  • 电气工程 电气工程
  • 控制系统 控制系统
  • 网络安全 网络安全

背景情况:

  • 分布式控制在岛屿交流微电网中普遍存在,但现有的方法往往忽视了隐私,并假定理想的通信.
  • 隐私侵犯和通信限制对交流微电网的可靠运行构成重大挑战.

研究的目的:

  • 为岛屿交流微电网开发一种新的保护隐私的分布式二次频率控制策略.
  • 通过整合隐私保护和处理受限制的通信环境来解决现有方法的局限性.

主要方法:

  • 引入了一个时间变化的功能来掩盖交互信息,防止攻击者重建频率.
  • 实施事件触发通信方案,以有效管理受限制的通信环境.
  • 开发了一个分布式事件触发控制策略,考虑到通信延迟,以确保微电网的稳定性.

主要成果:

  • 拟议的战略通过掩盖关键的操作数据,有效地保护隐私.
  • 与传统方法相比,事件触发方法显著降低了通信负载.
  • 控制策略保证在有界的通信延迟下恢复频率和主动功率共享.

结论:

  • 开发的战略提供了一个强大的解决方案,用于在岛屿交流微电网中维护隐私的分布式控制.
关键词:
交流微电网是AC的微电网.通信延迟 通信延迟分布式控制 分布式控制保护隐私 保护隐私 保护隐私第二次控制是第二次控制.

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  • 这些发现表明,在通信限制的微电网中实施安全和高效的控制是可行的.
  • 对通信延迟的分析为实际的微电网部署提供了宝贵的见解.