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相关概念视频

Maximum Power Flow and Line Loadability01:23

Maximum Power Flow and Line Loadability

107
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.
107
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

182
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:
182
Load-frequency control01:28

Load-frequency control

150
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...
150
Multimachine Stability01:25

Multimachine Stability

150
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
150
The Power Flow Problem and Solution01:26

The Power Flow Problem and Solution

192
Power flow problem analysis is fundamental for determining real and reactive power flows in network components, such as transmission lines, transformers, and loads. The power system's single-line diagram provides data on the bus, transmission line, and transformer. Each bus k in the system is characterized by four key variables: voltage magnitude Vk​, phase angle δk​, real power Pk​, and reactive power Qk​. Two of these four variables are inputs, while the...
192
Control of Power Flow01:30

Control of Power Flow

263
There are several methods to control power flow in power systems:
263

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相关实验视频

Updated: Jun 21, 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

287

微电网综合需求响应负载的优化调度,考虑到用户满意度.

Chaoliang Wang1, Xiong Li2

  • 1State Grid Zhejiang Marketing Service Centre, Hangzhou, Zhejiang, China. 15575525348@163.com.

Scientific reports
|July 11, 2024
PubMed
概括

本研究介绍了一种优化的微电网负载控制策略,包括激励需求响应. 新型号提高了用户满意度,降低了成本,并改善了能量负载平衡.

科学领域:

  • 电气工程 电气工程
  • 能源系统 能源系统
  • 优化理论 优化理论

背景情况:

  • 目前的微型电网需求响应模式缺乏激励因素,导致用户满意度低,峰谷负载填充不足.
  • 现有的模型在有限的需求响应参与和负载曲线高峰-低谷差异显著的情况下扎.

研究的目的:

  • 通过解决现有需求响应模型的局限性来优化微电网的灵活负载控制策略.
  • 提出一种新的双目标优化模型,将价格和激励机制整合起来,以加强微电网管理.

主要方法:

  • 开发了微电网负载控制的双目标优化模型.
  • 采用了改进的混乱粒子群算法来解决优化模型.
  • 使用微电网负载数据进行模拟分析.

主要成果:

  • 在整体用户满意度上实现了9.51%的增长.
  • 降低了微电网供应商的运营成本12.975 / 一万元.
  • 降低了4.61%的峰值-山谷负载差异,并增加了27.24%的用户需求响应.

结论:

  • 拟议的灵活控制模型有效地提高了微电网供应侧利和用户满意度.
关键词:
需求响应是对需求的反应.灵活的负载控制控制器微电网是微型电网的组成部分.用户满意度 用户满意度

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  • 该模型最大限度地提高了微电网供需之间的协同效益.
  • 成功地减少了分布式电源问题,并在微电网内实现了总体负载需求匹配.