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相关概念视频

Control of Power Flow01:30

Control of Power Flow

317
There are several methods to control power flow in power systems:
317
The Power Flow Problem and Solution01:26

The Power Flow Problem and Solution

348
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...
348
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

300
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:
300
Load-frequency control01:28

Load-frequency control

267
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...
267
Maximum Power Flow and Line Loadability01:23

Maximum Power Flow and Line Loadability

185
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.
185
Turbine-Governor Control01:17

Turbine-Governor Control

401
Turbine-governor control is crucial for maintaining power system stability by balancing turbine mechanical power output with electrical load demand. This mechanism ensures that generator frequency and rotor speed are within acceptable limits during load variations. Turbine-generator units store kinetic energy due to their rotating masses; this energy is released to meet the load requirement when the load increases. The electrical torque of turbines rises to meet the demand, whereas the...
401

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Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator
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一个基于参考模型的自适应控制器,用于微电网系统中的电流管理.

Kruthi Jayaram1, H A Vidya2, J Ramprabhakar2

  • 1Department of Electrical & Electronics Engineering, BNM Institute of Technology, Bangalore, 560070, India. kruthijayaram11@gmail.com.

Scientific reports
|July 2, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了DC微电网系统的高效控制器,以优化来自太阳能和风能来源的电力流. 与PI控制器相比,模型参考适应控制器显著减少了错误,确保了可靠的能源供应.

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科学领域:

  • 电气工程 电气工程
  • 可再生能源系统可再生能源系统
  • 控制系统 控制系统

背景情况:

  • 电流微电网对于整合分布式能源资源 (DER) 是至关重要的.
  • 有效的电力流量管理对于稳定性和最佳的能量收集至关重要.
  • 现有控制器在管理混合可再生能源系统方面可能存在局限性.

研究的目的:

  • 开发和分析DC微电网系统的高效控制器.
  • 为了增强DER之间的最佳功率流管理.
  • 使用太阳能,风能和电池存储来调节恒定的直流总线电压.

主要方法:

  • 实现一个带实时实验室数据的比例整合 (PI) 控制器.
  • 使用混合可再生能源系统分析需求和供应条件.
  • 模型参考适应控制器 (MRAC) 的应用和评估.

主要成果:

  • 调查人员控制器的错误指数约为30%.
  • 在MRAC中,错误指数显著降低.
  • MRAC加强了对电网的控制,有效地满足了客户的需求.

结论:

  • 在DC微电网的PI控制器上,MRAC提供了优越的性能.
  • 有效的控制策略对于最大限度地利用可再生能源获取能源至关重要.
  • 开发的控制器确保了DC微电网中稳定的电压和可靠的电源供应.