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相关概念视频

Load-frequency control01:28

Load-frequency control

98
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...
98
Turbine-Governor Control01:17

Turbine-Governor Control

125
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...
125
Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

141
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:
141
Generator Voltage Control01:21

Generator Voltage Control

95
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
95
Control of Power Flow01:30

Control of Power Flow

246
There are several methods to control power flow in power systems:
246
Control Systems01:10

Control Systems

967
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.
At the heart...
967

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适应式协调控制解决方案,以提高混合分布式发电系统的频率稳定性.

Hossam S Salama1, Gaber Magdy2, Abualkasim Bakeer1

  • 1Electrical Engineering Department, Faculty of Engineering, Aswan University, Aswan, Egypt.

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概括

本研究介绍了混合系统的自适应控制策略,以提高频率稳定性. 它优化了用于气生产的可再生能源的使用,提高了电网可靠性.

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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:

  • 在混合分布式发电系统 (HDGS) 中,对可再生能源 (RES) 的依赖日益增长,挑战了电网频率稳定性 (FS).
  • 有效协调可再生能源对于保持可靠的电力供应和电网完整性至关重要.
  • 不能预测的可再生能源发电需要先进的控制策略来管理波动.

研究的目的:

  • 提出一种自适应协调控制 (ACC) 战略,以提高高频系统的频率稳定性.
  • 整合可再生能源,燃料电池 (FC) 和水电解剂 (AE) 用于生产和储能.
  • 根据实时频率偏差,动态管理从RES到AE的能量流.

主要方法:

  • 开发一种ACC解决方案,利用模糊控制来调整分配给AE的能量比率 (Kn).
  • 一个包括光伏 (PV) 电厂,风力轮机 (WT),AE-FC系统,能源储能系统 (ESS) 和柴油发电机 (DG) 的高质量储能系统 (HDGS) 的建模.
  • 在各种负载条件下对拟议的ACC进行模拟和分析,并将其性能与固定Kn策略进行比较.

主要成果:

  • 通过动态调整能源分配,ACC战略有效地提高了HDGS的频率稳定性.
  • 优化利用剩余的可再生能源能源通过AE生产气和储存在FCs.
  • 在减噪频率变化中,自适应方法在固定比率方法上表现出优异的性能.

结论:

  • 拟议的ACC解决方案提供了一种可靠的方法,用于提高RES集成高频系统的频率稳定性.
  • 动态能源管理是最大限度地利用可再生能源的关键,同时确保电网可靠性.
  • 这种方法为整合间歇性可再生能源和改善储能能力提供了可行的战略.