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相关概念视频

Load-frequency control01:28

Load-frequency control

614
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...
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PID Controller01:19

PID Controller

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Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
644
Maximum Power Flow and Line Loadability01:23

Maximum Power Flow and Line Loadability

584
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.
584
Generator Voltage Control01:21

Generator Voltage Control

623
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, use...
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Control of Power Flow01:30

Control of Power Flow

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There are several methods to control power flow in power systems:
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Turbine-Governor Control01:17

Turbine-Governor Control

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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...
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在可再生能源集成多区域电网中使用混合SA和QIO调的PIDF控制器进行强大的负载频率控制.

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一个新的混合控制器提高了可再生能源电网的频率稳定性. 与现有方法相比,这种先进的系统可以显著减少错误并提高响应时间.

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尽量减少 ITAE 的使用.负载频率控制 控制 控制多区域电网稳定性的多区域电网稳定性在 PIDF 控制器调时,控制器调.四位数插值优化器二次插值优化器可再生能源综合电力系统模拟的回火算法模拟回火算法智能电网频率调节的规则

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科学领域:

  • 电气工程 电气工程
  • 控制系统 控制系统
  • 整合可再生能源的整合

背景情况:

  • 可再生能源给电网带来不稳定的挑战.
  • 传统控制器与间歇生成和负载变化作斗争.
  • 现有的优化算法存在诸如过早的融合或低效率等局限性.

研究的目的:

  • 为高可再生能源透率的电力系统制定强大的负载频率控制策略.
  • 在动态干扰下提高频率稳定性,如太阳辐射波动和负载变化.
  • 克服传统PID和其他先进控制器的局限性.

主要方法:

  • 提出了一种混合模拟化-二次插曲优化器 (hsa-QIO) 调整过的PID (PID-F) 控制器.
  • 使用MATLAB/Simulink进行动态太阳辐射和随机负载扰动下的模拟.
  • 评估控制器性能与现有方法 (如ANN-PID,GA-PID和SVM-PID) 相比.

主要成果:

  • 与QIO相比,实现了整体时间加权绝对误差 (ITAE) 的55.7%降低.
  • 在第1区,表现出25%更低的超额投资和50%更快的结算时间.
  • 展示了优越的结线调节和统计稳定性,ITAE偏差明显较低.

结论:

  • 调整为hsa-QIO的PID-F控制器为负载频率控制提供了一个计算效率高且强大的解决方案.
  • 拟议的方法确保了在高可再生能源集成的电网中严格的频率稳定性.
  • 这种方法有效地解决了间歇性和非线性动态所带来的挑战.