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相关概念视频

Control of Power Flow01:30

Control of Power Flow

263
There are several methods to control power flow in power systems:
263
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
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
Controller Configurations01:22

Controller Configurations

93
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
93
Source Transformation for AC Circuits01:11

Source Transformation for AC Circuits

569
The process of source transformation in the frequency domain entails the conversion of a voltage source, positioned in series with an impedance, into a current source that is parallel to an impedance, or the other way around. It is essential to maintain the following relationships while transitioning from one source type to another.
569
Generator Voltage Control01:21

Generator Voltage Control

139
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,...
139

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通过有限的控制集模型预测控制来进行分割源逆变器的先进控制,以提高系统性能.

Ahmed Abdelaleem1, Mohamed A Ismeil2, M Nasrallah1

  • 1Faculty of Engineering, Electrical Engineering Department, South Valley University, Qena, Egypt.

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本研究介绍了远程电力系统中分割源逆变器 (SSI) 的有限控制集模型预测控制 (MPC). 拟议的MPC确保了准确的负载电流跟踪,响应快速,超标最小,提高系统性能.

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科学领域:

  • 电气工程 电气工程
  • 电力电子 电力电子 电力电子
  • 控制系统 控制系统

背景情况:

  • 分布式发电系统需要多功能转换器拓.
  • 阻抗源转换器,包括新型分割源逆变器 (SSI),提供单阶段的buck-boost功能.
  • 模型预测控制 (MPC) 策略正在成为电力系统的有效控制技术.

研究的目的:

  • 为三相单阶段SSI提出一个有限控制集MPC (FCS-MPC).
  • 在偏远地区的应用中支持独立负载.
  • 提高SSI系统在电流跟踪和短暂响应方面的性能.

主要方法:

  • 实施有限控制集模型预测控制 (FCS-MPC) 策略.
  • 应用于三相单阶段分割源逆变器 (SSI) 系统.
  • 使用Opal-RT OP-4510硬件进行验证,并解释功耗损失模型.

主要成果:

  • 拟议的FCS-MPC实现了输出负载电流参考大小的精确跟踪,以最小化误差.
  • 该系统显示了10微秒的快速沉降时间.
  • 输出电流表现出最小的超标,表明系统稳定性和性能得到了增强.

结论:

  • 开发的FCS-MPC是独立应用中的三相单阶段SSI的合适控制技术.
  • 拟议的控制策略显著提高SSI系统性能,提供快速响应和高精度.
  • 该研究验证了FCS-MPC在远程发电应用中的有效性.