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相关概念视频

PID Controller01:19

PID Controller

234
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...
234
PI Controller: Design01:24

PI Controller: Design

496
Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
496
Generator Voltage Control01:21

Generator Voltage Control

243
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,...
243
PD Controller: Design01:26

PD Controller: Design

352
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
352
Frequency-Domain Interpretation of PD Control01:24

Frequency-Domain Interpretation of PD Control

177
Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...
177
Time and frequency -Domain Interpretation of PI Control01:27

Time and frequency -Domain Interpretation of PI Control

206
Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
Acting as a low-pass filter, the PI controller slows the system's response and extends settling times. This requires...
206

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使用灰狼优化的PID控制器优化与电网连接的光伏逆变器系统控制.

Monika Gupta1, P M Tiwari1, R K Viral1

  • 1Department of Electrical and Electronics Engineering, Amity University, Noida, India.

Scientific reports
|August 7, 2025
PubMed
概括

本研究介绍了光伏逆变器的适应性灰狼优化-比例-整合-导数 (GWO-PID) 控制器. 通过实时优化参数,GWO-PID控制器提高了电网稳定性和电力质量.

关键词:
连接直流电路的电压.灰狼优化优化 灰狼优化连接到电网的光伏系统逆变器控制器的控制器是什么最大的功率点跟踪跟踪.在PID控制器控制器中,PID控制器控制器电力质量 电力质量 电力质量总的波扭曲 总的波扭曲

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科学领域:

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

背景情况:

  • 光伏 (PV) 逆变器中的传统比例 (P) 和比例整合 (PI) 控制器与动态环境作斗争,导致波扭曲和电压调节不良.
  • 可变的辐射条件显著影响光伏逆变器的性能,需要适应性控制策略.

研究的目的:

  • 开发和评估用于联网光伏逆变器系统的强大和适应性控制框架.
  • 为了提高光伏逆变器在不同环境条件下的动态性能,功率质量和稳定性.

主要方法:

  • 整合一个比例整合导数 (PID) 控制器与灰狼优化 (GWO) 算法进行实时参数调整.
  • 在MATLAB/Simulink中模拟一个50千瓦的光伏系统,包括一个带有增量导电 (INC) MPPT的增压转换器,一个电压源逆变器,以及用于电网同步的相锁循环 (PLL).
  • 优化PID增益 (Kp,Ki,Kd) 使用GWO,基于最小化平均平方误差 (MSE) 和总波扭曲 (THD) 的健身函数.

主要成果:

  • 在标准照射条件下,GWO-PID控制器实现了0.025秒的上升时间,0.035秒的沉降时间,3.7%的THD和0.25 kW2的MSE.
  • 证明了一致的直流连接电压稳定性,并将400 W/m2至1000 W/m2的辐射水平的振荡最小化.
  • 与传统PI和P控制器相比,结算时间缩短了45%以上,功率跟踪得到了改进,和曲率降低,确保符合IEEE 519-2014标准.

结论:

  • 拟议的GWO-PID控制技术提供了一个可扩展,高效和实时的解决方案,用于提高光伏应用中的电网合规性,能源质量和系统稳定性.
  • 这种适应性控制框架代表了智能电网和可再生能源微电网集成的重大进步.
  • GWO-PID控制器有效地管理主动和反应功率,最大限度地减少超速,并在快速环境变化期间保持电网同步.