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Multimachine Stability01:25

Multimachine Stability

545
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
545
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

375
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
375

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相关实验视频

Updated: Jan 17, 2026

Structure-Based Simulation and Sampling of Transcription Factor Protein Movements along DNA from Atomic-Scale Stepping to Coarse-Grained Diffusion
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Structure-Based Simulation and Sampling of Transcription Factor Protein Movements along DNA from Atomic-Scale Stepping to Coarse-Grained Diffusion

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基于多代理系统共识的多个PMSM的固定时间领先跟随速度共识控制.

Bin Li1, Hongxu Chai2, Limin Hou1

  • 1Liaoning Technical University, Huludao, China.

Scientific reports
|September 24, 2025
PubMed
概括

本研究引入了对多个永磁同步电机 (多个PMSM) 的固定时间共识控制,以提高速度协调. 这种新的方法可以确保系统的性能更快,更可靠,而不依赖于起始条件.

科学领域:

  • 控制系统工程 控制系统工程
  • 机器人和自动化 机器人和自动化
  • 电气工程 电气工程

背景情况:

  • 多代理系统 (MAS) 能够为协调任务提供可扩展和可靠的控制.
  • 协调多个永磁同步电机 (多个PMSM) 在速度同步和干扰排斥方面提出了挑战.
  • 现有的控制方案可能缺乏保证的结算时间或对系统不确定性的稳定性.

研究的目的:

  • 为多个PMSM开发一个固定时间领先的速度共识控制策略,遵循多个PMSM的速度共识.
  • 提高多PMSM系统的速度协调性能和稳定性.
  • 确保共识控制具有独立于初始状态的结算时间.

主要方法:

  • 模拟多PMSM速度控制系统作为一个第一阶段的MAS在干扰下.
  • 设计一个使用非定向图的固定时间共识协议.
  • 开发一个固定时间延长状态观察员 (ESO) 实时扰动估计和前补偿.
  • 实现协议以产生所需的q轴电流以控制速度.

主要成果:

  • 拟议的固定时间共识协议实现了多个PMSM的速度同步.
  • 达成共识的解决时间是有限的,并且独立于初始条件.
关键词:
固定时间ESO.固定时间共识协议协议.多个PMSM的速度控制系统.多代理系统是多代理系统.

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  • 固定时间延长状态观察者有效地估计和补偿系统扰动.
  • 实验验证表明与相对合控制相比,性能优越.

    • 结论:

    • 固定时间领导者遵循的共识控制方案有效地提高了多个PMSM的速度协调.
    • 该方法通过固定时间的趋同提供了更好的稳定性和可预测的性能.
    • 这种方法为复杂的多发动机系统提供了可扩展和可靠的解决方案.