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相关概念视频

Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

118
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...
118
Root-Locus Method01:19

Root-Locus Method

154
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
154
Feedback control systems01:26

Feedback control systems

315
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
315
Open and closed-loop control systems01:17

Open and closed-loop control systems

758
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
758
PI Controller: Design01:24

PI Controller: Design

284
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...
284
PID Controller01:19

PID Controller

119
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...
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Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
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基于SMA优化的ILC的PMSM扭矩波动抑制方法

Haoyu Li1, Yingqing Guo1, Qiang Xu1

  • 1College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.

Sensors (Basel, Switzerland)
|December 9, 2023
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种新的方法,用于减少永久磁同步电机 (PMSM) 中的扭矩波动,使用SMA优化的代学习控制 (ILC). 该方法通过优化控制参数而有效地抑制振动和噪音,而无需事先的系统知识.

关键词:
PMSMM PMSMM 是一个很好的方法.在此期间,SMA SMA SMA代学习是一种代学习.扭矩波纹抑制 扭矩波纹抑制

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科学领域:

  • 电气工程 电气工程
  • 控制系统 控制系统
  • 机器人技术 机器人技术 机器人技术

背景情况:

  • 永久磁同步电机 (PMSM) 中的周期性扭矩波由扭矩和流量波发生.
  • 这种波纹会导致速度波动,机械振动和噪声,降低矢量控制系统的性能.

研究的目的:

  • 提出和验证一种用于抑制PMSM中的扭矩波动的新方法.
  • 通过减轻扭矩波动来提高矢量控制系统的性能.
  • 为代学习控制 (ILC) 开发一种不需要先前的系统知识的参数优化技术.

主要方法:

  • 为PMSM开发了一种基于Sine-Cosine算法 (SMA) 优化的代学习控制 (ILC) 的扭矩波纹抑制方法.
  • 用SMA来确定PMSM控制系统中ILC的最佳关键参数.
  • 实时扭矩偏差通过代学习计算,并对控制电流设置点进行补偿.

主要成果:

  • 提出的方法在参数优化方面表现出高效率和精度.
  • 通过SMA优化,代学习控制 (ILC) 的表现得到了显著的改善.
  • 这种方法有效地减少了控制电流中较高波的影响,从而抑制了扭矩波纹幅度.

结论:

  • 优化SMA的ILC方法成功地抑制了PMSM中的扭矩波动.
  • 这种方法提供了一种有效的解决方案,通过减少振动和噪音来提高电机性能.
  • 该技术为PMSM控制系统中扭矩波缓解提供了强大的,无参数的方法.