Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Types of Damping01:20

Types of Damping

7.4K
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
7.4K
Damped Oscillations01:07

Damped Oscillations

6.7K
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...
6.7K
Second Order systems II01:18

Second Order systems II

346
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
346
Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

326
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...
326
PD Controller: Design01:26

PD Controller: Design

558
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,...
558
Relation between Mathematical Equations and Block Diagrams01:20

Relation between Mathematical Equations and Block Diagrams

2.8K
In a spring-mass-damper system, the second-order differential equation describes the dynamic behavior of the system. When transformed into the Laplace domain under zero initial conditions, this equation can be effectively analyzed and manipulated. The transformation into the Laplace domain converts differential equations into algebraic equations, simplifying the process of isolating the output.
2.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Power management enhancement and smoothing DC voltage using integrated BESS and SMES in Off-grid hybrid AC/DC microgrid based on ILCs.

Scientific reports·2025
Same author

Adaptive digital twin integration with multilevel inverter control for energy efficient smart rehabilitation systems.

Scientific reports·2025
Same author

Simultaneous Estimation of Digit Tip Forces and Hand Postures in a Simulated Real-Life Condition With High-Density Electromyography and Deep Learning.

IEEE journal of biomedical and health informatics·2024
Same author

Reduced order state estimation for a class of impulsive switched systems with unknown inputs.

ISA transactions·2024
Same author

A new integrated fault detection and control scheme of islanded DC microgrids: A resilient approach.

ISA transactions·2024
Same author

Current sharing and voltage regulation of parallel DC-DC buck converters: Switching control approach.

ISA transactions·2023

Related Experiment Video

Updated: Dec 30, 2025

WheelCon: A Wheel Control-Based Gaming Platform for Studying Human Sensorimotor Control
08:18

WheelCon: A Wheel Control-Based Gaming Platform for Studying Human Sensorimotor Control

Published on: August 15, 2020

5.4K

Interconnection and damping assignment control based on modified actor-critic algorithm with wavelet function

Amir Gheibi1, Amir Rikhtehgar Ghiasi1, Sehraneh Ghaemi1

  • 1Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran.

ISA Transactions
|January 21, 2020
PubMed
Summary
This summary is machine-generated.

This study enhances passivity-based control (PBC) by modifying the actor-critic (AC) algorithm with wavelet approximation. The improved method effectively handles uncertainties and disturbances in nonlinear systems.

Keywords:
Actor–criticBoost converterObserverPassivity-based control (PBC)Wavelet approximator

More Related Videos

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

5.0K
Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

2.1K

Related Experiment Videos

Last Updated: Dec 30, 2025

WheelCon: A Wheel Control-Based Gaming Platform for Studying Human Sensorimotor Control
08:18

WheelCon: A Wheel Control-Based Gaming Platform for Studying Human Sensorimotor Control

Published on: August 15, 2020

5.4K
Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
11:54

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface

Published on: May 8, 2021

5.0K
Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

2.1K

Area of Science:

  • Robotics and Control Systems
  • Applied Mathematics
  • Machine Learning

Background:

  • Passivity-based control (PBC) is a model-based control strategy susceptible to system uncertainties.
  • Traditional PBC design may require solving complex partial differential equations (PDEs) for controller parameterization.
  • The actor-critic (AC) algorithm has been utilized for online regulation of PBC parameters but struggles with disturbance rejection.

Purpose of the Study:

  • To enhance the performance of PBC by addressing its limitations in handling uncertainties and disturbances.
  • To modify the actor-critic (AC) algorithm for improved robustness and disturbance rejection capabilities.
  • To investigate the stability of the proposed control strategy for nonlinear systems.

Main Methods:

  • Implementation of passivity-based control (PBC) integrated with a modified actor-critic (AC) algorithm.
  • Incorporation of an online wavelet function approximation into the AC algorithm to enhance its learning and adaptation capabilities.
  • Conducting stability analysis for a nonlinear system under the proposed control framework.

Main Results:

  • The modified AC algorithm, augmented with wavelet approximation, demonstrates improved performance in attenuating the effects of uncertainties.
  • The proposed control strategy effectively handles external disturbances, a limitation of the standard AC algorithm.
  • Stability analysis confirms the robustness and reliability of the new method for nonlinear systems.

Conclusions:

  • The integration of PBC with the modified AC algorithm using wavelet approximation offers a superior approach to managing uncertainties and disturbances.
  • This novel method provides enhanced control performance for nonlinear systems compared to existing techniques.
  • The study validates the effectiveness of the proposed approach in practical control applications.