True Triaxial Testing System for Clay with Proportional-Integral-Differential (PID) Control

2004 ◽  
Vol 27 (2) ◽  
pp. 11756 ◽  
Author(s):  
L David Suits ◽  
TC Sheahan ◽  
D Mandeville ◽  
D Penumadu
Keyword(s):  
Pid Control ◽  
Triaxial Testing ◽  
Testing System ◽  
True Triaxial ◽  
Proportional Integral

scholarly journals Modelling and control of solar thermal power generation network in smart grid

2021 ◽  
Vol 25 (4 Part B) ◽  
pp. 2861-2870
Author(s):  
Ruilian Wang ◽  
Zichao Zhang ◽  
Xinxu Wei
Keyword(s):  
Power Generation ◽  
Dynamic Response ◽  
Pid Control ◽  
Heat Storage ◽  
Storage System ◽  
Thermal Power ◽  
Solar Thermal ◽  
Proportional Integral ◽  
Solar Thermal Power ◽  
Solar Thermal Power Generation

The thermal storage system is an essential part of the trough solar thermal power generation system. Due to the strong randomness, intermittency, and volatility of solar energy resources, to further improve the system?s overall reliability to meet the needs of variable operating conditions, the paper optimizes the control strategy of the trough solar heat storage system. Taking the molten salt heat storage medium in the oil/salt heat exchanger, the core equipment of the heat storage system, as the critical research object, the article adopts proportional, integral, and differential (PID) control theories. It builds the system in the MATLAB/Simulink simulation environment mathematical model. We use the critical proportionality method to determine many critical parameters in the control system, tune the proportional coefficient, integral time, and other physical quantities in the PID controller, and analyze the proportional control, proportional-integral control, PID controls the respective dynamic response characteristics of these three different control systems. The simulation and comparative analysis results show that: compared with the other two control methods, PID control can effectively weaken the heat storage system oscillation caused by external disturbance, its dynamic response speed is faster, the adjustment time is shorter, and it can meet the requirements of operational stability. The paper adopts PID control, which reduces the control difficulty of the trough solar heat storage system and improves the adaptability to changes in external meteorological resources. The research results have particular guiding significance at the academic and engineering levels.

Crack tensor-based evaluation of inada granite behavior due to damage under true-triaxial testing condition

2018 ◽  
Vol 106 ◽  
pp. 30-40 ◽  
Author(s):  
Kamran Panaghi ◽  
Aliakbar Golshani ◽  
Minoru Sato ◽  
Takato Takemura ◽  
Manabu Takahashi
Keyword(s):  
Triaxial Testing ◽  
True Triaxial ◽  
Testing Condition

A True Triaxial Testing Cell

2009 ◽  
pp. 819-819-15 ◽  
Author(s):  
V Silvestri ◽  
RN Yong ◽  
AMO Mohamed
Keyword(s):  
Triaxial Testing ◽  
True Triaxial

Modelling and PID Control of a Quadrotor Aerial Robot

2014 ◽  
Vol 903 ◽  
pp. 327-331 ◽  
Author(s):  
Ismail Mohd Khairuddin ◽  
Anwar P.P.A. Majeed ◽  
Ann Lim ◽  
Jessnor Arif M. Jizat ◽  
Abdul Aziz Jaafar
Keyword(s):  
Pid Control ◽  
Pitch Angle ◽  
Pid Controller ◽  
Pd Controller ◽  
Proportional Integral Derivative ◽  
Hovering Flight ◽  
Proportional Integral ◽  
Aircraft Model ◽  
Aerial Robot ◽  
Aerial Vehicle

This paper elucidates the modeling of a + quadrotor configuration aerial vehicle and the design of its attitude and altitude controllers. The aircraft model consists of four fixed pitch angle propeller, each driven by an electric DC motor. The hovering flight of the quadrotor is governed by the Newton-Euler formulation. The attitude and altitude controls of the aircraft were regulated using heuristically tuned (Proportional-Integral-Derivative) PID controller. It was numerically simulated via Simulink that a PID controller was sufficient to bring the aircraft to the required altitude whereas the attitude of the vehicle is adequately controlled by a PD controller.

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