Use the Differential Filters in the Control System of Pneumatic Muscle

2015 ◽  
Vol 816 ◽  
pp. 224-233
Author(s):  
Leszek Cedro
Keyword(s):  
Control Process ◽  
Quantization Noise ◽  
State Variables ◽  
Real Time Control ◽  
Pneumatic Muscle ◽  
Linear Dynamic Systems ◽  
Quality Of Control ◽  
Time Control ◽  
Derivatives Of

The paper discusses the use of differential filters in control algorithms. The filters are designed to determine the derivatives of the input signal and eliminate measuring and quantization noise. The differential filters improved the quality of control, with the results being better than those obtained with the classic Finite Difference Method (FDM). The primary purpose of the study was to employ the differential filters in a real-time control algorithm, which requires appropriate derivatives. The control process involved applying a method of aggregation of state variables, based on signal derivatives, which can be used for non-linear dynamic systems. The experiments were conducted on a test stand with a pneumatic muscle acting as the plant to be controlled.

Experimental studies of the operation dynamics of the motion neuro regulator of a nonlinear dynamic system

2021 ◽  
pp. 26-41
Author(s):  
Yu. Romasevych ◽  
◽  
V. Loveikin ◽  
A. Shevchuk ◽  
I. Bolbot ◽  
...  
Keyword(s):  
Angular Velocity ◽  
Dynamic System ◽  
Nonlinear Dynamic ◽  
Supply Voltage ◽  
Experimental Studies ◽  
Control Process ◽  
Nonlinear Dynamic System ◽  
Quality Of Control ◽  
Control Stability

In the article, experimental studies of the neurocontroller of a laboratory installation of a quadrocopter link are presented. The latter is a nonlinear dynamic system. The input vector of the neurocontroller included the angle of inclination of the rod (a beam of the quadcopter) relative to the horizon, its angular velocity, and the angular velocity of the propeller. The output signal of the neurocontroller is proportional to the supply voltage of the propeller drive. In the article, the planning of experimental studies was carried out and eight indicators were selected, according to which the quality of the control process was evaluated. In addition, a qualitative analysis of the control process of the dynamic system motion was carried out with the corresponding graphical dependencies. The data obtained showed a good quality of control at a zero setpoint angle. For other values of the setpoint (-0.52 and -1.05 rad), the neurocontroller provides the rod aboutness to the setpoint angle and the control stability. However, the quality of control is not high. The reason for this effect has been established in the work. In order to improve the quality of control, the neurocontroller was modified by including an integral component in its structure. At the same time, the steady-state control error has significantly decreased with minor changes in other estimated indicators.

Comprehensive Evaluation of the Coupling Construction Progress and Quality of High Core Rockfill Dam

2012 ◽  
Vol 256-259 ◽  
pp. 2439-2443
Author(s):  
Bo Cui ◽  
Ning Liu ◽  
Chen Sheng Zhao
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Index ◽  
Dam Construction ◽  
Real Time Control ◽  
Comprehensive Evaluation Method ◽  
Time Control ◽  
Rockfill Dam ◽  
Core Rockfill Dam

Construction progress and quality are two important objectives in the construction of high core rockfill dam. It is of great significance to evaluate their control effect comprehensively. In this paper, the progress and quality of high core rockfill dam construction management are the study objectives. in order to achieve the real-time control of coupling them, the comprehensive evaluation method for the quantitative analysis of their complex relationship is proposed. Based on the comprehensive analysis of the mechanisms of the influence related factors in the construction process, the comprehensive evaluation index system of the high core rockfill dam coupling construction progress and quality is designed ; the comprehensive evaluation index data acquisition process is analyzed; the comprehensive evaluation method for the high core rockfill dam filling unit is put forward. finally, a comprehensive evaluation of high core rockfill dam filling unit model based on TOPSIS is established. Engineering examples show that this method plays a guiding role in real-time control of coupling high core rockfill dam construction progress and quality.

scholarly journals Cheaper Watches

2005 ◽  
Vol 127 (02) ◽  
pp. 33-35
Author(s):  
Paul Sharke
Keyword(s):  
Real Time Control ◽  
Wireless Data ◽  
Process Data ◽  
Wireless System ◽  
Time Control ◽  
Monitoring Strategies ◽  
Wireless Data Acquisition ◽  
The Cost ◽  
Critical Process

This article focuses on research that looks at wireless networks to lower the cost of monitoring plant machinery. General Electric (GE), through its Global Research arm in Niskayuna, N.Y., will investigate wireless motor monitoring; Eaton Corp. of Cleveland will examine wireless data acquisition from electrical distribution gear; and Minneapolis-based Honeywell Inc. will look at wireless process control. The projects, now completing their first phases, will produce demonstration systems when they wrap up two years from now. Distribution product maker Eaton estimates that 90 percent of the electrical switching equipment the company sells today can monitor the quality of the power running through it. The company further estimates that 90 percent of the buyers for that equipment do not wire it up to take advantage of the data's availability. Unlike the monitoring strategies of GE or Eaton, both of which would tolerate intermittent data and even interruptions without drastic consequences, real-time control for Honeywell means the wireless system needs to throw robustness and reliability into the bargain. The Honeywell business problem is one of building confidence that transmitting critical process data over short-range radio networks can happen without interference.

Real time control of the integrated urban wastewater system using simultaneously simulating surrogate models

2002 ◽  
Vol 45 (3) ◽  
pp. 109-116 ◽  
Author(s):  
J. Meirlaen ◽  
J. Van Assel ◽  
P. A. Vanrolleghem
Keyword(s):  
Water Quality ◽  
Real Time ◽  
River Water ◽  
Control Strategy ◽  
Treatment Plant ◽  
River Water Quality ◽  
Urban Wastewater ◽  
Real Time Control ◽  
Time Control

The urban wastewater system (sewer and treatment plant) has a major impact on the river water quality of urban streams. To minimise this impact, real time control is a valuable option. Since the ultimate goal of any control strategy is to optimise the quality of the river system, it is useful to take pollutant immissions into account when determining the control strategy and/or the setpoints of the controller. However, a simultaneously simulating model of the complete system is needed in order to allow design and evaluation of such control strategies. In this work an integrated model of the urban wastewater system is created. This has been accomplished by implementing surrogate models of the three subsystems within a single software platform. The coupled submodels are subsequently used in a semi-hypothetical case study to optimise the resulting river water quality. An ammonia sensor in the river has been used to control the amount of water treated biologically in the treatment plant. It was shown that this integrated control could lower the peak ammonia concentration in the part of the river downstream of the treatment plant. Hence, a proof of principle has been given that the use of measurements in the river to perform control actions in the sewer system and the treatment plant is a promising option.

scholarly journals Innovative Strategy to Improve Precision and to Save Power of a Real-Time Control Process Using an Online Adaptive Fuzzy Logic Controller

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
R. Lasri ◽  
I. Rojas ◽  
H. Pomares ◽  
O. Valenzuela
Keyword(s):  
Fuzzy Logic ◽  
Real Time ◽  
Fuzzy Logic Controller ◽  
Control Process ◽  
Control Area ◽  
Real Time Control ◽  
Innovative Strategy ◽  
Adaptive Fuzzy ◽  
Time Control ◽  
Adaptive Fuzzy Logic

The main objective of this paper is to prove the great advantage that brings our novel approach to the intelligent control area. A set of various types of intelligent controllers have been designed to control the temperature of a room in a real-time control process in order to compare the obtained results with each other. Through a training board that allows us to control the temperature, all the used algorithms should present their best performances in this control process; therefore, our self-organized and online adaptive fuzzy logic controller (FLC) will be required to present great improvements in the control task and a real high control performance. Simulation results can show clearly that the new approach presented and tested in this work is very efficient. Thus, our adaptive and self-organizing FLC presents the best accuracy compared with the remaining used controllers, and, besides that, it can guarantee an important reduction of the power consumption during the control process.

Power Control Based on Pub/Sub for DFIG Wind Farm

2011 ◽  
Vol 343-344 ◽  
pp. 33-37
Author(s):  
Ling Ling Qiao ◽  
Zhi Gang Tian
Keyword(s):  
Power Control ◽  
Real Time ◽  
Wind Farm ◽  
Wind Farms ◽  
Real Time Control ◽  
Control Loops ◽  
Loosely Coupled ◽  
Time Control ◽  
Large Wind

Power control in large wind farm has a big impact on the Grid, especially in low connectivity ratio. Publish subscribe technology is asynchronous loosely coupled, and multi-to-multipoint communication as adapted for large distributed real-time control of network communications needs in the wind farm. This paper presents publish subscribe-based real-time power command-delivery method. It is well used to deliver the control of wind farm, reducing the time-delay in control loops. Simulation results show that the method further improves the quality of the power control of common coupling in large wind farms.

scholarly journals Wireless control process technical exploitation facility

2017 ◽  
Vol 41 (1) ◽  
pp. 107-128
Author(s):  
Jacek Paś
Keyword(s):  
Signal Transmission ◽  
Control Process ◽  
Technical Parameters ◽  
Quality Of Control ◽  
Mobile Cellular ◽  
Telephone System ◽  
Wireless Control ◽  
Object Technology ◽  
The Impact

Abstract In the article presents issues related to the control for which wireless is utilized in object technology. During the tests performed the technical parameters were determined the quality of control the object of the mobile cellular telephone system. It also analyzes the impact of the delay time of signal transmission control on the technical parameters of the object.

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