scholarly journals A Concise Review of Control Techniques for Reliable and Efficient Control of Induction Motor

2018 ◽  
Vol 9 (3) ◽  
pp. 1124
Author(s):  
Abdullah Alwadie
Keyword(s):  
Induction Motor ◽  
Research Work ◽  
Optimization Techniques ◽  
Future Research ◽  
Variable Frequency ◽  
Control Techniques ◽  
Control Scheme ◽  
Control Schemes ◽  
Variable Frequency Drives ◽  
And Performance

<span style="color: black; font-family: 'Times New Roman','serif'; font-size: 10pt; mso-fareast-font-family: SimSun; mso-themecolor: text1; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Induction motors are work-horse of the industry and major element in energy conversion. The replacement of the existing non-adjustable speed drives with the modern variable frequency drives would save considerable amount of electricity. A proper control scheme for variable frequency drives can enhance the efficiency and performance of the drive. This paper attempt to provide a rigorous review of various control schemes for the induction motor control and provides critical analysis and guidelines for the future research work. A detailed study of sensor based control schemes and sensor-less control schemes has been investigated. The operation, advantages, and limitations of the various control schemes are highlighted and different types of optimization techniques have been suggested to overcome the limitations of control techniques</span>

ANTECEDENTS AND CONSEQUENCES OF ORGANIZATIONAL JUSTICE

2016 ◽  
Vol 12 (02) ◽  
Author(s):  
Reeta Yadav
Keyword(s):  
Job Satisfaction ◽  
Organizational Justice ◽  
Organizational Citizenship ◽  
Organizational Citizenship Behavior ◽  
Turnover Intentions ◽  
Research Work ◽  
Citizenship Behavior ◽  
Future Research ◽  
Antecedents And Consequences ◽  
And Performance

Employee’s perception regarding fairness in the organization is termed as organizational justice. The objective of this paper is to study the antecedents and consequences of organizational justice on the basis of earlier relevant studies from the period ranging from 1964 to 2015. Previous research identified employee participation, communication, justice climate as the antecedents and trust, job satisfaction, commitment, turnover intentions, organizational citizenship behavior and performance as the consequences of organizational justice. Finding reveals the gaps existing in the literature and gives suggestions for future research work.

Design and Performance Evaluation of a Bio-Inspired and Single-Motor-Driven Hexapod Robot With Dynamical Gaits

2015 ◽  
Vol 7 (3) ◽  
Author(s):  
Ke-Jung Huang ◽  
Shen-Chiang Chen ◽  
Haldun Komsuoglu ◽  
Gabriel Lopes ◽  
Jonathan Clark ◽  
...  
Keyword(s):  
High Speed ◽  
Inverted Pendulum ◽  
Slip Model ◽  
Hexapod Robot ◽  
Actuation Frequency ◽  
Nonlinear Properties ◽  
Control Scheme ◽  
Control Schemes ◽  
Noncircular Gears ◽  
And Performance

Over its lifetime, the hexapedal robot RHex has shown impressive performance. Combining preflexes with a range of control schemes, various behaviors such as leaping, running, bounding, as well as running on rough terrain have been exhibited. In order to better determine the extent to which the passive and mechanical aspects of the design contribute to performance, a new version of the hexapedal spring-loaded inverted pendulum (SLIP)-based runner with a novel minimal control scheme is developed and tested. A unique drive mechanism is utilized to allow for operation (including steering) of the robot with only two motors. The simplified robot operates robustly and it exhibits walking, SLIP-like running, or high-speed motion profiles depending only on the actuation frequency. In order to better capture the critical nonlinear properties of the robot’s legs, a more detailed dynamic model termed R2-SLIP is presented. The performance of the robot is compared to the basic SLIP, the R-SLIP, and this new R2-SLIP model. Furthermore, these results suggest that, in the future, the R2-SLIP model can be used to tune/improve the design of the leg compliance and noncircular gears to optimize performance.

scholarly journals VFD Based Performance Analysis of the Pump

2020 ◽  
Vol 8 (6) ◽  
pp. 2896-2899
Keyword(s):  
Performance Analysis ◽  
Induction Motor ◽  
Energy Cost ◽  
Operating Cost ◽  
Variable Frequency ◽  
Input Frequency ◽  
Motor Speed ◽  
Load Torque ◽  
Common Technique ◽  
And Performance

Electric power tconservation tis important tin tthe induction motor tfield tbecause ttwo-thirds of tthe tearths electricity tis being tconsumed tby tinduction motors. tAC motors tare said tto tconsume tmore tenergy tin the tindustry. The tmain problem twith tthese tinduction motors tare tthey consume very thigh tpower tconsumption. The tuse tof tvariable frequency tdrives (VFD’s) thas treduced this tcurrent. Variable Frequency tDrive tis ta common technique tused to vary tthe speed tof tAC timpulse motor by changing their input frequency. These tdrives tuse large motors tto start tsmoothly and constantly tadjust tthe speed. With tthe use tof tVFD’s, energy cost tsavings tare particularly important tin tpump applications where tthe load torque and tpower tvary twith respect tto tthe induction motor speed. tWith tthat tsystem tit helps tto treduce the operating cost tof tthe twhole tsystem, which tprovides operational benefits tand timproves tthe system. tLife. tThis paper contains texperimental tstudies tof induction tmotors with VFD tand tVFD tfor tpumps. tWith tthat study's analysis, this paper treflects ta treview ton tthe stimulus and performance analysis tof tthe tinduction tmotor twith tand without tVFD.

Minimizing Induction Motor Losses by Excitation Control in Variable Frequency Drives

1984 ◽  
Vol IA-20 (5) ◽  
pp. 1244-1250 ◽  
Author(s):  
Daniel S. Kirschen ◽  
Donald W. Novotny ◽  
Warin Suwanwisoot
Keyword(s):  
Induction Motor ◽  
Variable Frequency ◽  
Excitation Control ◽  
Variable Frequency Drives

A Novel Dual-Loop Control Scheme for Payload Anti-Swing and Trolley Position of Industrial Robotic 3DOF Crane

2015 ◽  
Vol 789-790 ◽  
pp. 658-664 ◽  
Author(s):  
Muhammad Faisal ◽  
Mohsin Jamil ◽  
Usman Rashid ◽  
Syed Omer Gilani ◽  
Yasar Ayaz ◽  
...  
Keyword(s):  
Feedback Control ◽  
State Feedback ◽  
Research Work ◽  
State Feedback Control ◽  
Experimental Results ◽  
Loop Control ◽  
Control Techniques ◽  
Swing Angle ◽  
Suggested Technique ◽  
Control Scheme

In this paper, we propose a novel dual-loop control scheme (DLCS). We did not see such investigation of DLCS in the previous research work. DLCS scheme is a combination of classical PID and advanced state feedback control techniques. The proposed technique is used to control swing angle and trolley position of a 3DOF crane. Extensive simulations have been carried out using MATLAB / Simulink and practically validated on a Quanser 3DOF crane system. Experimental results indicate that the proposed DLCS control scheme improves crane operation by damping the payload oscillations. The scheme also smoothen the trolley motion. Our suggested technique provides better performance in terms of payload oscillations comparing to the classical PID.

Predictive feedback control: An alternative to proportional-integral-derivative control

2009 ◽  
Vol 223 (7) ◽  
pp. 901-917
Author(s):  
L Giovanini
Keyword(s):  
Predictive Control ◽  
Pid Controller ◽  
Proportional Integral Derivative ◽  
Delay Compensation ◽  
Industrial Practice ◽  
Proportional Integral ◽  
Control Scheme ◽  
Control Schemes ◽  
And Performance ◽  
Time Delay Compensation

Even though employed widely in industrial practice, the popular proportional-integral-derivative (PID) controller has weaknesses that limit its achievable performance. In this paper, an alternative control scheme that combines the simplicity of the PID controller with the versatility of model predictive control is presented. The result is a controller that combines the time-delay compensation capability of predictive control algorithms, the effectiveness of inferential control schemes for disturbance rejection, and the adaptation capabilities of switching controllers. The robust stability and performance of the controller are analysed. These results are then used to generate two tuning procedures. The design, implementation, and performance of the controller are illustrated via simulations on linear and non-linear systems.

Implementation of scalar control scheme for variable frequency induction motor actuator system

2003 ◽  
Vol 106 (1-3) ◽  
pp. 306-309 ◽  
Author(s):  
Maria G. Ioannides ◽  
Stelios A. Papazis ◽  
Fotini G. Ioannidou
Keyword(s):  
Induction Motor ◽  
Variable Frequency ◽  
Scalar Control ◽  
Control Scheme ◽  
Actuator System

Anti-Sway Control Schemes of a Boom Crane Using Command Shaping Techniques

2014 ◽  
Vol 67 (5) ◽  
Author(s):  
M. H. I. Ishak ◽  
Z. Mohamed ◽  
R. Mamat
Keyword(s):  
Dynamic Characteristics ◽  
Comparative Assessment ◽  
Input Shaping ◽  
Command Shaping ◽  
Control Techniques ◽  
Shaping Technique ◽  
Control Schemes ◽  
Frequency Domains ◽  
And Performance ◽  
Boom Crane

This paper presents investigations into the applications and performance of command shaping techniques for control of payload sway of a boom crane based on filtering and the input shaping technique. The mathematical dynamic model describing the motion of the boom crane is developed using the Lagrange-Euler's equation. The dynamic characteristics of the system are studied and analysed using the Matlab Simulink in time and frequency domains. Command shaping techniques based on filtering and the input shaping techniques are then developed and used to control the payload sway of the boom crane. The performance of the control techniques are studied in terms of the level of sway reduction, time response and robustness. Finally, a comparative assessment of the effectiveness of the control schemes for sway control of a boom crane is presented and discussed.

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