Comparative study on the performance of a commercially designed induction generator with induction motors operating as self excited induction generators

1993 ◽  
Vol 140 (5) ◽  
pp. 374 ◽  
Author(s):  
S.P. Singh ◽  
B. Singh ◽  
M.P. Jain
Keyword(s):  
Comparative Study ◽  
Induction Motors ◽  
Induction Generator ◽  
Induction Generators

Studies on the use of conventional induction motors as self-excited induction generators

1988 ◽  
Vol 3 (4) ◽  
pp. 842-848 ◽  
Author(s):  
S.S. Murthy ◽  
B.P. Singh ◽  
C. Nagamani ◽  
K.V.V. Satyanarayana
Keyword(s):  
Induction Motors ◽  
Induction Generators

Influence of shape and material of rotor bars on performance characteristics of single-phase self-excited induction generators

2019 ◽  
Vol 38 (4) ◽  
pp. 1235-1244 ◽  
Author(s):  
Aleksander Leicht ◽  
Krzysztof Makowski
Keyword(s):  
Single Phase ◽  
General Purpose ◽  
Performance Characteristics ◽  
Induction Generator ◽  
Content Type ◽  
Operating Range ◽  
Induction Generators ◽  
Stable Operating ◽  
Rotor Cage ◽  
And Performance

Purpose The purpose of the paper is to present an analysis of an influence of shape and material of rotor bars on the process of self-excitation and performance characteristics of single-phase, self-excited induction generator (SP-SEIG). Design/methodology/approach The presented analysis is based on the results of transient simulations of SP-SEIG performed with the use of field-circuit model of the machine. Four various shapes of the rotor bars and two different conductor materials were investigated. The results for the base model with rounded trapezoidal rotor slots were validated by measurements. Findings An improvement of the performance characteristics – the extension of the stable operating range of the generator – was obtained for rectangular copper rotor bars. The improvement is the result of strong skin effect in the squirrel rotor cage. Application of round rotor slots results in shorter time of voltage build-up during the self-excitation of the generator caused by less apparent deep bar effect in round bars. Originality/value The originality of the paper is the application of the copper rotor cage in the single-phase, self-excited induction generator. Its use is beneficial, as it allows for extension of the range of stable operating range. The results may be used for designing new constructions of the single-phase, self-excited induction generators, as well as the constructions based on general purpose single-phase induction motors.

Comparative Study of Methods to Evaluate Three Phase Induction Motors Loading

2018 ◽  
Author(s):  
Karen Barbosa de Melo ◽  
Marcos Vinicios Gomes dos Reis ◽  
Michelle Kitayama da Silva ◽  
Marcelo Gradella Villalva ◽  
Rubem Cesar Rodrigues Souza
Keyword(s):  
Comparative Study ◽  
Induction Motors ◽  
Three Phase

Voltage and Frequency Control of Variable Speed Induction Generator using One Cycle Control Technique

2015 ◽  
Vol 6 (4) ◽  
pp. 723
Author(s):  
T. Elango ◽  
A.Senthil Kumar
Keyword(s):  
Frequency Control ◽  
Pi Controller ◽  
Control Technique ◽  
Induction Generator ◽  
Variable Speed ◽  
Zero Crossing ◽  
Power Generator ◽  
Induction Generators ◽  
Wind Power Generator ◽  
Electronic Load

Induction generators are widely used to extract the energy from renewable sources, particularly as a wind power generator either grid connected or isolated operation. The problem associated with stand-alone mode operation is voltage and frequency control. An electronic load controller is used for frequency / voltage control. It uses PI controller to generate the gating signal for the DC chopper. This method has the fault of bad dynamic response and thedistortion of output voltage at zero-crossing. To overcome the defect of PI controller when steady state error is equal to zero, a one cycle control technique suggested and implemented. Simulation of wind driven self-excited induction generator (SEIG) performance is studied and results are discussed.

Transient Behavior Analysis of Induction Generator at Three-Phase Fault Condition

2007 ◽  
Vol 8 (2) ◽  
Author(s):  
Tomonobu Senju ◽  
Ryo Kuninaka ◽  
Toshiaki Kaneko ◽  
Yoshitaka Miyazato ◽  
Atsushi Yona ◽  
...  
Keyword(s):  
Block Diagram ◽  
Transient Behavior ◽  
Induction Generator ◽  
Matlab Simulink ◽  
System Equation ◽  
Wind Generators ◽  
Induction Generators ◽  
Three Phase ◽  
Analytical Formulas ◽  
Effective Use

In recent years, renewable energy generation has been coming up for effective use of natural energy, such as wind energy. Induction generators consisting squirrel-cage rotors are widely used as wind generators because of their salient features like robust rotor design, simplicity in the construction, maintenance free operation, etc. In this paper, it is derived that the transient current, electromechanical torque, and active power taking into account rotor speed change of induction generators at three-phase fault conditions. The output equations of the induction generator has nonlinearity, and the speed-time characteristic in a fault period is also expressed by the nonlinear equation. The approximation to derive analytical formulas for transient conditions is proposed, and the transient behavior of the induction generator is analyzed by the developed equations. The simulation block diagram in MATLAB/SIMULINK is constituted using the system equation in consideration of the nonlinearity of the induction generator. The simulation results obtained from each theoretical analysis are in close agreement with that of results obtained using MATLAB/SIMULINK simulation. Furthermore, theoretical discussion also developed to determine the fault phase angle and the time at which maximum transient currents flow in the system.

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