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Performance Comparison of Two Controllers for AVR SG system | ||
| Engineering and Technology Journal | ||
| Volume 31, Issue 21, 2013, Pages 4029-4043 PDF (1.08 M) | ||
| DOI: 10.30684/etj.2013.189595 | ||
| Authors | ||
| Amjad J. Humaidi; Firas A. Raheem | ||
| Control and Systems Department, University of Technology / Baghdad | ||
| Abstract | ||
| The voltage stability and power quality of the electrical system depend on proper operation of Automatic Voltage Regulator (AVR). Nowadays, the design technology of AVR is being broadly improved. Nonlinearities, parametric uncertainty, ill-defined mathematical model are an evitable problem faced in controlling the output voltage of Synchronous Generator (SG) leading to greater complexities in the design of the control system. Therefore, the application of Artificial Intelligence based controllers in electric power systems is becoming an important field of research. In the present work, the standard direct current exciter type (DC1A) and an intelligent controller have been suggested to replace the excitation circuit for improving the dynamic performance of the AVR SG system. The performance comparison between two suggested controllers is based on how well these controllers improve the dynamic responses of SG when exerting to different loading conditions and different durations of fault application. The results show that the intelligent controller can give better dynamic behavior than its competitor. Moreover, when applying worst fault condition (short circuit case), it is seen that the fuzzy logic (FL) controller can keep satisfactory and stable dynamic characteristic to longer fault exertion time interval. | ||
| References | ||
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