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A Fuzzy Logic Based Controller for Damping Transient Oscillation of Flexible AC Transmission System


Affiliations
1 Universiti Teknologi Mara UiTM, Shah Alam, Malaysia
2 University Technology Mara UiTM, Shah Alam, Malaysia
     

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In this research paper, an efficient power controller is introduced which consists of series and shunt converters both have inherited characteristics of manipulating reactive power flow in an electronics based Unified Power Flow Controller (UPFC) in a multi-machine power system and filter out the transient contaminations. The proposed structure provides an overall variable proportional and integral gain which reduces transient oscillations locally as well as globally of synchronous generators in multi-machine power systems. The compensation performance and capacity are examined in term of stability check at the instant of disturbances such as load shedding, faults, sudden switching etc. A fuzzy logic-based controller is constructed to adjust the reference signal for the system based on sliding surface and its derivative hence provides far better performance in steady state as well as dynamic operation that quickly dies out the system oscillations comparing it with conventional PI controller. Simulation and experimental results of few case studies validate the satisfactory operation of this model.

Keywords

Damping, Fuzzy, Stability, Transient, Unified.
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  • A Fuzzy Logic Based Controller for Damping Transient Oscillation of Flexible AC Transmission System

Abstract Views: 361  |  PDF Views: 3

Authors

N. M. S. Hannoon
Universiti Teknologi Mara UiTM, Shah Alam, Malaysia
A. F. B. Abidin
University Technology Mara UiTM, Shah Alam, Malaysia
M. Yehya
University Technology Mara UiTM, Shah Alam, Malaysia

Abstract


In this research paper, an efficient power controller is introduced which consists of series and shunt converters both have inherited characteristics of manipulating reactive power flow in an electronics based Unified Power Flow Controller (UPFC) in a multi-machine power system and filter out the transient contaminations. The proposed structure provides an overall variable proportional and integral gain which reduces transient oscillations locally as well as globally of synchronous generators in multi-machine power systems. The compensation performance and capacity are examined in term of stability check at the instant of disturbances such as load shedding, faults, sudden switching etc. A fuzzy logic-based controller is constructed to adjust the reference signal for the system based on sliding surface and its derivative hence provides far better performance in steady state as well as dynamic operation that quickly dies out the system oscillations comparing it with conventional PI controller. Simulation and experimental results of few case studies validate the satisfactory operation of this model.

Keywords


Damping, Fuzzy, Stability, Transient, Unified.

References