An adaptive Mamdani based fuzzy logic controller has been designed for controlling a static compensator (STATCOM) in a multimachine power system. Such a controller does not need any prior knowledge of the plant to be controlled and can efficiently control a STATCOM during different disturbances in the network. A model free approach using the controller output error is applied for training purposes that adaptively changes the controller output parameters based on a gradient descent method. Moreover, shrinking span membership functions are used for a more stable and accurate control performance. Simulation results show that the proposed controller outperforms the conventional PI controller during dynamic and transient disturbances.

Meeting Name

13th International Conference on, Intelligent Systems Application to Power Systems, 2005


Electrical and Computer Engineering

Keywords and Phrases

Mamdani Controller; PI Controller; Adaptive Mamdani Fuzzy Logic; Adaptive Control; Adaptive Fuzzy Logic Controller; Dynamic Disturbance; Fuzzy Control; Gradient Descent Method; Gradient Methods; Multimachine Power System; Power System Control; Shrinking Span Membership Functions; Static VAr Compensators; Static Compensator; Transient Disturbance

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2005 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jan 2005