This paper presents a comparative evaluation of the proportional–integral, sliding mode and fuzzy logic controllers for applications to power converters. The mismatch between the characteristics which lead to varying performance is outlined. This paper also demonstrates certain similarities of both the fuzzy logic controller and sliding mode controller. Sensitivity of these controllers to suppl...

A new approach for fuzzy control of control and maintenance systems is introduced. A standard fuzzy controller with additional and new predicates is used. These predicates handle temporal aspects to detect or predict the behaviour of a process in the past or in the future. With the ability to examine the past or future behaviour, a user of the temporal fuzzy logic controller can more easily int...

Defuzzification is the process of converting a fuzzy quantity to precise quantity, just as fuzzification is the conversion of a precise quantity to a fuzzy quantity. Various types of defuzzification methods, are available for conversion of fuzzy to non-fuzzy. In this paper, defuzzification functions in intuitionistic fuzzy environment such as triangular, trapezoidal, L-trapezoidal, R-trapezoida...

The design methods of fuzzy logic controls (FLC's) based genetic algorithms (GA's) are used to get an optimized and additional control signal to the high voltage direct current (HVDC) systems, through genetic algorithms. The optimal values for the gain factors associated with each of the two fuzzy logic controller inputs and its output is achieved without changing the membership functions or th...

This paper proposes the design of a cascade control using fuzzy logic. A new set of fuzzy logic rules are added to a conventional Fuzzy Logic Controller (FLC) to build the Fuzzy Controller with Intermediate Variable (FCIV). The proposed controller is tested in the control of a nonlinear chemical process, and its performance is compared to other controllers.

A multi-sensor fusion system for monitoring and control of depth of anaesthesia in the operating theatre is described. Two types of anaesthesia measures are considered, the first being based on auditory evoked responses, while the second measure is based on cardiovascu-lar system signals. The first measure is based on analysis of the signal using wavelets and a neuro-fuzzy system, while the sec...

A decision algorithm using the concept of fuzzy logic is proposed in determining strategic shots in a game of pool. Each possible shot on the board is ranked in order to determine the level of difficulty based on two distance parameters and an angle parameter. The set of parameters in the fuzzy system can be tuned to suit the specific playing style (or player’s behavior) on the choice of the ma...