In order to emulate a DC motor control, vector control strategy is employed to decouple flux and torque of an induction motor. The great advantage of this technique is that the induction motor can be controlled with the presentation of all of its properties such as high efficiency, robustness, low maintenance cost. The most widely employed controller is the conventional proportional integral (P...

The main objectives of vehicle motion control on an automated highway system are stable and safe automatic longitudinal and/or lateral path following in a platoon of vehicles. Various controllers can be used to satisfy the same objectives, but they may require different variables to be sensed or different conditions to be met. Supervision can select a controller and switch to a different contro...

DC-DC converters are widely used in application such as computer peripheral power supplies, car auxiliary power supplies and medical equipments. Positive output element Luo converter performs the conversion from positive source voltage to positive load voltage. Due to the timevarying and switching nature of the power electronic converters, their dynamic behaviour is highly non-linear. Conventio...

The paper presents an optimum design procedure for the controller used in the frequency converter of a variable speed wind turbine (VSWT) driven doubly fed asynchronous generator (DFAG) by using Proportional-Integral (PI) controller. The cascaded control is frequently used in the control of the frequency converter using the proportional PI controllers. The setting of the parameters of the PI co...

An industrial weigh belt feeder is used to transport solid materials into a manufacturing process at a constant feedrate. It exhibits nonlinear behavior because of motor friction, saturation, and quantization noise in the sensors, which makes standard autotuning methods difficult to implement. This paper proposes and experimentally demonstrates two types of fuzzy logic controllers for an indust...

This paper presents a performance based comparative study of various fuzzy logic controllers (FLCs) to control the speed of squirrel-cage induction motor (SCIM) by replacing the conventional proportional??integral (PI) controller. The fuzzy logic based controller does not require any identification of motor dynamic to control its speed and also assures the disturbance rejection with high robust...

This paper analyses the control of nonlinear plant with the changing dynamics. Adaptive controllers, based on fuzzy logics, are synthesized for the control of air pressure and water level. Their satisfactory efficiency is experimentally demonstrated under different working conditions. Fuzzy controllers are compared to conventional PI and PID controllers.

Abstract: The control of liquid level in tanks and flow between tanks is a basic problem in the process industries. Almost all theprocesses in the industries are non-linear in nature. Designing a controller for a nonlinear process is an important problem. The problem of level control in interacting tank processes are system dynamics and interacting characteristics. In interacting process, dynam...

In the first part of this paper, we investigate explicit structure of the typical Takagi– Sugeno (TS) fuzzy PI and PD controllers. By typical, we mean the use of at least three trapezoidal or triangular input fuzzy sets for each input variable, fuzzy rules with linear consequent, Zadeh fuzzy logic AND operator and the centroid defuzzifier. This configuration covers many TS fuzzy controllers in ...