Various method of speed control of DC motor is available in the literature. This paper presents design and implements of fuzzy logic in the speed control of DC motor. Fuzzy logic has found high application as a speed control techniques because of its ability to take into account vague and uncertainties [1]. This paper presents a MATLAB simulink model for speed control of DC motor using fuzzy lo...

The objective of this experimental study is to compare the performance of type-1 and type-2 fuzzy logic controllers on a real system where the control of liquid level and temperature are considered. By the use of genetic algorithms it is possible to optimize the fuzzy sets of each fuzzy controller assuring high control performance. The experimental results show that a better control in terms of...

Solar photovoltaic (PV) electrification is an important renewable energy source. The electric which is converted directly from solar irradiation via PV panel is not steady due to different solar intensity. To maximize the PV panel output power, perturb and observe (P&O) maximum power point tracking (MPPT) has been implemented into PV system. Through a buck-boost DC-DC converter, MPPT is able to...

Os autores relatam o estabelecimento de uma nova linhagem de células obtidas a partir de mosquitos Culex pipiens fatigans colonizados em laboratório. Empregando esta nova linhagem de células foi realizado um estudo comparativo de sua susceptibilidade a cinco arbovírus do Grupo C: Apeu.Marituba, Murutucu, Oribocae Itaqui. Todos os cinco tipos de arbovírus foram capazes de infectar células, demon...

Describes the design and implementation of an intelligent traffic lights controller based on fuzzy logic technology. A software has been developed to simulate the situation of an isolated traffic junction based on this technology. It is highly graphical in nature, uses the Windows system and allows simulation of different traffic conditions at the junction. A comparison can be made between the ...

Fuzzy logic is an extension of the standard 2-valued logic – with two possible truth values 0 (“false”) and (“true”) – to values (degrees of certainty) represented by arbitrary numbers from the interval [0, 1]. One of the main challenges in fuzzy logic is that we need to extend the usual logical operations from the set {0, 1} to the entire interval, and there are many possible extensions. One p...

The Static Synchronous Series Compensator (SSSC) is one of the powerful Flexible AC Transmission System (FACTS) controller recognized for power flow, power oscillation damping and improving transient stability. This paper proposes controller that is a combination of Fuzzy Logic Power Oscillations Damping (FLPOD) controller with Proportional and Integral Power Flow (PIPF) controller for SSSC to ...

In this paper a fuzzy logic scheme is applied for direct torque fuzzy control (DTFC) of five phase induction machine (FPIM). The proposed DTFC based on fuzzy logic technique switching table is described and compared with conventional direct torque control (DTC). The proposed fuzzy control strategy is simulated using Matlab/Simulink software. The simulation results show that DTFC method reduces ...

This paper presents the design and implementation of an integrated fuzzy logic controller (IFLC) for a high-speed permanent magnet DC (PMDC) motor speed control system. The proposed strategy is intended to improve the performance of the conventional controller by use of IFLC. The system is studied for step input with and without load (magnetic) conditions and for various standard input test com...

In this article we introduce Contextual Deontic Logic (Cdl) to analyze the relation between deontic, contextual and defeasible reasoning. The optimal state, and therefore the set of active obligations, can change radically when the violation context changes. In such cases we say that the obligations only in force in the previous violation context are defeated; contextual deontic logic is theref...