In this paper, speed control of asynchronous machine fed by a photovoltaic (PV) generator based on a direct proportional and integral controller and an adaptive fuzzy logic controller (AFLC) is presented. Also In this study, it is proposed that the PV output voltage is varies between certain cut in and cut off values that to extract maximum power during different insolation values instead of op...

Figure 4.1: Improving VLSI testability using (a) demultiplexers; (b) multi-Abstract Asynchronous VLSI designs are becoming an intensive area of research due to their advantages in comparison with synchronous circuits, such as the absence of the clock distribution problem, lower power consumption and higher performance. The work described in this thesis is an attempt to find possible ways to tes...

Five-phase induction generators in variable-speed wind energy systems are a focus of this study, and unique method regulating them utilizing indirect vector control is proposed systems. Grid-side regulation handled by two-level converter, whereas machine-side five-phase three-level converter. There five electrically distinct phases ASG, each one 720 apart. More power can be generated the same m...

As explained in the companion paper by Thomas Villiger et. al. and in [1] a GALS system is partitioned into many Locally-Synchronous Islands, such as the one shown in Fig. 1. The GALS approach restricts the asynchronous parts to some well-known circuits contained in a Self-Timed Wrapper around each Synchronous Island and makes it possible to use the synchronous design paradigm for the Synchrono...

The paper shows the practical possibility of implementing random number generators on field programmable gate arrays (FPGA) by combining various physically unclonable functions. A compact and scalable scheme a digital source based an asynchronous flip-flop D-type is proposed, which combines characteristics static memory functions ring oscillator Unlike existing generators, proposed can be used ...

This paper deals with the control of voltage and frequency of a wind turbine driven isolated asynchronous generator. The controller consists of an IGBT (Insulated Gate Bipolar Junction Transistor) based 3-leg voltage source converter and a battery at its DC link. The controller is having bidirectional flow capability of active and reactive powers by which it controls the system voltage and freq...

In this paper, we present a nonlinear robust control of active and reactive power by the use the PI regulators control (FOC) a Double-Fed Asynchronous Generator (DFIG) system incorporated in a windturbine. The power transfer between the stator and the network grid is carried out by acting on the rotor via a bidirectional signal converter. Initially, a control strategy of the MPPT-DFIG is presen...

Universal Asynchronous Receiver Transmitter (UART) is a popular two wire serial communication interface between two microcomputer based systems. The programmable logic devices can be used for such application by developing core for UART. This design included transmitter, receiver and baud rate generator. By using hardware descriptive language UART simulation can be tested before it can be loade...

VF controller for wind energy conversion system employing a self-excited asynchronous generator, that has the capability for harmonic elimination, load balancing , and neutral current compensation along with voltage and frequency. This paper presents a review of VF controllers, other related economic and technical aspects, and their selection for specific applications. It is aimed at providing ...