<p>Optimal control of any variable speed wind turbine needs maximum power point tracking (MPPT) coupled to doubly fed induction generator (DFIG) for better generation. This paper offers a novel direct servo-speed turbine. latter is based on DFIG optimal hysteresis MPPT inverter current combined with space voltage modulation (SVM) technique, thus providing stable and continuous energy flow...

In the last decades, various events have shown that electromechanical oscillations are a major concern for large interconnected Alternative Current (AC) power systems. DC segmentation - method consists in turning AC grids into set of asynchronous clusters linked by Direct (DC) links is promising solution to mitigate this and other issues. However, no systematic procedure given system exists so ...

The AMBA on-chip bus architecture is a well-known open specification that explains how to connect and manage the functional units make up System-On-Chip (SoC). design implementation of an AHB Master, RAM, ROM, FIFO Memory Controller proposed in this paper. It primarily divided into two categories: operation initiator (AHB MASTER) SLAVE. Furthermore, master generate burst mode, single transfer a...

Water-pumped storage systems have become an ideal alternative to regulate the intermittent power delivered by renewable energy sources. For small-scale operations, a type of centrifugal pump coupled asynchronous machines represents adequate solution due their techno-economic feasibility in addition ability operate as reversible systems. This work provides novel port-Hamiltonian modelling approa...

The Armed Forces use a great number of various types of gensets. The aim is to reduce this large number of diverse genset types, that is, to standardize the equipment used with the aim of simplifying maintenance and modes of use. For this reason, tests are conducted which should provide factual conclusions as to the types of gensets which are both most favourable for use and maintenance and als...

Modern functional programming deals with parallel and distributed computation. The lazy functional programming language Clean was extended for cluster computations using CORBA as middleware. The earlier Clean-CORBA interface supports developing and using skeletons for distributed and cluster computing in a limited way only. The interface user encounters three major problems. Clean skeletons are...

The asynchronous systems f are multi-valued functions, representing the non-deterministic models of the asynchronous circuits from the digital electrical engineering. In real time, they map an ’admissible input’ function u : R → {0, 1}m to a set f (u) of ’possible states’ x ∈ f (u), where x : R → {0, 1}n. When f is defined by making use of a ’generator function’ Φ : {0, 1}n × {0, 1}m → {0, 1}n,...

The design of a 13.56 MHz/402 MHz autonomous wireless sensor node with asynchronous ECG monitoring for near field communication is presented. The sensor node consists of an RF energy harvester (RFEH), a power management unit, an ECG readout, a data encoder and an RF backscattering transmitter. The energy harvester supplies the system with 1.25 V and offers a power conversion efficiency of 19% f...

in this article our objective is to obtain steady state characteristics of shunt, series, and separately excited dc motors coupled with a centrifugal water pump supplied through a step-up, step-down, and cuk converter from photovoltaic generator. we assume that there are no storage batteries and, of course, the system must operate on maximum utilization i.e. maximum water must be pumped. it is ...

Universal Asynchronous Receiver Transmitter (UART) is the use of the serial communication protocol, low velocity, short distance, low cost data exchange between computer and peripherals. Due to simultaneous transmission of data bits or multiple accesses, the system complexity increases, in parallel communication so, to alleviate this drawback, we uses serial communication. UART includes three m...