IEC 61850-9-2 is an international substation automation standard that proposes a Process Bus communication network between process level equipment and bay level Intelligent Electronic Devices (IEDs) used for power systems protection and control. This paper considers the drive towards the use of IEC 61850-9-2 Process Bus in substations. The impact of the IEC 61850-9-2 standard on the operating p...

While AlGaN quantum cascade electro-optic devices recently received particular interest, the behavior of such vertical devices is not well understood and their performance greatly lags behind that of horizontal devices. The RTD is a benchmark for any such quantum cascade/intersubband (ISB) device. While epitaxial quality of InGaN/AlGaN could be improved so far that blue laser diodes became poss...

A novel epitaxy-on-electronics (EoE) technology, developed at MIT, allows the integration of 111-V heterostructures and commercial VLSI GaAs circuits. We have designed a monolithic resonant-tunneling diode(RTD) based static random access memory which uses this technique. We review both the EoE process and the design and epitaxial growth techniques for high performance In,Gal-,As/AIAs RTDs suita...

With the growth in continuous energy demand, high-voltage Multi-Terminal DC (MTDC) systems are technically and economically feasible to transmit bulk power integrate additional sources. However, high vulnerability of MTDC faults, especially pole-to-pole (P2P) is challenging. The development fault ride-through techniques such as circuit breakers still challenging due their cost complex operation...

The fundamentally sound non-Equilibrium Green’s function (NEGF) approach provides the theoretical basis for NEMO 1-D as the first nanoelectronic TCAD tool. Effects of quantum charging, bandstructure and incoherent scattering from alloy disorder, interface roughness, acoustic phonons, and polar optical phonons are modeled. Engineers and experimentalists who desire a black-box design tool as well...

We propose an efficient flow and error control scheme for high-throughput transport protocols, which (i) decouples flow control from error control, and (ii) uses a second-order rate control, called -control, for flow control and a new sliding-window scheme for error control. The control minimizes the need for packet retransmissions by adjusting the rate-gain parameter in response to the variati...

In this paper, a droop-based sliding mode controller (DBSMC) is designed for power sharing in an isolated DC microgrid (DC MG), with improved nonlinear droop model, the presence of bounded structured uncertainties and external disturbances. The proposed DBSMC strategy does not require any communication link. design process such that trade-off between two factors proportional precise voltage reg...

O artigo visa analisar variações na conversão de energia em um sistema fotovoltaico e seus efeitos rede elétrica utilizando para isso simulações tempo real. empregado consiste carga alimentada através duas fontes: (i) geração proveniente uma planta solar PV (ii) modelo simplificado da elétrica. utilizado corresponde ao perfil demanda alimentador cidade Leopoldina, Minas Gerais, o consumo medido...

The demand for energy storage systems is rising together with the proportion of renewable sources (RES) in power systems. highest capacity among various provided by pumped-storage hydropower (PSH). In this paper, ability real-time digital simulator (RTDS), e.g., dSpace–SCALEXIO, to emulate a complex plant four units, two common penstocks, surge tank, and long headrace tunnel investigated. RTDS ...