Abstarct: This paper presents an algorithm for solving the multi-objective reactive power dispatch problem in a power system. Modal analysis of the system is used for static voltage stability assessment. Loss minimization and maximization of voltage stability margin are taken as the objectives. Generator terminal voltages, reactive power generation of the capacitor banks and tap changing transf...

One of the most crucial high performance Systems-on-Chip design challenge is to front their power supply noise sufferance due to high frequencies, huge number of functional blocks and technology scaling down. Marking a difference from traditional post physical design static voltage drop analysis, a priori dynamic voltage drop evaluation is the focus of this work. It takes into account transient...

Three solutions for novel distribution automation implemented in medium voltage networks were developed as a theoretical study. The distribution automation studied included intelligent local automation arrangements also useable for ringtype networks. The profitability of the new technique was evaluated by comparing the costs of the automation investments to the savings obtained in the economic ...

This paper is motivated by the need to develop low cost, wireless velocity sensors for hydraulic research and application in streams. A velocity bend sensor (VBS) is a flexible plastic polyimide substrate sheet with an electronic resistor connected to a voltage divider. Drag of a moving fluid bends the sensor, changes the electronic resistance, and produces a voltage drop that can be related to...

A theory is offered for a novel device, mesoscopic four-terminal SQUID. The studied system consists of a mesoscopic four-terminal junction, one pair of terminals of which is incorporated in a superconducting ring and the other one is connected with a transport circuit. The nonlocal weak coupling between the terminals leads to effects of phase dragging and magnetic flux transfer. The behaviour o...

The electrowetting process is commonly used to handle very small amounts of liquid on a solid surface. This process can be modelled mathematically with the help of the shape optimization theory. However, solving numerically the resulting shape optimization problem is a very complex issue, even for reduced models that occur in simplified geometries. Recently, the second author obtained convincin...

Reproducibility of electrophoretic runs depends on the maintenance of a smooth and constant voltage gradient within the supporting medium or separation chamber. Power packs to supply constant current or constant voltage as measured at the pack are readily available, but if such a pack is used with constant voltage, the proportion of the voltage drop available for the electrophoretic separation ...

This article aims to present the design of a 4.5-V, 450-mA low drop-out (LDO) voltage linear regulator based on a two-stage cascoded operational transconductance amplifier (OTA) as error amplifier for photovoltaic solar DC-DC regulation. The aforementioned two-stage OTA is designed with cascoded current mirroring technique to boost up the output impedance. The proposed OTA has a DC gain of 101 ...

The dynamic supply current testing based on the measurement of voltage drop across a parasitic resistance of the supply voltage metal routing is presented. Auto-zero technique for voltage comparator offset cancelation, which provides very accurate and sensitive low voltage drop measurement across the sensing resistor is proposed. Therefore, the proposed sensor might be used as a current monitor...

The installation of stationary super-capacitor energy storage system (ESS) in metro systems can recycle the vehicle braking energy and improve the pantograph voltage profile. This paper aims to optimize the energy management, location, and size of stationary super-capacitor ESSes simultaneously and obtain the best economic efficiency and voltage profile of metro systems. Firstly, the simulation...