A silicon photomultiplier (SiPM fabricated and characterized. The SiPM was (Separation of Absorption, Charge and Multipl which was optimized for blue light detection positron emission tomography (PET). The achieved high geometric fill factor of 64% and a low brea about 22V, while the temperature dependence of b is only 17mV/°C. The gain and photon detection device achieved were also measured un...

Ferroresonance is a special case of disturbance that involves high levels of overvoltage and overcurrents distortion. This phenomenon can severely affect voltage transformers and its consequences can be catastrophic. This paper analyses different practical solutions against ferroresonance phenomenon in voltage transformers, highlighting the current development of ferroresonance detection techni...

The computation program of the transient recovery voltages that appears across the terminals of a circuit breaker, after the low inductive current has been interrupted at the disconnecting no load high voltage transformers, using the routines set developed in Matlab is presented. The computation algorithm is based on the peculiarities of operation of the transformer. The computation program has...

Power quality and power disturbances have become an important increasing factor throughout electrical networks. Ferroresonance is one of these disturbances that can occur on distribution systems, causing quality and security problems. This paper analyzes the ferroresonance as a nonlinear resonance phenomenon of erratic nature and difficult prediction. The theoretical principles of this phenomen...

With the growing penetration of distributed energy resources (DER), accompanying challenges have led utilities to limit hosting capacities DER installations on distribution feeders. A static synchronous compensator (DSTATCOM) is a power electronic device provide dynamic injections and absorption reactive into grid with more flexible reliable voltage control quality improvement. management syste...

Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University, Aachen, Germany 2012, our group presented the Hyperion IID platform which uses PDPC’s digitial SiPMs (DPC). In this work we use the same platform equipped with scintillator dimensions closer to a clinical application. This allows an investigation of the time of flight (ToF) ...

The CVT equipment running on site is slightly modified to form a hybrid achieve transient overvoltage measurement, which theoretically feasible and practical. In order study the voltage division method based measure of power system, that is, low capacitor C3 connected in series between terminal medium C2 traditional ground, measurement realized through C3. This article uses ATP-EMTP establish i...

Aiming at the problems emerging in a pulse width modulation (PWM) drive system with long cables, accurate modeling of power cables is premise for predicting and analyzing these relevant phenomena, proper filter design key solution to problems. This paper proposes high-frequency cable models represent frequency-dependent characteristics, especially resistance which an easily overlooked factor th...

Abstract For the overvoltage problem brought by access of high-penetration photovoltaic power plants to low-voltage distribution network, this paper chooses deal with it using reactive regulation capability plant inverters, which reduces equipment investment in line voltage regulation. Based on theory inverter, a finite set model predictive direct control method is proposed constructing virtual...