In all-digital phase-locked loops (ADPLLs), the quantization noise introduced by the frequency discretization in the digitally controlled oscillator (DCO) can affect the performance in terms of out-of-band phase noise. In particular, the additional quantization noise has to be kept significantly lower than the intrinsic oscillator phase-noise, mandating a very fine frequency resolution (e.g. le...

Photovoltaic power plants usually do not provide reactive output; hence the application of large photovoltaics in systems will decrease voltage stability level system. Capacitor banks can to compensate photovoltaic plants; therefore, capacitor overcome deficiency plants. However, effect bank installation on system’s is unknown. Therefore, research aims investigate whether installing a capacitor...

This paper presents protection and fault location of wye-connected shunt capacitor banks used in medium or high voltage applications. The proposed method is sensitive to single element failure obtained by using adaptive instantaneous superimposed current each phase. change equivalent reactance computed time-domain signals find the number failed types fault. faulted identified sign difference lo...

MODULARIZED MULTILEVEL AND Z-SOURCE POWER CONVERTER AS RENEWABLE ENERGY INTERFACE FOR VEHICLE AND GRID-CONNECTED APPLICATIONS By Dong Cao Due the energy crisis and increased oil price, renewable energy sources such as photovoltaic panel, wind turbine, or thermoelectric generation module, are used more and more widely for vehicle and grid-connected applications. However, the output of these rene...

The allocation of distributed generation and capacitor banks is critical for success in the planning power grids. A methodology developed optimal placement renewable (wind photovoltaic powers) based on technical economic parameters. In order to preserve horoseasonal stochastic dependence nature wind solar power, uses a model that integrates sequential Monte Carlo method diagonal band Copula mod...

In modern power systems, the installation of a shunt capacitor bank is one cheapest and most widely used methods for improving voltage profile. One composed mass units have ground, ungrounded, delta, wye connections that make configuration banks various. case long-term operation, failure single unit likely to cause uneven voltage, which will lead breakdown burning whole group, resulting in huge...