Wyniki wyszukiwania:

Distributed generation systems (DGs) have been penetrating into our energy networks with the advancement in the renewable energy sources and energy storage elements. These systems can operate in synchronism with the utility grid referred to as the grid connected (GC) mode of operation, or work independently, referred to as the standalone (SA) mode of operation. There is a need to ensure continuous power flow during transition between GC and SA modes, referred to as the transition mode, in operating DGs. In this book, efficient and effective transition control algorithms are developed for DGs...

The book provides analytic frequency-domain models that use system and controller parameters to accurately characterize the power conversion harmonics as well as modulation/demodulation processes resulting from the deployment of hysteresis current-controlled inverters in power systems. AC and DC harmonic interactions under both ideal and non-ideal (distorted) system conditions are derived and verified for the fixed- and variable-band hysteresis controllers. The spectral characteristics, such as frequency orders, spectral magnitude and bandwidth, are given in terms of line and controller...