December 11, 2017
Comments Off on Review of Active and Reactive Power Sharing Strategies in Hierarchical Controlled Microgrids
Posted in: IEEE 2017, NS2
Review of Active and Reactive Power Sharing Strategies in Hierarchical Controlled Microgrids Abstract Microgrids consist of multiple parallel-connected distributed generation (DG) units with coordinatedcontrol strategies, which are able to operate in both grid-connected and islanded mode. Microgrids are attracting more and more attention since they can alleviate the stress of main transmission systems, reduce feeder losses, and improve system power quality. […]
December 11, 2017
Comments Off on Beamforming OFDM Performance Under Joint Phase Noise and IQ Imbalance
Posted in: IEEE 2017, NS2
Beamforming OFDM Performance Under Joint Phase Noise and I/Q Imbalance Abstract Phase noise (PHN) and in-phase/quadrature (I/Q) imbalance are two major radio-frequency (RF) impairments in direct-conversion wireless transceivers. Beamforming and orthogonal frequency-division multiplexing (OFDM) schemes have been adopted in broadband wireless standards due to their significant performance gains. In this paper, we analyze the impact of joint I/Q imbalance and PHN onbeamforming OFDM direct-conversion transceivers. We derive an exact […]