Banca de DEFESA: JOSÉ MÁRIO ALEXANDRE MELO DE OLIVEIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : JOSÉ MÁRIO ALEXANDRE MELO DE OLIVEIRA
DATE: 22/12/2023
TIME: 17:00
LOCAL: Sessão por videoconferência
TITLE:

PHASE AND AMPLITUDE OPTIMIZATION AND AUTOMATION OF A SMART ANTENNA ARRANGEMENT SYSTEM.

KEY WORDS:

Beamforming circuit, smart antennas, Yagi-Uda, PSO, switched smart antenna system, device automation, system performance analysis, packet loss prediction.

PAGES: 137
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUMMARY:

The supervisory concept for monitoring a smart grid of an electricity distribution concessionaire is introduced in this document. This describes a switched smart antenna system composed of: two arrays of four Yagi-Uda antennas mounted back-to-back; a beam forming circuit (CFF); and an Antenna Array Control (CAT), whose main characteristic is that its main lobe is maximized using the particle swarm optimization method (Particle Swarm Optimization - PSO), while its side lobes are minimized. The application of PSO integrated with the Ansys HFSS 3D electromagnetic simulation software obtained excellent results and was validated in practical experiments. The results measured in the open field are in accordance with the simulations and are comparable with the arrangement of energy distribution concessionaires. As expected, the gains obtained were greater when the main lobes were pointed at the objective angles. These characteristics meet the needs of a supervisory control system for electrical energy distribution companies, which require high-gain RF communication networks to monitor distant electrical reclosing switches in an area covered by the respective radio base stations.

Here, system performance is also analysed and a way to predict packet losses based on CFF parameters and radio and CAT transmission rates is proposed. The entire configuration described here was tested and performed very well, and is certainly a promising approach for accessing remote stations of electricity distribution companies without the need to install additional repeaters.

COMMITTEE MEMBERS:
Externo à Instituição - BRUNO AGRA KLEINAU
Externo à Instituição - BRUNO GOMES MOURA DE OLIVEIRA - IFPE
Externa à Instituição - CRISLANE PRISCILA DO NASCIMENTO SILVA
Externo ao Programa - 1845774 - DANIEL DE FILGUEIRAS GOMES - nullPresidente - 2131653 - MARCOS TAVARES DE MELO