Banca de DEFESA: EDUARDO LACERDA CAMPOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : EDUARDO LACERDA CAMPOS
DATA : 13/09/2018
HORA: 08:30
LOCAL: LACI
TÍTULO:

Attitude Control for Nanosatellites

PALAVRAS-CHAVES:

Attitude Control, INPE, Nanosatellite, Extended Kalman Filter.

PÁGINAS: 100
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
ESPECIALIDADE: Controle de Processos Eletrônicos, Retroalimentação
RESUMO:

With advances in nanosatellite research, as an alternative to space exploration, the Instituto Nacional de Pesquisas Espaciais (INPE) is interested in using this new nanosatellite technology in its future missions. This makes it necessary to have a platform on which to study nanosatellite behavior in space. In this context, the following thesis implemented a simulator, composed with a navigation system and a proportional and derivative controller (PD). The sensors used to estimate the attitude were composed of a magnetometer and a solar sensor, simulated by using an ideal model with white noise. To represent the kinematics, the quaternion was adopted and the nanosatellite was a rigid body. In the navigation system, the norm-constrained Extended Kalman Filter had shown itself to be adequate to work with the sensors embedded in the nanosatellite. Thus allowing the estimate of the angular velocity and the quaternion that represents the attitude. For the controller, the values estimated by the Filter were directly used as a control signal, which has the advantage of dealing with the nonlinearities. Different tests were performed to assess the simulator and evaluate the stability of the navigation and control system. The results have demonstrated that the set up is able to stabilize and correct the attitude of the nanosatellite, even in the face of different perturbations, large angles and high angular velocities. Hence, the simulator generates adequate results, allowing it to be used in future nanosatellite studies.

MEMBROS DA BANCA:
Externo ao Programa - 2757086 - JOILSON BATISTA DE ALMEIDA REGO
Externo à Instituição - JOSE MARCELO LIMA DUARTE - INPE
Presidente - 1577068 - KURIOS IURI PINHEIRO DE MELO QUEIROZ
Interno - 2566657 - SAMAHERNI MORAIS DIAS