Banca de DEFESA: LEONARDO TELINO DE MENESES
Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.DISCENTE : LEONARDO TELINO DE MENESES
DATA : 09/06/2017
HORA: 09:00
LOCAL: Auditório do LAUT
TÍTULO:
Accuracy Errors Reduction in Current transformers for Electric Energy Measurement
PALAVRAS-CHAVES:
Current Transformer. Accuracy Errors. Control Circuits. Operational Amplifiers. Algoritms. Compensation
PÁGINAS: 132
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Eletrônica Industrial, Sistemas e Controles Eletrônicos
ESPECIALIDADE: Automação Eletrônica de Processos Elétricos e Industriais
RESUMO:
This research directs efforts and proposes a solution to mitigate errors of accuracy in specific current transformers for electric energy measurement. Two solutions are developed: the first is a real-time control system that inhibits the supply of energy delivered to the CT – current transformer by its magnetic circuit and which withdraws this energy from the control circuit and no longer from the primary current being measured, inhibiting the production of the excitation current by the energy circulating in the primary of the current transformer; the second is the development of an error compensation algorithm based on the knowledge of the physical, electrical and magnetic characteristics of the current transformer and the mass memory of the currents measured in the CT secondary, identifying the excitation current demanded in each integralization interval, compensating this current and recalculating the measured energy. Laboratory tests demonstrate the validity of the first method and algorithm applications in mass memory of CTs installed in the field and measuring electrical energy demanded by consumer unit demonstrate the validity of the second method. The theory and the practice are discussed and complement each other in the analytical, experimental and operational approaches of the field carried out throughout the research.
MEMBROS DA BANCA:
Presidente - 350693 - ANDRE LAURINDO MAITELLI
Interno - 1149567 - ANDRES ORTIZ SALAZAR
Interno - 1451883 - FABIO MENEGHETTI UGULINO DE ARAUJO
Externo à Instituição - JOSE BEZERRA DE MENEZES FILHO - IFPB
Externo à Instituição - MANOEL ALVES FILHO - IFPB