Adaptive full-order observer analysis and design for full-range sensorless interior permanent magnet synchronous motor drives
Fecha
2021-10-22Primeiro membro da banca
Salton, Aurelio Tergolina
Segundo membro da banca
Câmara, Helder Tavares
Terceiro membro da banca
Pinheiro, Humberto
Quarto membro da banca
Bellinaso, Lucas Vizzotto
Metadatos
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This Thesis presents contributions to the study, development, analysis and design
of adaptive observers applied to the estimation of rotor position and speed of interior
permanent magnet synchronous motors (IPMSM). The position estimation techniques
for the IPMSM are divided in low and high speed methods. First, the adaptive fullorder
observer analysed and designed for high speed sensorless control. A cascade design
method is presented for high performance estimation and robustness improvement under
speed estimation error. An analysis of parameter variation effects on position and
speed estimation is presented. Then, the adaptive full-order observer is modified for fullrange
IPMSM sensorless control. A high-frequency injection technique is used in order to
guarantee position observability. The cascade design approach is adopted for the adaptive
observer gains design. Experimental results are presented in order to validate the
proposed adaptive observer design method.
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