Reliable and robust sensored motor control demands accurate and consistent measurement of position and speed of the motor shaft. Resolvers are robust and precise analog position transducers that require a sinusoidal excitation voltage with specific amplitude and frequency. Because of that, it is not usually possible to excite the resolver directly from a microcontroller, often used for motor control applications. This paper presents a new resonant, high-efficiency resolver excitation circuit, which guarantees a high-density layout with minimal component usage. The optimization process of the circuit design is presented. The network is coupled with a novel soft fast-dynamics PLL-type angle tracking observer, to extract angle and speed information. Simulation and experimental results demonstrate that the presented interface is effective, showing less than 2% THD and efficiency increase up to 5× (design-dependent) when compared to a traditional class AB driver.
A High-efficiency Resonant Driver and Soft Decoder Interface with Fast-dynamics PLL-Type Angle and Speed Tracking Observer for Resolvers / Musetti, A.; Panciroli, E.; Lafmejani, H. S.; Soldati, A.. - (2023), pp. 5087-5092. (Intervento presentato al convegno 2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 tenutosi a usa nel 2023) [10.1109/ECCE53617.2023.10362295].
A High-efficiency Resonant Driver and Soft Decoder Interface with Fast-dynamics PLL-Type Angle and Speed Tracking Observer for Resolvers
Musetti A.
;Panciroli E.;Soldati A.
2023-01-01
Abstract
Reliable and robust sensored motor control demands accurate and consistent measurement of position and speed of the motor shaft. Resolvers are robust and precise analog position transducers that require a sinusoidal excitation voltage with specific amplitude and frequency. Because of that, it is not usually possible to excite the resolver directly from a microcontroller, often used for motor control applications. This paper presents a new resonant, high-efficiency resolver excitation circuit, which guarantees a high-density layout with minimal component usage. The optimization process of the circuit design is presented. The network is coupled with a novel soft fast-dynamics PLL-type angle tracking observer, to extract angle and speed information. Simulation and experimental results demonstrate that the presented interface is effective, showing less than 2% THD and efficiency increase up to 5× (design-dependent) when compared to a traditional class AB driver.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.