Development of a Resolver-to-Digital Converter Based on Second-Order Difference Generalized Predictive Control

High-performance motor drives that operate in harsh conditions require an accurate and robust angular position measurement to correctly estimate the speed reduce torque ripple produced by estimation error. For reason, a resolver is used as sensor due its robustness. A resolver-to-digital converter (RDC) observer get from signals. Most RDCs are based on angle tracking observers (ATOs). On other hand, generalized predictive control (GPC) has become powerful tool developing controllers for industrial applications. However, no GPC-based RDC with zero steady-state error during constant operation been proposed. This paper proposes second-order difference GPC (SOD-GPC). In SOD-GPC, operator applied design model two embedded integrators. Thus, SOD-GPC type-II ATO whose tends operation. Simulation experimental results prove proposed system better performance than literature approaches.