Online Loss-Minimization-Based Adaptive Flux Observer for Direct Torque and Flux Control of PMSM Drive

作者：Uddin M Nasir^*; Zou HonBin^*; Azevedo F^*

来源：IEEE Transactions on Industry Applications, 2016, 52(1): 425-431.

DOI：10.1109/TIA.2015.2470642

• Direct torque and flux control (DTFC)
• dynamic response
• interior permanent-magnet synchronous motor (PMSM)
• loss minimization
• speed control and adaptive flux observer

This paper presents a novel adaptive flux observer based direct torque and flux control (DTFC) of a permanent magnet synchronous motor (PMSM) drive. An online loss minimization algorithm (LMA) is developed to estimate the air-gap flux so that the motor operates at minimum loss condition while taking the general advantages of the DTFC scheme over the conventional vector control scheme. The proposed DTFC-based PMSM drive incorporating theLMA-based flux observer is implemented in real time using the DSP board DS1104 for a laboratory 5-hp motor. The performance of the proposed LMA-based DTFC control of the PMSM drive is tested in both simulation and experiment at different operating conditions.

• 出版日期2016-2