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http://dx.doi.org/10.6113/JPE.2016.16.4.1367

An Enhanced Finite-Settling-Step Direct Torque and Flux Control (FSS-DTFC) for IPMSM Drives  

Kim, Sehwan (Power Conversion Lab., Dept. of Electrical Eng., Yeungnam University)
Seok, Jul-Ki (Power Conversion Lab., Dept. of Electrical Eng., Yeungnam University)
Publication Information
Journal of Power Electronics / v.16, no.4, 2016 , pp. 1367-1374 More about this Journal
Abstract
This paper presents a discrete-time version of voltage and current limited operation using an enhanced direct torque and flux control method for interior permanent magnet synchronous motor (IPMSM) drives. A command voltage vector for airgap torque and stator flux regulation can be uniquely determined by the finite-settling-step direct torque and flux control (FSS-DTFC) algorithm under physical constraints. The proposed command voltage vector trajectories can be developed to achieve the maximum inverter voltage utilization for the discrete-time current limit (DTCL)-based FSS-DTFC. The algorithm can produce adequate results over a number of the potential secondary upsets found in the steady-state current limit (SSCL)-based DTFC. The fast changes in the torque and stator flux linkage improve the dynamic responses significantly over a wide constant-power operating region. The control strategy was evaluated on a 900W IPMSM in both simulations and experiments.
Keywords
Discrete-time current limit (DTCL); Finite-settling-step direct torque and flux control (FSS-DTFC); Maximum inverter voltage utilization; Steady-state current limit (SSCL);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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