• Title/Summary/Keyword: LQ Feedback Controller

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A High-Performance Motion Control System of Reluctance Synchronous Motor with Direct Torque Control (직접토크제어에 의한 리럭턴스 동기전동기의 고성능 위치제어 시스템)

  • Kim, Min-Hoe;Kim, Nam-Hun;Choe, Gyeong-Ho
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.51 no.3
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    • pp.150-157
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    • 2002
  • This paper presents preliminarily an implementation of digital high-performance motion control system of Reluctance Synchronous Motor (RSM) drives with direct torque control (DTC). The system consist of stator flux observer, torque estimator, two hysteresis band controllers, an optimal switching look-up table, IGBT voltage source inverter, and TMS320F240 DSP controller made by Texas Instruments. The stator fluff observer is based on the combined voltage and current model with stator flux feedback adaptive control, and the input of the observer are the stator voltage and current of motor terminal for wide speed range. The rotor position and speed sensor used 6000 pulse/rev encoder. In order to prove rightness of the suggested control algorithm, we have some simulation and actual experimental system at $\pm$20 and $\pm$2000 rpm. The developed digitally high-performance motion control system+ are shown a good response characteristic of control results and high performance features using 1.0kW RSM which has 2.57 Ld/Lq salient ratio.