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Adaptive Backstepping Based MTPA Sensorless Control of PM-Assisted SynRM with Fully Uncertain Parameters

Author

Listed:
  • Yang Yu
  • Da Chang
  • Xiaoming Zheng
  • Zengqiang Mi
  • Xiaolong Li
  • Chenjun Sun

Abstract

A nonlinear and robust adaptive backstepping based maximum torque per ampere speed sensorless control scheme with fully uncertain parameters is proposed for a permanent magnet-assisted synchronous reluctance motor. In the design of the controller, the relation to - -axis currents constrained by maximum torque per ampere control is firstly derived. Then, a fully adaptive backstepping control method is employed to design control scenario and the stability of the proposed control scenario is proven through a proper Lyapunov function candidate. The derived controller guarantees tracking the reference signals of change asymptotically and has good robustness against the uncertainties of motor parameters and the perturbation of load torque. Moreover, in allusion to the strong nonlinearity of permanent magnet-assisted synchronous reluctance motor, an active flux based improved reduced-order Luenberger speed observer is presented to estimate the speed. Digital simulations testify the feasibility and applicability of the presented control scheme.

Suggested Citation

  • Yang Yu & Da Chang & Xiaoming Zheng & Zengqiang Mi & Xiaolong Li & Chenjun Sun, 2018. "Adaptive Backstepping Based MTPA Sensorless Control of PM-Assisted SynRM with Fully Uncertain Parameters," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-14, January.
    • Handle: RePEc:hin:jnlmpe:8405847
    DOI: 10.1155/2018/8405847
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