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Influence of Microstepping Signal Shape on Shaft Movement Precision and Torque Variation of the Stepper Motor

Author

Listed:
  • Bogdan Bednarski

    (Faculty of Electrical Engineering, Institute of Control and Industrial Electronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland)

  • Krzysztof Jackiewicz

    (Faculty of Electrical Engineering, Institute of Control and Industrial Electronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland)

  • Andrzej Gałecki

    (Faculty of Electrical Engineering, Institute of Control and Industrial Electronics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland)

Abstract

Stepper motors are widely used in many applications where discrete, precise movement is required. There is a variety of dedicated stepper motor controllers (sometimes referred to as “step sticks”) available on the market. Those controllers provide a number of different motor control schemes that vary by aspects like current control method, reference current shape or maximum resolution increase (microstepping). The two most widely acknowledged signal shapes are sine-cosine microstepping and quadrature microstepping. The choice of the control scheme impacts torque output, torque variation, positioning error and maximum power supply requirements. This paper presents a family of generalised microstepping signal shapes, ranging from sine-cosine microstepping to quadrature microstepping. Derivation of signal shapes as well as their mathematical analyses are provided. Those signals are then implemented on the control board. A series of experiments is performed on a test bench to analyse the influence of different signal shapes on the performance of the motor in both load and no load conditions. The comparison of the new generalized shapes influence on the motor operation to the commonly used sine-cosine and quadrature control is provided.

Suggested Citation

  • Bogdan Bednarski & Krzysztof Jackiewicz & Andrzej Gałecki, 2021. "Influence of Microstepping Signal Shape on Shaft Movement Precision and Torque Variation of the Stepper Motor," Energies, MDPI, vol. 14(19), pages 1-21, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6107-:d:642776
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    References listed on IDEAS

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    1. Chunlei Wang & Dongxing Cao, 2020. "New Sensorless Speed Control of a Hybrid Stepper Motor Based on Fuzzy Sliding Mode Observer," Energies, MDPI, vol. 13(18), pages 1-19, September.
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