Control Algorithm of Two-Phase Hybrid Stepper Motor Based on Three-State Hysteresis
Science Discovery
Volume 6, Issue 5, October 2018, Pages: 399-405
Received: Oct. 17, 2018; Published: Oct. 18, 2018
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Authors
Xiao Shenping, College of Automation, Nanjing University of Aeronautics & Astronautics, Nanjing, China
Wang Xiaolin, College of Automation, Nanjing University of Aeronautics & Astronautics, Nanjing, China
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Abstract
When the drive system of two-phase hybrid stepper motor adopts the traditional hysteresis loop control mode, it has good dynamic response performance, but also has some disadvantages such as big current ripple and big noise. In view of the above problems, the given current within one period of the winding is divided into ascending area, flat area and descending area, and the different demands for the rate of change of current in each area are analyzed in this paper. Compared with the traditional hysteresis loop, the three-state hysteresis loop has more switch combinations, which can meet the requirement of switching multiple current change rate in the driving system of two-phase hybrid stepping motor. This control algorithm based on three-state hysteresis loop presented in this paper can not only guarantee the dynamic response performance, but also greatly reduce the current ripple. The relationship between current ripple and terminal voltage, inductance and control frequency is derived in this paper. The hardware platform was set up with Cyclone IV FPGA of Altera company as the core processing chip, and the two-phase hybrid stepping motor of Oriental motor company model PK299DB was taken as the control object for experimental verification. Simulation and experiment verify the effectiveness of the algorithm.
Keywords
Two-phase Hybrid Stepping Motor, Current Ripple, Three-state Hysteresis Loop
To cite this article
Xiao Shenping, Wang Xiaolin, Control Algorithm of Two-Phase Hybrid Stepper Motor Based on Three-State Hysteresis, Science Discovery. Vol. 6, No. 5, 2018, pp. 399-405. doi: 10.11648/j.sd.20180605.24
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