Power Balance System for Dual-SRM Driven Shearers
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    Abstract:

    To solve the unbalanced power output problem of dual-SRM synchronous driven shears, a power balance control system has been designed based on current cross-coupling algorithm and speed setting regulation control. The control system model has been established by using MATLAB/SIMULINK and simulation experiments have been accomplished. When a disturbance (its magnitude is 10% of the rated load) is applied on the drive-motor, compared with current system, the torque output difference of dual-SRM controlled by the designed system has been lowered by 7%, the maximum decrease of synchronous speed has been reduced by 3.5% and the transient time has been decreased by 1.5s. The results show that the designed power balance control system has improved both the synchronous accuracy of dual-SRM and the anti-disturbance capability of entire speed regulation system.

    Reference
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李晓豁,张飞虎,付伟丽,曹江卫.双SRM 牵引采煤机功率平衡系统.计算机系统应用,2011,20(11):72-75

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History
  • Received:March 16,2011
  • Revised:April 12,2011
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