采煤机感应电机的最优控制研究  

Research on the Optimal Control of Induction Motors for Coal Mining Machines

作　　者：范江虎 Fan Jianghu(Taiyuan Coal Gasification(Group)Company Limited,Taiyuan Shanxi 030000)

机构地区：[1]太原煤炭气化(集团)有限责任公司,山西太原030000

出　　处：《机械管理开发》2022年第10期91-93,共3页Mechanical Management and Development

摘　　要：提出了一种基于弱磁场算法的双馈感应电机优化控制方法。该技术保证了在感应电机加减速运行模式下,转矩-转速运行区域几乎翻倍。该控制方案应用于采煤矿机,其中定子和转子电路连接到电压源逆变器上,由空间矢量脉冲宽度调制算法控制。在此基础上,对定子与转子侧有功功率分布规律进行了深入研究。该定律引入了转子和定子脉动之间的关系,导致了DFIM转速新的变化情况。速度测量以及对感应电机参数变化的灵敏度仍然是超速区域的主要限制。通过计算机数值仿真验证了所提出的优化控制算法的性能,并验证了其在宽转速范围内实现最大转矩的有效性。A doubly-fed induction motor optimal control method based on a weak magnetic field algorithm is proposed. The technique ensures that the torque-speed operating region is almost doubled in the acceleration and deceleration operation mode of the induction motor. The control scheme is applied to a coal mining machine in which the stator and rotor circuits are connected to a voltage-source inverter and controlled by a space vector pulse width modulation algorithm. On this basis, the stator and rotor side active power distribution law is investigated in depth. The law introduces a relationship between rotor and stator pulsations, leading to a new variation of the DFIM speed profile. Speed measurement and sensitivity to changes in induction motor parameters remain the main limitation in the overspeed region. The performance of the proposed optimised control algorithm is verified by computer numerical simulations and its effectiveness in achieving maximum torque over a wide speed range is verified.

关 键 词：采煤矿机 弱磁场算法 感应电机 最优转矩 优化控制算法 

分 类 号：TD63[矿业工程—矿山机电]