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| 基于瞬态激励的感应电机转子位置检测 | |
| 引用本文： | 陈玉海,刘北英,胡正寰,陈先中.基于瞬态激励的感应电机转子位置检测[J].江苏大学学报(自然科学版),2010,31(2). |
| 作者姓名： | 陈玉海 刘北英 胡正寰 陈先中 |
| 作者单位： | 1. 北京科技大学,机械工程学院,北京,100083;北京中冶设备研究设计总院有限公司,北京,100029 2. 北京科技大学,机械工程学院,北京,100083 3. 北京科技大学,信息工程学院,北京,100083 |
| 基金项目： | 国家“863”计划项目(2006AA04Z177);;国家自然科学基金资助项目(50775011) |
| 摘 要： | 为解决感应电机低速和零速时的转子位置跟踪问题,提出一种电流瞬态响应二次测量结果相叠加获得转子位置的检测技术.利用逆变器产生的脉冲作为激励信号,通过瞬态电流响应得到可反映转子位置信息的寄生效应特征.讨论了逆变器馈电时瞬态激励转子位置检测的数学模型,针对脉宽调制(PWM)恒压源逆变器馈电时存在的死区效应、负面效应等负面非理想特性的影响;通过仿真手段分析了逆变器死区效应对电流瞬态响应的影响,并给出相应补偿策略;采用改进型的双模滤波器,有效地抑制了负面效应引起的共模和差模dv/dt及瞬态电流波形畸变.在3 kW感应电机试验平台上进行了验证,结果表明瞬态电流检测结果具有可反映转子位置信息的寄生效应. |
| 关 键 词： | 感应电机 逆变器 瞬态响应 无源滤波器 位置追踪 |
Rotor position self-sensing in induction motor based on transient excitation |
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| Chen Yuhai,Liu Beiying,Hu Zhenghuan,Chen Xianzhong.Rotor position self-sensing in induction motor based on transient excitation[J].Journal of Jiangsu University:Natural Science Edition,2010,31(2). | |
| Authors: | Chen Yuhai Liu Beiying Hu Zhenghuan Chen Xianzhong |
| Institution: | 1.School of Mechanical Engineering/a>;University of Science and Technology Beijing/a>;Beijing 100083/a>;China/a>;2.Beijing Metallurgical Equipment Research and Design Corporation Ltd of MCC Group/a>;Beijing 100029/a>;3.School of Information Engineering/a>;China |
| Abstract: | To track the rotor position of an induction motor at standstill and higher speeds,an approach by superposing twice subtraction of current transient samples was proposed.Voltage test pulse generated by inverter was injected into the phase windings,and the transient current changes were evaluated to obtain the parasitic effects due to rotor position.The mathematic model for an inverter-fed induction motor excited by transient pulses was discussed.According to the non-ideal behavior of dead-time effect and sid... |
| Keywords: | induction motors inverters transient response passive filters position tracking |
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