[1] Lin Mingyao, Zhang Zhiyao, Lin Keman, Zhou Guqing, et al. Anti-reverse rotation startup method for sensorless brushless DC motor [J]. Journal of Southeast University (English Edition), 2009, 25 (2): 199-202. [doi:10.3969/j.issn.1003-7985.2009.02.012]
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Anti-reverse rotation startup method for sensorless brushless DC motor(
)
无位置传感器无刷直流电机无反转起动方法
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 25
- Issue:
- 2009 2
- Page:
- 199-202
- Research Field:
- Electrical Engineering
- Publishing date:
- 2009-06-30
Info
- Title:
- Anti-reverse rotation startup method for sensorless brushless DC motor
- 无位置传感器无刷直流电机无反转起动方法
- Author(s):
- Lin Mingyao; Zhang Zhiyao; Lin Keman; Zhou Guqing
- School of Electrical Engineering, Southeast University, Nanjing 210096, China
- Keywords:
- brushless DC motor; sensorless control; anti-reverse rotation; back-electromotive force; switch
- PACS:
- TM351
- DOI:
- 10.3969/j.issn.1003-7985.2009.02.012
- Abstract:
- In order to start up the brushless DC motor(BLDCM)without reverse rotation and smoothly switch the running state of the motor, a novel startup and smoothly switching method for a sensorless BLDCM is presented.Based on the saturation effect of the stator iron, six short voltage pulses are applied to determine the initial rotor position and the rotor can be found within 60°.After that, a series of short and long voltage pulses are used to accelerate the motor and the variation of the response current is utilized to detect the rotor position dynamically.When the motor reaches a certain speed at which the back-electromotive force(EMF)method can be applied, all the power devices are turned off and the running state of the motor is smoothly switched at the moment determined by the relationship between the terminal voltage waveform and the commutation phases.The experimental results verify the feasibility and validity of the proposed method.
- 为了实现无位置传感器无刷直流电机的无反转起动及平滑切换, 提出了一种新的无位置传感器无刷直流电机起动及切换方法.该方法依据电机定子铁芯饱和效应, 采用6个短时电压脉冲检测转子初始位置, 可将转子定位在60°范围内, 然后采用长短电压脉冲相结合的方式加速电机同时利用电流响应的变化动态检测转子位置, 当转速上升到可以检测到反电势过零点时, 关闭电机驱动电路, 根据端电压波形和导通相之间的对应关系确定切换时刻, 可将电机平滑切换至反电动势换相运行方式.样机试验结果验证了上述方法的可行性和有效性.
References:
[1] Shen Jianxin, Lü Xiaochun, Du Junhong, et al.Analysis of 3-step starting for sensorless BLDC motor[J].Small & Special Electrical Machine, 1998, 28(5):8-11.
[2] Dunfield John C.Position detection for brushless DC motor without hall effect devices using a time differential method:US Patent, 5028852 [P].1991-07-02.
[3] Jang G H, Park J H, Chang J H.Position detection and start-up algorithm of a rotor in a sensorless BLDC motor utilizing inductance variation[J].Electric Power Applications, 2002, 149(2):137-142.
[4] Lee Wook-Jin, Sul Seung-Ki.A new starting method of BLDC motors without position sensor[J].IEEE Transactions on Industry Applications, 2006, 42(6):1532-1538.
[5] Schmidt P B, Gasperi M L, Ray G, et al.Initial rotor angle detection of a non-salient pole permanent magnet synchronous machine[C]//Conference Record—IAS Annual Meeting(IEEE Industry Applications Society).New Orleans, LA, USA, 1997, 1:459-463.
[6] Chang Yen-Chuan, Tzou Ying-Yu.A new sensorless starting method for brushless DC motors without reversing rotation[C]//IEEE 38th Annual Power Electronics Specialists Conference.Orlando, FL, USA, 2007:619-624.
Memo
- Memo:
-
Biography: Lin Mingyao(1959—), male, doctor, professor, mylin@seu.edu.cn.
Citation: Lin Mingyao, Zhang Zhiyao, Lin Keman, et al.Anti-reverse rotation startup method for sensorless brushless DC motor[J].Journal of Southeast University(English Edition), 2009, 25(2):199-202.