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中南大学学报(自然科学版)

Journal of Central South University

第45卷    第10期    总第242期    2014年10月

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文章编号:1672-7207(2014)10-3694-06
轻轨车辆电机直驱独立车轮电气耦合技术
孙效杰,陆正刚

(同济大学 铁道与城市轨道交通研究院,上海,201804)

摘 要: 为恢复独立车轮轻轨车辆的自导向能力,应用定子电路中串入电容的电轴技术到驱动独立车轮的牵引电机之间,形成独立车轮之间的电气耦合同步。研究结果表明:耦合性能对电机转速灵敏度高,降低电机转速,耦合能力增加;转子接入的电阻与电容较小时,对耦合性能影响也较小;当电阻与电容较大时,参数灵敏度高,增加转子接入阻抗,耦合能力下降。理论分析后确定电气耦合轮对是根据左右车轮相对转角自动产生耦合转矩的技术。建立轻轨车辆横向动力学模型,电气耦合轮对与经典的弹性阻尼耦合轮对仿真结果表明:独立车轮构成电气耦合轮对后,恢复了自导向能力;二者均具有曲线通过能力;电机为产生耦合力矩而造成的最大功耗仅几百瓦。

 

关键词: 轻轨车辆;电轴技术;建模仿真;电气耦合技术;导向

Electrical coupled method of independently rotating wheels with motor directly driving in light railway vehicles (LRV)
SUN Xiaojie, LU Zhenggang

Institute of Railway and Urban Mass Transit, Tongji University, Shanghai 201804, China

Abstract:Electromagnetic working shaft (EMWS) with insertion capacitances in the rotor coils was applied in traction motors driving independently rotating wheel (IRW) of light railway vehicles (LRV) to restore the self-steering performance with electrical coupled synchronous method. Research on parameter sensitivity of coupled capacity was carried out in theoretical methods. The results show that motor rotating speed is a high sensitive parameter for coupling capacity. Reducing the rotating speed of motor would increase the coupling capacity. Resistance and capacitance in the rotor coils have small effect on the coupling ability while they are small. But for high resistance and capacitance with high parameter sensitivity, increasing the impedance in the rotor coils would make the coupling ability down. The principle of electrical coupled wheelsets (ECW) was that coupling torque would automatically emerge according to the rotating angular difference between two wheels. Lateral dynamic models of LRV with ECW or elasto-damper coupled wheelsets (EDCW) were established to simulate the steering behavior. IRW transforms into electrical coupled wheelsets with self-steering performance. Both of them have curving ability. It is a low-power cost in electrical coupler system as the maximum power consumption just hundreds of Watt to produce coupled torque.

 

Key words: light railway vehicles; electromagnetic working shaft; modeling simulation; electrical coupled method; steering

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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