The invention discloses a walking driving system using a variable-frequency pole-changing asynchronous motor and walking equipment using the system. According to the invention, a new invention patent is introduced into optimization of a power configuration scheme of a new energy vehicle, connection between a motor terminal and an external power supply is not changed, only inverter control logic is changed, and all phases of an external multi-phase alternating current power supply are matched again so as to realize pole changing of the motor. In order to improve a four-wheel drive scheme that an asynchronous motor and a permanent magnet synchronous motor are coordinated to exert advantages, the invention further discloses a method: during starting or climbing, the asynchronous motor is used for changing poles, so that the power configuration of the motor can be reduced, and meanwhile, walking equipment can obtain larger thrust; when replacing a synchronous motor to work in a high-speed and low-load scene, compared with a non-pole-changing asynchronous motor scheme, more energy is saved, and the running speed of walking equipment can be higher. A single pole-changing asynchronous motor serves as a two-drive or single-wheel drive power scheme, and the power scheme has the similar effects and is generally possibly superior to a permanent magnet synchronous motor drive scheme.
本发明公开了一种利用变频变极异步电机的行走驱动系统及使用该系统的行走设备。本发明在新能源车动力配置方案优化中引入新发明专利:可以不改变电机接线端与外接电源的连接,仅改变逆变器控制逻辑,使外接多相交流电源的各相位重新配合而实现电机的变极。为改进异步电机与永磁同步电机协调发挥优势的四驱方案,本发明公开了进一步的方法:在起步或爬坡时,用异步电机变极,能减少电机功率配置,同时使行走设备获得更大推力;在高速低负荷场景替代同步电机工作时,比不变极异步电机方案更节能,并可使行走设备的行驶速度更高。单个变极异步电机作为二驱、或单轮驱动的动力方案,有上述类同效果,总体可能优于永磁同步电机驱动方案。
Walking driving system using variable-frequency pole-changing asynchronous motor and walking equipment using system
一种利用变频变极异步电机的行走驱动系统及使用该系统的行走设备
2024-08-23
Patent
Electronic Resource
Chinese
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