Motor speed control device is set to transform the shift and direction of the electric car, and its role is to control the motor voltage or current, complete control of the motor drive torque and rotational direction.
Before electric garbage tricycle three wheel motorcycle cars on DC motor speed using the series resistance or change the motor field coil turns to achieve. Because there is a level of speed and will produce additional energy consumption or use of a motor complex structure, it has been rarely used today. Today the electric vehicle broader thyristor chopper controlled by changing the uniform of the motor terminal voltage, electric garbage tricycle three wheel motorcycle current control to achieve variable speed motor. In the continuous development of power electronics technology, which is gradually replaced by other power transistor (the GTO, MOSFET, BTR and IGBT etc) chopper speeder is. From the technology point of view, along with the application of new drive motor speed control conversion of electric vehicles for the application to DC inverter technology will become an inevitable trend.
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显示标签为“Electric motorcycles and scooters”的博文。显示所有博文
显示标签为“Electric motorcycles and scooters”的博文。显示所有博文
2015年7月28日星期二
2015年7月22日星期三
Motorcycle motor works
Motorcycle motor works
Motor rotation principle basis for Fleming left-hand rule, when dream 125 motorcycle a wire is placed in a magnetic field, if the current through the wire, the wire will cut the wires to generate magnetic field lines move. Current into the coil generates a magnetic field by the magnetic effect of current, so that the electromagnet in the stationary magnets continuously rotating means, electrical energy can be converted into mechanical energy. Principle of the magnetic field by a permanent magnet or another set of coils produced interact to generate power DC motor is not moving the stator,motorcycle the rotor in the direction of the force generated by the interaction of the movement. AC motor is a stator winding through the AC coils generate a rotating magnetic field, rotating magnetic field to attract the rotor together as a basic construction of a rotary movement of the DC motor including the "armature", "field magnet," "collector ring", "brush."
Armature: You can rotate around the axis of soft iron multi-turn coil winding.Electric motorcycles and scooters, Field magnet: generating a strong magnetic field of the permanent magnet or an electromagnet. Collector ring: a collector coil about two to two semicircular termination of the ring, with the coil rotation for changing the current direction of change to implement. Every half a rotation (180 degrees), the current direction on the coil to change again. Brush: usually made of carbon, collector ring brush contacts a fixed position for connection to the power supply.
Motor rotation principle basis for Fleming left-hand rule, when dream 125 motorcycle a wire is placed in a magnetic field, if the current through the wire, the wire will cut the wires to generate magnetic field lines move. Current into the coil generates a magnetic field by the magnetic effect of current, so that the electromagnet in the stationary magnets continuously rotating means, electrical energy can be converted into mechanical energy. Principle of the magnetic field by a permanent magnet or another set of coils produced interact to generate power DC motor is not moving the stator,motorcycle the rotor in the direction of the force generated by the interaction of the movement. AC motor is a stator winding through the AC coils generate a rotating magnetic field, rotating magnetic field to attract the rotor together as a basic construction of a rotary movement of the DC motor including the "armature", "field magnet," "collector ring", "brush."
Armature: You can rotate around the axis of soft iron multi-turn coil winding.Electric motorcycles and scooters, Field magnet: generating a strong magnetic field of the permanent magnet or an electromagnet. Collector ring: a collector coil about two to two semicircular termination of the ring, with the coil rotation for changing the current direction of change to implement. Every half a rotation (180 degrees), the current direction on the coil to change again. Brush: usually made of carbon, collector ring brush contacts a fixed position for connection to the power supply.
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