AC frequency conversion motor

Introduction
DM series of electric vehicles special motor with DM-phase motor controller supporting low-voltage AC frequency conversion motor. High-density, high efficiency, wide speed range of the vehicle traction motor and its control system is not only the heart of electric vehicles. Currently almost all of the vehicles traction motor are DC motors, it is because the DC traction motor has a starting traction, and the control system, the advantages of relatively simple. The disadvantage of DC motor mechanical commutator, running under heavy load at high speed when the commutator surface will produce sparks, the motor operating speed can not be too high. DC motor commutator need maintenance, are not suitable for high-speed operation, AC induction motor with the original DC traction motor system, compared with an obvious advantage. The outstanding advantage is small size, light weight, high efficiency, basic maintenance-free, speed wide range of high speed limits. Vector control induction motor speed control technology is already very mature, is the electric vehicle drive system of the mainstream products (especially in the United States).
DM series of special inverter motor using an ordinary induction motors with different special electromagnetic structure optimization design of the motor torque, power, efficiency within a wide speed range optimal. This series motors have other similar low-voltage when the motor does not have a high efficiency, peak power of big, strong overload capacity, stable performance, reliable, compact structure, small lightweight, maintenance-free electric drive motor vehicles of the performance characteristics, DM Series Low AC frequency conversion motor constant torque below base speed operation of electric vehicles to meet the quick start, acceleration, climbing and frequent starting requirements, constant power above base speed operation, high-speed operation the motor torque when you get older, so that electric vehicles have a better high-speed performance. Electric vehicles to meet the operational requirements of various working conditions. At the same time in the downhill, high-speed taxiing and braking feedback as a generator to charge the battery to provide energy and improve endurance mileage of vehicles. Motor and controller system is mainly used for small electric vehicles, electric golf cart, electric sightseeing tour bus drivers, etc..
Apply
l of pure electric and hybrid electric vehicles (micro-cars, small cars, buses, etc.) AC drive system.
l Electric tricycle AC drive system.
l electric golf cart, sightseeing car AC drive systems.
l electric forklift trucks and other electric vehicles from AC drive systems.
Features
l high-torque (overload strong, especially in the large low speed electric vehicles to meet the load better climbing and acceleration performance).
l wide speed range (higher than the DC motor operating speed and more speed electric vehicles meet the performance requirements).
l high efficiency, high density (compared with the DC motors are smaller, lighter, more efficient).
l totally enclosed aluminum alloy enclosure (improve the thermal performance and protection level).
l Compact, small light (electric vehicles on the installation space to meet the stringent requirements).
l Maintenance-free, long life (basic can be achieved with the vehicle service life of sync).