BETTER CONTROL: Vector drive technology provides more precise control of a standard
AC induction motor's output.
The market of the advanced water supply systems based on the pumps with the
AC induction motor drives controlled by the frequency converter increases rapidly nowadays.
Transients of
AC induction motor, speed (a), stator current (a) and rotor slip (b) at nominal load and 1200 rpm speed, motor is controlled by scalar method
The most common technique for driving such fans has been a standard
AC induction motor, connected to the fan via a driveshaft and disc coupling arrangement into a right-angle gearbox, which reduces the motor's speed to the range required for fan circulation.
Its standard LV
AC induction motor portfolio consists of three ranges: Process performance motors, which meet the highest reliability and efficiency requirements; Industrial performance motors, designed to provide flexibility and efficiency to project OEM customers: and General performance motors, which offer easy availability and overall simplicity to volume customers and serial OEMs.
It is propelled entirely on electricity by a 200 kilowatt advanced
AC induction motor and lithium-ion batteries.
A typical power-torque-rpm relationship for a spindle driven by an
AC induction motor and vector drive is shown below.
'An
AC induction motor is one of the simplest and least expensive motor technologies and hence the most applied,' explains Tim Albers, director of marketing for the industrial motors division of Emerson Motor Company (888-637-7333, www.emersonmotors.com ).'
The
ac induction motor and the electronic controls regulate the flow of electricity to and from the batteries at various voltages, and power to propel the vehicle.
MultiMix's motor is an electric three-phase
AC induction motor running from the variable frequency supplied by its inverter which is fed from a common household single-phase outlet.
These include an
AC induction motor, a brushless PM synchronous motor, a switched reluctance (SR) motor and a synchronous reluctance motor.