Lenze 8200 Vector Inverter E82EV152 2B
Lenze 8200 Vector E82EV152 2B Inverter :
The Lenze 8200 Vector E82EV152 2B Inverter is part of the Lenze 8200 range of variable speed drives. As a 1.5 kW, 7.0 A, 400/500V AC drive, the Lenze 8200 Vector E82EV152 4C200 Inverter is suitable for a wide variety of applications.
Specification :
- Inverter : 8200 vector
- Type: E82EV152 2B
- ID no: 00450762
- Prod no: 45451508
- Ser no: 0140
- Input : 3/PEAC 0-230/240V 15.0 A 9.1A 50/60Hz
- Output: 3/Pe Ac 0-230/240V 7.0A 1.5Kw/2.0hp 0-650Hz
Vector control, also called field-oriented control (FOC), is a variable-frequency drive (VFD) control method in which the stator currents of a three-phase AC electric motor are identified as two orthogonal components that can be visualized with a vector. One component defines the magnetic flux of the motor, the other the torque. The control system of the drive calculates the corresponding current component references from the flux and torque references given by the drive’s speed control. Typically proportional-integral (PI) controllers are used to keep the measured current components at their reference values. The pulse-width modulation of the variable-frequency drive defines the transistor switching according to the stator voltage references that are the output of the PI current controllers.
FOC is used to control AC synchronous and induction motors. It was originally developed for high-performance motor applications that are required to operate smoothly over the full speed range, generate full torque at zero speed, and have high dynamic performance including fast acceleration and deceleration. However, it is becoming increasingly attractive for lower performance applications as well due to FOC’s motor size, cost and power consumption reduction superiority. It is expected that with increasing computational power of the microprocessors it will eventually nearly universally displace single-variable scalar volts-per-Hertz (V/f).
Vector control accordingly generates a three-phase PWM motor voltage output derived from a complex voltage vector to control a complex current vector derived from motor’s three-phase stator current input through projections or rotations back and forth between the three-phase speed and time dependent system and these vectors’ rotating reference-frame two-coordinate time invariant system.