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2. Variable-frequency drive - Wikipedia

   en.wikipedia.org/wiki/Variable-frequency_drive

   Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...

3. Vector control (motor) - Wikipedia

   en.wikipedia.org/wiki/Vector_control_(motor)

   In vector control, an AC induction or synchronous motor is controlled under all operating conditions like a separately excited DC motor. [21] That is, the AC motor behaves like a DC motor in which the field flux linkage and armature flux linkage created by the respective field and armature (or torque component) currents are orthogonally aligned such that, when torque is controlled, the field ...

4. Electric motor - Wikipedia

   en.wikipedia.org/wiki/Electric_motor

   So (as an example) a 10 HP motor is most efficient when driving a load that requires 7.5 HP. [104] Efficiency also depends on motor size; larger motors tend to be more efficient. [ 105 ] Some motors can not operate continually for more than a specified period of time (e.g. for more than an hour per run) [ 106 ]

5. Direct torque control - Wikipedia

   en.wikipedia.org/wiki/Direct_torque_control

   ACS600 drives has since been replaced by ACS800 [9] and ACS880 drives. [10] Vas, [11] Tiitinen et al. [12] and Nash [13] provide a good treatment of ACS600 and DTC. DTC has also been applied to three-phase grid side converter control. [14] [15] Grid side converter is identical in structure to the transistor inverter controlling the machine ...

6. Induction motor - Wikipedia

   en.wikipedia.org/wiki/Induction_motor

   Induction motors are most commonly run on single-phase or three-phase power, but two-phase motors exist; in theory, induction motors can have any number of phases. Many single-phase motors having two windings can be viewed as two-phase motors, since a capacitor is used to generate a second power phase 90° from the single-phase supply and feeds ...

7. HPE BladeSystem - Wikipedia

   en.wikipedia.org/wiki/HPE_BladeSystem

   Taking up 6 rack units, the p-Class enclosure can house 16 Half height, 8 Full-height or 2 Quad-wide p blades. There are two interconnect modules on the front allowing for different connectivity options such as Fibre channel. Power is managed by a Powerenclosure; 1u 6x PSU single-phase or 6x PSU three-phase / 48v DC 3u enclosures. [8]