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New Products &
Projects:
Transformation
of a Vehicle to Hybrid Electric
[Retrofit
kit]
Critical issues /
challenges in Transmission Shaft based Motor for Hybrid Vehicle
1.
Motor on transmission shaft/wheel run in wide speed range
2.
Motor on transmission shaft has critical dimensions (small
width and height)
3.
Running a motor at 8000 rpm above base speed of 1500 rpm has
many issues
Ø
AC vector control with field weakening is required to run at
over speed
Ø
Running as generator is difficult at high speed
Ø
Zero Vector Breaking technique has many risks of too much
retardation which increases chances of accident
Ø
Other techniques like tap field requires many high power
relays & put the stator winding at risk of insulation failure due to
high voltage
About motor design [Covered
by patent application]
v
Motor contains 4 sets of stators – rotors in 2 bodies
v
Both motor bodies are mounted on common transmission shaft
v
All stators are interconnected in series in a particular
sequence
Invented technique
v
One Motor Body can rotate with respect to other body by a
small servo motor, thus can reduce back EMF at high speed
v
This allows motor operation in wide speed range
BLDC motor (12KW) with Integrated Control
(For Aerospace applications)
·
Power
12KW, Torque 18 N-m
·
Mass
20.5Kg, 2.5 Kg coolant inside
·
Operative
on 130 to 160V DC
·
Duration
16 minutes in vacuum
·
Designed
for Reusable launch vehicle to run hydraulic pump with load fluctuation
of 0 to max, at 7 Hz response
·
First
prototype delivered to Indian Space Research Organisation in Feb. 2008
High
Efficiency Washing Machine Solution
Capacity 500W
The BLDC Motor &
Control solution is designed to cope up with the increasing demands of
Energy Efficient products & aims at reducing solution cost by nearly
20%.
A new patented technology
is used to dynamically change motor parameters, thus reducing size &
cost. It will be in production by December 2010.
Two
separate solutions for small & large sized Washing Machines with
scope for End-user customization.
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BLDC
Motors & Controls
( for
Aerospace applications)
 more information
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The ADMC-326-SKD-1F Processor
is an excellent choice for various Motor Control and Non-Motor
applications. Based upon Analog Devices Inc.' ADMC326 Motor Control
Processor, SKD-1F launched by SK Dynamics P. Ltd.-Roorkee (India)
has Embedded Motor Control Drivers free-of-cost. Having 2 US
patents on Motor Control to our credit, SKD provides these drivers to
run motors such as PMSM, BLDC, AC Induction, Stepper and Switched
Reluctance.
more
information
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