Compact Intelligent Powerful Electric Drivetrain for...
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CIPED Compact Intelligent Powerful Electric Drivetrain for EVs Switched Reluctance Machine CIPED Compact Intelligent Powerful Electric Drivetrain for EVs Peak torque 106 Nm Continuous torque at low speed 35 Nm Peak power 35 kW Continuous power at max speed 17.5 kW Max speed 7500 rpm Knee point 3150 rpm Working voltage 270-350 V Dimensions Ø310 x 160 mm Overall specifications: The Switched Reluctance Machine (SRM) developed in the CIPED project offers a new set of benefits compared to existing motors. The special thing about the SRM is the lack of permanent magnets and the very simple design, where the “active” parts consist of steel laminations and copper windings on the stator. The result is a simple, cheap and rugged machine. The CIPED motor is based on a state-of-the-art liquid cooled U-core technology that significantly reduces iron core loss and torque ripple and allows for a simple and customizable construction depending on the use case – e.g. automotive, agriculture, energy and industrial applications. In connection with the CIPED motor, a unique power converter module has been developed that allows for an integrated solution where intelligent use of the SRM technology is explored to the fullest, including optimal control in any operating point, a minimum of idling losses and the possibility for regenerative braking. The motor and the converter are completely prepared for four-quadrant operation, allowing them to be used as a generator. Together, these components form a unique system that is tailored to systems working in an active environment. Key benefits of the Switched Reluctance Machine: • High efficiency over a large working area • Robust and fault tolerant • High torque at low speed • Highly customizable – from 5 to 200 kW • No rare earth materials used • Low maintenance costs • Low material and manufacturing costs due to no permanent magnets and a simple rotor construction ePower Technology +45 22 12 33 63 [email protected]
Transcript of Compact Intelligent Powerful Electric Drivetrain for...
CIPED Compact Intelligent Powerful Electric Drivetrain for EVs
Switched Reluctance Machine
CIPED Compact Intelligent Powerful Electric Drivetrain for EVs
Peak torque 106 Nm
Continuous torque at low speed
35 Nm
Peak power 35 kW
Continuous power at max speed
17.5 kW
Max speed 7500 rpm
Knee point 3150 rpm
Working voltage 270-350 V
Dimensions Ø310 x 160 mm
Overall specifications:
The Switched Reluctance Machine (SRM) developed in the CIPED project offers a new set of benefits compared to existing motors. The special thing about the SRM is the lack of permanent magnets and the very simple design, where the “active” parts consist of steel laminations and copper windings on the stator. The result is a simple, cheap and rugged machine.
The CIPED motor is based on a state-of-the-art liquid cooled U-core technology that significantly reduces iron core loss and torque ripple and allows for a simple and customizable construction depending on the use case – e.g. automotive, agriculture, energy and industrial applications.
In connection with the CIPED motor, a unique power converter module has been developed that allows for an integrated solution where intelligent use of the SRM technology is explored to the fullest, including optimal control in any operating point, a minimum of idling losses and the possibility for regenerative braking. The motor and the converter are completely prepared for four-quadrant operation, allowing them to be used as a generator. Together, these components form a unique system that is tailored to systems working in an active environment.
Key benefits of the Switched Reluctance Machine:
• High efficiency over a large working area• Robust and fault tolerant• High torque at low speed• Highly customizable – from 5 to 200 kW• No rare earth materials used• Low maintenance costs• Low material and manufacturing costs due
to no permanent magnets and a simple rotor construction
ePower Technology +45 22 12 33 63 [email protected]
0 1000 2000 3000 4000 5000 6000 7000Speed [rpm]
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ue [N
m]
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Operating limitMeasured points
0 1000 2000 3000 4000 5000 6000 7000Speed [rpm]
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Torq
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m]
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5254
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6466
68
6870
7072
7274
7476
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Effic
ienc
y [%
]
Operating limitMeasured points
CIPED Compact Intelligent Powerful Electric Drivetrain for EVs
1. 91.79
2. 90.24
3. 91.56
4. 93.53
5. 92.74
6. 92.38
7. 93.29
8. 93.17
9. 90.95
10. 90.95
11. 89.73
1. 2471
2. 3985
3. 965
4. 1391
5. 2076
6. 536
7. 873
8. 1335
9. 249
10. 437
11. 718
Simulated total lossMeasured values, total loss [W]
Simulated efficiencyMeasured values, efficiency [%]
In the following figures, simulated maps of motor efficiency and losses are presented, along with a number of points where the measured values from loaded tests are given. A high efficiency is seen in a large part of the operating area. From 1000 rpm and 10 Nm there is a very large area with an efficiency above 90 %. Notice the high efficiency at idling, even at high speeds.
ePower Technology +45 22 12 33 63 [email protected]
