0. WQuattro Motors WEG Line-Start Permanent Magnet Motors

1. Overview Hybrid motor: induction + permanent magnet + reluctance
Aluminium cage
Flux barrier
Permanent magnet
Example picture, not actual geometry

2. Developed lines of product
IEC 380V, 60Hz:
Frames 80 to 132S
4 poles: 0.75 to 11kW
6 poles : 0.37 to 7.5kW
IEC 525V, 50Hz:
Frames 80 to 132S
4 poles : 0.55 to 7.5kW
6 poles : 0.37 to 5.5kW
NEMA 460V, 60Hz:
Frames 143 to 213
4 poles : 0.75 to 7.5kW
6 poles : 0.75 to 3.7kW
IEC 400V, 50Hz:
Frames 80 to 132S
4 poles : 0.55 to 7.5kW
6 poles : 0.37 to 5.5kW

3. Characteristics
Higher efficiency in the same frame size
Three-phase distributed winding in stator (identical to conventional induction motors).
Rotor with aluminum cage and internal high-energy permanent magnets.
Starts and accelerates directly connected to the mains, as an induction motor.
Operates at synchronous speed (invariant with load).
Same frame size of induction motor, for same power.
WQuattro
W22

4. Advantages Synchronous operation  no I²R losses in the aluminum cage.
Higher efficiency compared to Premium Efficiency induction motors  high energy savings.
Low bearing temperature  longer life and less maintenance.
No sensors  high reliability.
Interchangeability with existing installations.
No need for special protection relays.
Multi-motor operation  several motors in synchronism fed by the same inverter.

5. Limitations
Limited synchronization capability with inertia  not suitable for all applications.
Care must be taken in the assembly and disassembly of the motor, due to magnets in the rotor, and special tools may be necessary for the IEC frame 132.

6. Development tools (software)
SPEED software package (analytical and numerical analysis). WEG is member of the SPEED Consortium – SPEED Lab – Glasgow University.

7. Development tools (software)
FLUX2D software (numerical analysis) from CEDRAT – France.

8. PM x LSPM PM (inverter-fed PM motor): Have no cage in the rotor;
Needs a FOC (field oriented control) inverter and information about the rotor position at any instant (either from an encoder or a sensorless algorithm);
Cannot be directly connected to the mains, even for non-variable speed applications;
LSPM (line-start PM motor):
Have a cage in the rotor;
Can be directly connected to the mains;
Do not need an inverter to run in a non-variable speed application;
For variable-speed applications, can be driven by an inverter with scalar control algorithm.

9. WQUATTRO MOTORS IEC 400V 50Hz 4 PolesHP kW
Full Load Speed (RPM)
IEC frame
Full Load Current In (A)
Locked Rotor Current Il/In
Full Load Torque Tn (Nm)
Locked Rotor Torque Tl/Tn
Pull-out Torque Tp/Tn
Efficiency
Power Factor
Moment of Inertia (kg.m²)
Maximum Moment of Inertia of Load (kg.m²)
Approx. Weight (kg) η%
Cosφ
% of full load 50 75
100
0.75
0.55
1500 80
1.2
5.89
3.5
2.31
2.0
81.7 84
84.2
0.57
0.71
0.79
0.0759 15 1
1.6
6.08
4.8
2.55 83
86.5
87.5
0.7
0.8
0.0886 16
1.5
1.1
90L
2.4
6.98
7.0
3.24 82 86
87.4
0.68
0.76
0.1748 23 2
3.3
6.71
9.6
3.41
83.5
86.8
88.1
0.53
0.66
0.74
0.1819 25 3
2.2
100L
4.0
7.33
14.0
3.94 89
90.2
0.67
0.87
0.2809 32 4
5.8
6.57
19.1
3.82
89.5
90.4
0.6
0.82
0.2914 39
5.5
112M
7.2
6.31
25.5
3.32 91
91.7
0.81
0.88
0.4096 41
7.5
132S
9.2
8.18
35.0
4.17 92
92.5
0.93
0.0418
1.4613 61 10
12.6
7.82
47.8
4.22
90.5
92.2
93.0
0.77
0.0496
1.7354 67

10. WQUATTRO MOTORS IEC 400V 50Hz 4 Poles
Efficiency level IE4

11. WQUATTRO MOTORS IEC 400V 50Hz 6 PolesHP kW
Full Load Speed (RPM)
IEC frame
Full Load Current In (A)
Locked Rotor Current Il/In
Full Load Torque Tn (Nm)
Locked Rotor Torque Tl/Tn
Pull-out Torque Tp/Tn
Efficiency
Power Factor
Moment of Inertia (kg.m²)
Maximum Moment of Inertia of Load (kg.m²)
Approx. Weight (kg) η%
Cosφ
% of full load 50 75
100
0.50
0.37
1000 80
1.0
4.62
3.5
3.05
2.00
66.6
75.5
79.6
0.53
0.66
0.0825 15
0.75
0.55
1.5
4.31
5.3
2.91
68.1
76.3
0.38
0.54
0.0912 16
1.00
90S
1.8
5.27
7.2
2.70
81.1
83.4
0.41
0.59
0.7
0.1590 22
1.50
1.1
90L
2.7
5.25
10.5
3.04
75.4
81.6
84.1
0.4
0.57
0.1803 24
100L
3.3
5.12
14.3
3.98
81.3
85.7
87.6
0.49
0.63
0.74
0.2542 30
3.00
2.2
112M
4.6
5.00
21.0
2.43
83.7
86.5
87.1
0.58
0.72
0.8
0.3673 39
4.00
3.0
132S
5.8
5.75
28.7
4.01
86.6
89.6
90.7
0.73
0.82
1.1528 55
5.50
4.0
132M
7.8
38.2
87.4
90.1 91
0.81
0.039
1.3656 59
7.50
5.5
132M/L
11.2
4.96
52.5
0.56
0.78
0.0436
1.5253 63

12. WQUATTRO MOTORS IEC 400V 50Hz 6 Poles
Efficiency level IE4

13. Thank you! Sebastião L. Nau slnau@weg.net