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AN2388 Datasheet(PDF) 31 Page - STMicroelectronics

Part # AN2388
Description  Sensor field oriented control
PDF  54 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2388 Datasheet(HTML) 31 Page - STMicroelectronics

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AN2388
Hardware design
31/54
Figure 28.
Electric motor equivalent circuit (IEEE)
An embedded incremental encoder is also provided with this motor. This is capable of 1000
pulses per revolution and is used in this application to obtain the rotor mechanical position
feedback.
Test
No Load Test
Frequency
50.00
Hz
Voltage
399.90
V
Average current
0.53
A
Input power
0.08
kW
Short Circuit Test (Locked Rotor)
Frequency
50.00
Hz
Voltage
87.30
V
Average current
0.92
A
Input power
0.11
kW
Average resistance of a phase
21.85
Ω
Calculations
No Load Test
Phase voltage
230.882
V
No load impedance
435.627
Ω
No load resistance
71.200
Ω
No load reactance
429.769
Ω
Short Circuit Test (Locked Rotor)
Locked rotor resistance
43.321
Ω
Rotor resistance related to the stator
21.671
Ω
Phase voltage
50.40
V
Locked rotor impedance
54.786
Ω
Locked rotor reactance
33.538
Ω
Rotor reactance related to the stator
33.538
Ω
Stator reactance
16.769
Ω
Magnetizing reactance
413.000
Ω
Report
V1
I1
R1
X1
IΦ
I’2
X’2
Xm
R’2
s
E1
R1
21.6500
Ω
X1
16.7688
Ω
Xm
413.0004
Ω
X’2
16.7688
Ω
R’2
21.6767
Ω



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