Delta MH300 Series - Page 642

Chapter 12 Description of Parameter SettingsMH300
12.2-23
12-2-4 Interior Permanent-Magnet Synchrounous, Sensorless Fieled-Oriented Control
Adjustment Procedure (IPM Sensorless, Pr.00-11=7)
 Control diagram
* IPM Sensorless FOC control is the control method dedicated for IPM, it uses the high salient pole
characteristic (Lq > Ld) of IPM to detect the positions of NS magnetic poles. By doing this, it calculates the
motor’s rotor position at low-speed frequency.
dq
abc
q-axis ACR
Speed
Observer
θ
e
ω
r
d-axis ACR
High Frequency
Injection
Pr.10-35
Pr.10-36
Pr.10-51 Pr.10-52
LPF
Pr.10-34
Pr
.10-39
Pr.10-32
+
0
dq
abc
I
d
*
I
q
*
Active
Magnetic
Regulator
U
a
U
b
U
c
I
a
I
b
I
c
U
a
U
b
U
c
IGBT
PWM
Pr.01-01~01-02
Pr.05-33~05-43
PM
AVR
Pr.07-23
DC Bus
Voltage
Detection
DC Bus
Voltage
Protection
LPF
LPF
Pr
.11-14
Pr.11-17~11-20
ASR
Fcmd
Pr.00-20
Pr
.01-12~01-27
-
Torque Limit
Acc/Dec Time
Pr.11-00 bit0=0
set Pr.11-06~11-11
Pr.11-00 bit0=1
set Pr.11-03~11-05
+
q-axis
Current
Calculator
+