... Advanced torque control strategy
There are some various strategies of torque control: one method is direct torque control,
which uses the simple control scheme and the torque hysteresis controller ... direct torque control
method, another method is indirect torque control. TSF is simple but powerful and popular
method among the indirect torque control method. It s...
...
4. Direct torque control
The direct torque control (DTC) is one of the actively researched control schemes of
induction machines, which is based on the decoupled control of flux and torque. DTC ...
flux
controlle
r
Modified optimal
switching table
Rotor flux
and torque
estimator
-
+
T
e_ref
Ψ
r
T
e
Rotor flux
position
PI torque
controller
Resolve
r
++
-
+
P...
... are two control methods used for the PMSM; field oriented control and
direct torque control. The AC drives in which flux oriented control (FOC) is used field
control leads to flux control. ... the motor. The torque of the PMSM is controlled
by monitoring and controlling the armature current since electromagnetic torque is
proportional to the current.
3. Direct torque co...
... Advanced torque control strategy
There are some various strategies of torque control: one method is direct torque control,
which uses the simple control scheme and the torque hysteresis controller ... direct torque control
method, another method is indirect torque control. TSF is simple but powerful and popular
method among the indirect torque control method. It s...
...
Motor Drive Systems with Direct Torque Control
287
(a)
(b)
Controller Design for Synchronous Reluctance
Motor Drive Systems with Direct Torque Control
273
b. The interrupt ... is used. The A/D converter is
Torque Control
278
(a)
(b)
Controller Design for Synchronous Reluctance
Motor Drive Systems with Direct Torque Control
271
typ...
...
corrector for direct torque control of induction motor is developed.
2. Direct flux -torque control fundamentals
The direct torque control is principally a non-linear control in which the inverter ... V
13
V
13
V
16
V
16
V
1
V
1
V
4
V
4
1 V
4
V
4
V
7
V
7
V
10
V
10
V
13
V
13
V
16
V
16
V
1
V
1
-1 V
16
V
1
V
1
V
4
V
4
V
7
V
7
V
10
V
10
V
13
V...
... so FOC does not work properly (Kasmieh, T. & Lefevre, Y. 1998).
Torque Control
102
control called Direct Torque Control (DTC), (Noguchi, T. & Takahashi, I. 1984), Depenbrock,
M. ... closed loops are for controlling the amplitude of the
rotor flux, and the closed loop of the Q axis is for controlling the stator current, thus for
controlling the motor torque, equation...