寮傛鐢靛姩鏈虹煝閲忔帶鍒惰皟閫熺郴缁熻嫳璇枃鐚炕璇?/p>
The Design of the Vector Control System of Asynchronous motor
Abstract: Among various modes of the asynchronous motor speed control has
the advantages of fast response
,stability ,transmission of high-performance and
wide
speed
range
,For
the
need
of
the
asynchronous
motor
speed
control
,the
design uses 89C196 as the controller , and introduces the designs of hardware and
software
in
details .The
design
is
completed
effectively
with
good
performance
simple structure and good prospects of development.
Key words :Asynchronous motor ,89C196 ,Vector control
1.
Introduction
AC
asynchronous
motor
is
a
higher
order
,multi-variable
,non-linear
,and
strong coupling object ,using the concept of parameters reconstruction
and state
reconstruction
of
modern
control
theory
to
achieve
decoupling
between
the
excitation component of AC motor current and torque component ,and the control
process of AC motor is equivalent to the control process of DC motor .the dynamic
performance of AC speed regulation system obtaining notable improvement ,thus
makes DC speed replacing AC speed possible finally . The current governor of the
higher production process has been more use of Frequency Control devices with
vector-control.