-
7/25/2019 Bai Giang Htdks
1/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 51
TL
ai
MTu
BB
*
sdi + PI
PI
MTi
+
*
r
CT
*
sl
r s
*
sqi
sdi
sqi
sdi
sqi
'
sdu
'
squ
sdu
squ
PI
+*
+
+*
sl
bi
au
bu
cu
s
s
Motor
~3
Chng 8: HTHNG IU KHIN S(6T)
I. Cu trc mt hthng iu khin ng c
I.1. Skhi mt hthng iu khin ng cKB 3 pha
Biu khin
Bxl
PWM
EP ADC
SCI
I/O
ADC
L3L2L1
NL
-
7/25/2019 Bai Giang Htdks
2/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 52
I.2. Cc khi chc nngBchnh lu
Bnghch lu 3 pha v mch kch (FPGA, DSP)
Hm
Bxl
dsPIC
-
7/25/2019 Bai Giang Htdks
3/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 53
DSP
Cm bin o lng
Mch giao tip, ni mng
-
7/25/2019 Bai Giang Htdks
4/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 54
TL
ai
MTu
BB
*
sdi + PI
PI
MTi
+
*
r
CT
*
sl
r s
*
sqi
sdi
sqi
sdi
sqi
'
sdu
'
squ
sdu
squ
PI
+*
+
+*
sl
ngc
bi
au
bu
cu
s
s
II. Cm bin o lng
II.1. o in p DCSdng bchuyn i ADC ca biu khin thng qua mch chia
p...
II.2. Cm bin o dng in
o in p trn in trShunt
Bin dng
Cm bin Hall
.c KB
==
3~
Vdc
ieukhien
M3~
a b c
Bientan
2=
3
isa
isbis
issje
isd
isq
s
-
7/25/2019 Bai Giang Htdks
5/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 55
II.3. Cm bin o tc Tachometter
Incremental Encoder
-
7/25/2019 Bai Giang Htdks
6/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 56
-
7/25/2019 Bai Giang Htdks
7/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 57
Absolute Encoder (o gc)
III. Mt su im khi sdng biu khin tc ng cBbin tn
-
7/25/2019 Bai Giang Htdks
8/8
Tuan 13 (3T): Chng 8 (6T)
Bi ging HThng iu Khin S 58
u im ca bbin tn:Gim hthng ckh (rulo, xch, hp stng gim tc,)Gim
ting nTit kim nng lng (tn hao cv tn hao nhit)Thay i tc ddng
Khi ng mm v dng mmn nh tc
Ni mng iu khin txa
ng btc ddng
