Tự động hóa ngày nay

Tren eP sd cac ket qua ve mat md phdng da dat dupe, bai bao nay tiep tuc gidi thieu giai phap ifng dung vl dieu khien trong dieu khien nghich lUu ngudn ap.. Td dd xay dUng bd dieu khien

mm

• A>

Dieu khien tdc do dong c6

Icliong dong bo theo nguyen

tac v/F si> dung vi cJieu khien

PSOC CYSC294B6

DAO H I E U

Dai hoc Mo - Dia chat Ha Noi

I Dat van de

Trong bai bao trUde [1], tac gia da

trinh bay cd sd ly thuyet de xay dUng mdt

bd dieu khien cho nghich lUu ngudn ap

Tren eP sd cac ket qua ve mat md phdng

da dat dupe, bai bao nay tiep tuc gidi thieu

giai phap ifng dung vl dieu khien trong

dieu khien nghich lUu ngudn ap Td dd xay

dUng bd dieu khien tdc dp ddng cd khdng

ddng bd theo nguyen tac V/f sd dung vl dieu khien PSoC CY8C29466 Phan cdn lai cua bai bao dUde bd cue nhU sau:

Muc I I : Nguyen ly dieu khien V/f

- Muc I I I : Hp vl dieu khien PSoC va each sd dung vl dieu khien PSoC CY8C29466 de thi/e hien thuat toan phat xung dieu khien [1]

- Muc IV: SP dd nguyen ly cua mach dieu khien phat xung, IQu dd thuat toan cua chUPng trinh dieu khien va ket qua chay thd nghiem

- Muc V: Ket luan

I I Dieu khien V/f:

Tdc dp cua ddng ed khdng ddng bp (OCKOB) phu thupc tri/c tiep tan sd cua ngudn ciip va so ddi ei/c cua ddng cd theo cdng thifc CO = a)„.s = M

vdi COo = -" va s la he so trLfdt cua ddng

cd.Oo dd mdt trong nhu'ng giai phap phd

bien hien nay de thay ddi tdc dp cua ddng

H Q C &LAM

Breakdown TorqiM

!

TorqiM and Volteo*

•

1 A

1

iBMeSoeMi

b) Hinh 1 Quan he momen-tde dp trong ddng cd khdng ddng bd

a) Khi ciip ngudn trUc tiep b) Khi dieu khien v/f

cd khdng dong bd la thay ddi tan sd f cua

ngudn cifp vao ddng eP

Mdmen xoan tren trpe OCKOB phu

thupc trUe tiep vao ti sd gltfa dien ap va

tan sd cua ngudn cap Viec di'eu khien thay

doi dien ap va tan sd cua ngudn cap ma

dam bao cho ti sd tren la khdng ddi dUde

gpi la dieu khien V/f ma ta dang mong

mudn thUc hien

Quan sat cae mdi quan he ddng dien

-tdc dp; mdmen - -tdc dp tren hinh la va

cac mdi quan he dien ap - tdc dp;

mdmen-tdc dp tren hinh l b ed the thiiy rang khi

ddng ed dUpe dieu khien v/f cd mdt sd Uu

diem:

- Oien ap khi khdi ddng thap lam cho

ddng khdi ddng thiip

- Mien on dinh cua mdmen Idn dan

bden mien lam viec on dinh ciia ddng cP

Idn

- Cd the dUa du'dc tdc dp ddng ed len

tren tdc dp dinh mife trong gidi ban ma

nha san xuiit cho phep Tuy nhien khi dd

dien ap khdng dUPe tang ma chi cd the

tang tan sd Viec tang hay giam tdc dp cho

ddng cP dUde thi/c hien qua viec thay ddi

tan sd cua ngudn dat vao ddng cP

I I I Ho vi dieu khien PSoC

va each sir dung vi dieu

khien PSoC CY8C29466 de

thUc hien thuat toan phat

xung dieu khien

* Hp vi dieu khien PSoC:

PsoC la mot tif viet tat cua cum t d

tieng anh Programmable System on Chip,

nghTa la he thdng kha trinh tren mdt chip

Cac chip che tao theo cdng nghe PsoC cho

phep thay dd'i dUde cau hinh de dang bang

each gan chQc nang cho cac khdi tai

nguyen ed san tren chip Hdn nCfa, nd cdn

ed the ket ndi tUdng ddi mem deo eac khdi

chifc nang vdi nhau hoac giu'a cac khdi chifc nang vdi cac cdng vao ra Chinh vi vay ma PSoC ed the thay the cho riit nhieu chifc nang nen cua mot sd he thdng cP ban chi bang mdt ddn chip

Phan mem lap trinh cho cac chip PSoC cua Cypress cd ten gpi la PSoC Designer Phan mem lap trinh dUpc xay dUng tren

ed sd hUdng ddi tUPng va cau true module hda Mdi khdi chifc nang la mot module mem Viec lap cau hinh cho chip nhU the nao la tuy thupc vao ngUdi lap trinh thdng qua mdt sd thU vien chuiin [2] NgUdi lap trinh thiet lap eau hinh tren chip chi ddn gian bang each mudn chip cd chifc nang

gi thi keo chifc nang dd tha vao khdi tai nguyen sd hoac tUdng tU, hoac ea hai tuy theo td'ng chQc nang Viec thiet lap ngat tren chan nao, loai ngat la gi, eac chan vao

ra boat ddng d che dp nhU the nao deu tuy thupc vao viec thiet lap cua ngUdi lap trinh khi thiet ke va lap trinh cho PSoC

Chip PSoC cung cap:

- Bd vi xQ ly vdi ciiu true Harvard ( ciiu true ma bus du' lieu, bus dia chi va tin hieu dieu khien cua bd nhd chUdng trinh va bd nhd dQ lieu doe lap vdi nhau) [2]

- Cac khdi ngoai vi sd va tUdng tU cd the dupe sd dung ddc lap hoac ket hdp cho cac nhiem vu khac nhau [2]

- Bd nhd linh boat tren chip [2]

- Xung nhip cd kha nang lap trinh dUde

[2] Cac ngoai vi du'dc thiet lap san nhU

bd dinh thdi, cae module truyen thdng,

[2]

* Giai phap su'dung vi dieu khien PSoC

de phat xung dieu khien:

Tren eP sd ly thuyet da dUde trinh bay

d bai bao trUde [1], glal phap dUde dUa ra

de thUe hien phat cae chudi xung dieu khien nhUsau:

VI dieu khien ho PSoC d^idc li/a chpn la

^ ^

TI 2n

: : : : 9

1 \ 1

loai CY8C29466, lUa chpn sd khoang chia cua mdt nQa chu ky hinh sin la n = 12, khi

dd mdi khoang chia la gdc p tUPng dng vdi mdt khoang thdi gian gpi la T, khi dd gdc lech giifa hai pha la "" se ifng vdi khoang thdi gian la 4T, [1]

Sif dung mdt bd Timer 16 bit de tinh khoang thdi gian T Mdi khi bd Timer xay ra ngat thi cd nghTa la da du khoang thdi gian

T va bd Timer se dUpe nap lai

0

VM

Vb:

Vw

Vw

Vb5 Vb6

Hinh 2 Nguyen tac phat xung dieu khien

SQ dung sau bd PWM 8 bit de phat xung dieu khien cho sau van ban dan theo nguyen tac nhU hinh 3 Theo dd cac chuol xung dieu khien cd chu ky 2it va lech pha

nhau mdt gdc la ni7> Qng vdi khoang thdi

gian la 2T

SQ dung bdn bd dem Counter 8 bit cho

4 nut dieu khien Cac bd dem nay cd gia trj dat bang 1 Khi mdt nut dUpc an, se xay ra ngat cua bd dem tUdng ifng, chUdng trinh ngat xac dinh nut da dupe an Giai phap nay giup lam giam hien tUdng nhieu

Op rdng cua cac chudi xung di'eu khien dupe nap lai khi :

- Xay ra ngat cua Timer

- Xay ra ngat cua cac nut dieu khien

SQ dung IC dieu khien md cho IGBT (IGBT driver) loai IR2103 de dieu khien ddng md cho IGBT nham dam bao cac ed che boat ddng cho IGBT va bao ve cac van

HOC

P07

P05

P03

P01

P27

P25

P23

PS-I

P17

P15

P-13

PH

datSV

1

2

3

4

5

6

7

8

^ 9_

'^"lo"

11

12

13

14

28

27

26

25

24

23

??

21

20

19

18

17

IS

15

5V P06

PM P02 POO P2e P24 P22 P26

XRES

Pie

P14 P12 P10

C8

II

datSV

5V

CY8C29446

R16

• ^ S / S , ^

J9 RESET

•Jo o2-2.7K

Hinh 3 : Mach dieu khien

XRES

J5 START

_Lo ol

C2

R17 33K

S RH

J« < sat STOP

_dsgv_

"•gy

C3

J7

UP

C4

R1S 33K

o 2 - E S S

-DOWN

R2a 33K

HI ESL

Khoi tao cac bo PWTvl va Timer Khoi dong LCD ADC va cac Counter

Hien thj trang thai cha tren LCD

- ^ - t ^ T s t o p = TRUE^

Khcri dong cac bo PWM Timer

Dijng cac bo PWM Timer

Dat thong

so he thong

: ^ S t o p = TRUt~

ban dan nay

Chu'dng trinh dieu khien sd dung eac ngat de kiem tra trang thai va cap nhat gia tri mdi Cac chUdng trinh ngat se thi/e hien cac nhiem vu nhUsau:

* Ngat thdi gian cua Timer :

- Kiem tra thdi diem de thUe hien viec dieu khien phat xung ddng md cac IGBT

- Nap lai gia tri cho Timer va cac bd PWM

* Ngat cua nut an START/OK :

- Xac nhan cac thdng sd li/a chpn va chuyen sang dat thdng sd khac khi thiet bi d trang thai dat thdng sd

- Oieu khien khdi ddng he thdng de dUa thiet bi vao lam viec

* Ngat cua nut an STOP/MENU :

- Vao che dp dat thdng sd neu he thdng chUa d trang thai lam viec

- Oieu khien he thdng ddng lam viec neu he thdng dang d trang thai lam viec

- Thoat khdi che dp dat thdng sd

* Ngat cua nut UP va DOWN :

- Thi/c hien viec tang giam eac thdng sd dat neu thiet

bi d che dp dat thdng sd

- ThUc hien viec tang giam tan sd khi ddng cd dang lam viec neu ban dau li/a chpn viec dieu khien bang nut

an

IV Sd do nguyen ly cua mach dieu

khien phat xung va \\i\x do thuat toan

cua chuong trinh dieu khien

* Sd dd mach dieu khien :

* LUu dd thuat toan chUdng trinh dieu khien:

* Ket qua chay thif nghiem :

APOLLO

CONG TY TNHH KHOA HOC KY THUAT APOLLO

• ADD: Phong 1606, Tang 16, Nha C3, Khu Do Thj My Binh I TCr Liem, Ha Noi

• Tel: 04 62872425 - 0976202000 • Fax: 04 62872422

• Email: jiang©craneparts.com.tw "Web: http://www.apollotech.com.vn

HQC & LAM

3< U21A

TLP621-2 GND12V

3<

diodschotky

; C13 012

c 4,rui GND12V

m LO

HIN HO COM

VB VCC

U21B TLP621-2 GND12V

RIO

TLP621-2 GND12V

3<

diode chotky

C14 c i s ;

UfT LO

HIN HO COM

VB VCC

U22B TLP621-2 GND12V

Hinh 4 : Mach phat xung dieu khien cac van ban dan IGBT

Mach du'dc chay thir nghiem dieu

l<hien mot dong cd khong dong bp ba pha

CO thong so nhiTsau:

Cong suat P =15 (KW)

Dien ap dinh miTc U = 380 (V)

Tansof = 50 (Hz)

Toe do dinh mu^c

PI 2

P13

R13

1K

R15

^ X S / ^

5V

^

5V

4

PWM 5 J

r > • K U23A

- ^ k TLP621-2

J GND12V 12V

S R14

\ 10K

PWM 2 ]

W^r U23B

- • < k TLP621-2

J GND12V

3

12V k.1

PI

diode chotky

^ C16 C 1 7 ^

C 4,7uF

GND12V

4

S

1

CIH" LO HIN HO COM

VB VCC

VS R2103/SO

3

b) = 1460 (vong/phiit)

Tai dat vao dong cd Mc = 0,0069.(1)^ (Nm)

Qua trinh chay thif nghiem dUdc thUc hien vdi nhieu gia tri tan so dat khac nhau, ifng vdi moi tan so dat, cac thong so do dupe dupe cho 6 bang sau:

V Ket luan

Ket qua chay thif nghiem cho thay rang khi dieu khien dong cd khong dong

bp chay dUdi toe dp dinh mife bang phUPng phap thay doi tan so thi ngoai viec dieu chinh de dang, trdn tru, phUdng phap nay con giiip tiet kiem rat nhieu nang lUpng ma dong cP tieu thu do viec ca dong

va ap tren phan ifng ciia dong cd deu giam Ket qua thif nghiem nay se la tien

de cho viec thiet ke nhu'ng bp dieu khien toe dp dong ed ddn gian, gia thanh thap cho nhieu nhifng ifng dung tiet kiem nang lupng khac nhau

TAI LIEU THAM KHAO

[1] Oao Hieu, U'ng dung Matlab -Simulink de mo phong bp dieu khien nghich lUu cau ba pha theo phUPng phap dieu che dp rpng xung Tap chi TU Opng Hoa ngay nay, 9/2009

[2] Cypress Semiconductor

2003-2007 - Documents, PSoC CY8C29466 data sheet, 2007

[3] www.iri'.com, IR2103 data sheet,

2004

[4] Bill Quoc Khanh, Nguyin Van Lien, Pham Quoc Hai, DUPng Van Nghi, Oieu khien tU dong truuy'en dong dien, NXB Khoa hoe kl thuat

STT

1

2

3

4

5

6

7

8

9

Tan so dat

(Hz)

10

15

16,7

20

25

30

35

40

50

Dien ap day phan img CV)

15,2 34,2

42 60,8

95 136,8 186,2 243,4

380

Dong dien pha phan irng (A)

6,72 12,23 12,87 19,45 26,87 32,31 37,76 43,84 49,14

Toe do dong

bo (v/p)

300

450

500

600

750

900

1050

1200

1500

Toe do roto (v/p)

220

378

425

520

670

823

972

1125

1450

He so trupt 0,2667 0,1600 0,1502 0,1333 0,1067 0,0856 0,0743 0,0625 0,0333

ADD: Phong 1606, Tang 16, Nha C3, Khu Do Thj My Dinh I ,TCr Liem, Ha Noi A D O I l O

• Tel: 04 62872425 - 0976202000 • Fax: 04 62872422 M n V J l _ U * > J

Email: jiang@craneparts.com.tw • Web: http://www.apollotech.com.vn