Điều khiển phi tuyến thống nhất phát điện chạy có sức gió sử dụng máy phát không đồng bộ nguồn kép trên cơ sở hệ thụ động Euler - Lagrange và Hamilton

T3P chl Tin hgc v., Dieu khiSn hqc, T 28, S.t (2012), 9-19

DIEU KHIEN PHI TUYEN HE THONG PHAT DIEN CHAY SU^C Gi6

SLT DUNG MAY PHAT KH6N G D6N G B O NGU6 N KEP TREN CO SCf

HE THU DONG EULER - LAGRANGE VA HAMILTON

DAN G DANH HOANG' . NCUVK N IMUING QUANG^

^ Tnidng DQ,I IIQC Ky thuat Cong iighicp Thai nguyen

^ Trudng Dai hoc Bdeh khoa Ha Nqi

T o m tat. Viec ap dung phitdng phap dieu khien mdi de dieu khien may phat di?n khdng dong bp

nguon kep (DFIG) trong he thdng may phat dien sUc gid nhSm ddnh gid Idia n^ng flng dung vao thflc

tign cd mpt y nghia het sflc quan trpng Bai bao trinh bay ket qua nghien cflu van dyng nguyen ly

tya theo thu dong (passivity - based) dg thiet ke bd dieu khien blLng phUdng phap ket hpp tfla theo

he thu dpng Euler - Lagrange (EL) va luat Hamiltonian de dilu khign may phdt di^n khong d&ng bo

ngudn kep. Bp dieu khign mdi khde phuc dupc sai lech tinh cua bo digu khign ddng khi chUa kit hop

vdi luat Hamiltonian. Ngoai ra vdi b6 dilu Idiien nay hg thdng ldm viec cd chat lupng tot d cac che

do tren va dudi toe dp ddng bd cua may phat.

Abstract . Applying a novel control method to control Doubly-Fed Induction Generators (DFIG)

in wind power systems for evaluating an applicability plays an important role in practice. In this

paper, the passivity based-principle is applied to design a controller for DFIG, in which the Euler

- Lagrange (EL) based-method and Hamiltonian rules are incorporated. The proposed controller

overcomes static error of the current controller without Hamiltonian rules. The system can also offer

exellent performances above and below synchronous speeds of the DFIG.

Y nghi a

Ma tran suy giam

Ma tran lidn kgt cac khoi trong cau true he th&ng

Ma tran bieu dien quan h? vdo ra

Dign cam ciia rotor

H^ng so thdi gian rotor vd stator

Van toe gdc rotor, van toe gdc cd hpc rotor

Thanh phan dvaq cua til thOng stator

W b — Vs Thanh phan dvkg cua t\l thOng rotor

H§ sd tan tOng

H Di§n cam h6 cam gifla stator va rotor

y hieu

Ky hieu

R{x)

J{x)

G(x)

i r

Tr,T,

ulr, It)

Ipld, i>>q

i>rd, At

Ddn vi

H

s

rad/s

Wb = Vs

Wb = Vs

Chu" viet tat