Chng 0CC H THC V KHI NIM C BN

Cc khi nim c bn

Cc khi nim c bn

Mch mt pha vi dng, p dng sin

Mch mt pha vi dng, p dng sin

Mch ba pha cn bng (dng, p dng sin)

Mch 3 pha vi dng, p dng sin v ch xc lp

Mch ba pha cn bng (dng, p dng sin)

Mch ba pha cn bng (dng, p dng sin)

Cun dy L T in C

Ch xc lp vi dng, p khng sinV d: Dng sng in p ng ra v dng sng dng-p ng vo ca mt b bin tn 3-pha kiu iu rng xung (PWM) in hnh.

Phn tch FourierPhn tch FourierH s mo dng (%THD)H s cng sut

Phn tch Fourier

Phn tch Fourier

Mo dng do sng hi

Mo dng do sng hi

Chng 1CC LINH KIN BN DN

Lnh vc ng dng ca TCS

V d ng dng ca b bin i TCSng dng cc b bin i TCS gip tit kim nng lng, nng cao cht lng p ng ca thit b.

S khi B bin iLu l cc mch TCS hot ng theo ch ng-ngt (switch-mode), khc vi cc mch in t hot ng ch tuyn tnh (linear mode) Hiu sut mch TCS cao hn mch in t ch tuyn tnh.

B n p tuyn tnhTransistor cng sut c iu khin hot ng tng t nh mt in tr bin i

Mch c hiu sut thp v cng knh

B n p xung

B n p xungTransistor hot ng nh mt kha ng ngt hiu sut caoBin p, mch lc hot ng tn s cao kch thc nhin p ng ra thay i bng cch iu khin rng xung (t l ton/Ts)

Ch hot ng ca BB

Gii thiu cc linh kin TCS thng dng

Diode

Thyristor (SCR)

BJT (Bipolar Junction Transistor)

BJT (Bipolar Junction Transistor)

MOSFET

GTO (Gate Turn-Off Thyristor)

GTO (Gate Turn-Off Thyristor)

IGBT (Insulated Gate Bipolar Transistor)

MCT (MOS-Controlled Thyristor)

Kh nng ng ngt ca cc kha bn dn thng dng

Kh nng ti & ng ct ca cc linh kin TCS hin nay