Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm Harmonic Detection thiab Control Functions hauv Active Power Filters

I. Dab tsi yog qhov Active Power Filter (APF)?

IbActive Fais Fab Filter (APF)yog ib qho khoom siv uas nquag them nyiaj rau kev sib haum xeeb thiab lub zog reactive hauv cov tshuab hluav taws xob hluav taws xob los ntawm kev siv tshuab hluav taws xob. Tsis zoo li cov ntxaij lim dej ib txwm muaj, APF tuaj yeem tshawb pom thiab tswj kev sib haum xeeb hauv daim phiaj hluav taws xob, kho cov nyiaj them tam sim no tiag tiag -lub sijhawm kom ntseeg tau tias lub zog hluav taws xob zoo.

II. Harmonic Detection Function

1. Tam sim no thiab Voltage Sampling
APF siv cov sensors los sau cov- lub sijhawm tam sim no thiab qhov hluav taws xob hluav taws xob los ntawm lub zog hluav taws xob. Cov ntaub ntawv piv txwv no qhia txog ntau yam kev sib haum xeeb uas muaj nyob hauv qhov system.

2. Kev txheeb xyuas kev sib raug zoo
Tom qab ua Fourier transformation, lub lim tshuaj ntsuam xyuas cov teeb liab harmonic. Lub kaw lus tuaj yeem txheeb xyuas cov kev sib raug zoo tshaj qhov tseem ceeb zaus (50 Hz lossis 60 Hz) thiab txiav txim siab yog tias lawv tshaj qhov kev nyab xeeb ntawm lub zog hluav taws xob raws li lawv qhov amplitude thiab zaus.

3. Tiag -Lub Sijhawm Tawm Tsam
APF tsis tu ncua saib xyuas kev sib haum xeeb thiab kho qhov kev tshawb pom algorithm raws li kev hloov pauv hauv daim phiaj. Qhov no ua kom ntseeg tau tias cov teeb liab sib haum xeeb hauv daim phiaj hluav taws xob yog qhov tsis tu ncua thiab raug ntes.

III. Harmonic Control muaj nuj nqi

1. Harmonic Current Generation
Raws li cov txiaj ntsig tshawb pom kev sib haum xeeb, APF suav cov kev sib haum xeeb tam sim no uas xav tau rau kev them nyiaj. Cov kev sib haum xeeb tam sim no yog tsim los ntawm cov txiaj ntsig kev sib haum xeeb thiab muaj tib lub zaus thiab amplitude tab sis cov theem sib txawv piv rau cov khoom sib haum xeeb hauv daim phiaj.

2. Tiag -Lub Sijhawm Hloov Kho Cov Nyiaj Them Nqi Tam Sim No
Siv siab - zaus hloov cov khoom (xws li IGBTs), APF tuaj yeem kho cov zis tam sim no hauv lub sijhawm tiag -. Lub kaw lus tsis tu ncua zoo-tunes cov nyiaj them tam sim no hauv kev teb rau cov kev hloov pauv hauv kab sib chaws, kom ntseeg tau tias cov kev sib raug zoo raug tshem tawm tsis tu ncua lossis txo qis.

3. Dynamic Response thiab Adaptive Control
APF nthuav tawm cov peev txheej muaj zog dynamic teb, tso cai rau nws tuaj yeem kho cov nyiaj them tam sim no raws li kev hloov pauv ntawm kev thauj khoom thiab kev hloov pauv hauv kev sib haum xeeb. Los ntawm kev hloov kho algorithms, APF tuaj yeem ua kom zoo dua cov txiaj ntsig zoo hauv kev teb rau cov kab sib txawv, ua kom muaj kev ruaj ntseg thiab ua haujlwm ntawm lub zog.