LED harmonics feem ntau tshwm sim los ntawm cov yam ntxwv ntawm tus neeg tsav tsheb fais fab mov thiab load nonlinearity, uas yuav ua rau muaj zog daim phiaj poob thiab cov khoom cuam tshuam. Cov teeb meem no tuaj yeem txo tau los ntawm kev ua kom zoo ntawm cov khoom siv hluav taws xob thiab txhim kho cov ntxaij lim dej.
I. Ua rau
1. Hloov Cov Khoom Siv Hluav Taws Xob: Thaum lub zog hloov hluav taws xob ntawm LED teeb ua haujlwm, cov khoom siv tam sim no yog cov khoom siv hauv cov pulses es tsis ntws mus tas li, ua rau tsis muaj -sinusoidal tam sim no waveform thiab tsim kev sib haum xeeb.
2. Nonlinear Loads: Kev sib raug zoo ntawm LED voltage thiab tam sim no yog nonlinear; LEDs tsuas yog ua thaum qhov hluav taws xob nce mus txog qhov pib, ua rau muaj kev cuam tshuam ntawm cov nthwv dej tam sim no thiab ua kom muaj kev sib haum xeeb ntxiv.
II. Main Hazards
1. Grid Impact: Harmonics ua rau distortion nyob rau hauv daim phiaj voltage waveform, ua rau kis kab poob thiab txo tag nrho cov efficiency ntawm lub hwj chim tiam thiab cov khoom kis tau tus mob.
2. Kev cuam tshuam ntawm cov khoom siv: Cov khoom siv hluav taws xob nyob ze yuav muaj kev cuam tshuam ntawm kev tshuaj ntsuam (xws li daus), kev sib txuas lus suab nrov, thiab txawm tias ua haujlwm tsis zoo hauv cov khoom siv tiv thaiv, ua rau muaj kev hem thawj ntawm kev ruaj ntseg ntawm lub zog.
III. Kev Tiv Thaiv Kev Tiv Thaiv
1. High-Quality Driver Power Supply: Kev siv lub zog tsim kom zoo thiab ua kom zoo dua qhov kev tswj cov waveform tam sim no txo cov peev txheej ntawm kev sib haum xeeb.
2. Harmonic mitigation cov cuab yeej: Nruab cov active / passive lim los lim thiab them nyiaj rau cov kev sib haum xeeb tam sim no, ua rau cov kab hluav taws xob input tam sim no mus rau tus qauv sine yoj.
