Yuav ua li cas siv dodeses txhawm rau txhim kho kev ua tau zoo ntawm cov ups fais fab?

一, Ntaus Ntawv Xaiv: Kev ua tiav kev ua tau zoo los ntawm cov khoom mus rau qauv
1. Kev ua kom zoo ntawm kev rov ua kom nrawm Diode (FRD)
Traditional silicon-based fast recovery diodes experience significant losses during high-frequency switching (such as above 10kHz) due to their large reverse recovery charge (Qrr). For example, the 50A FRD matched with a 650V/50A IGBT module has a reverse recovery loss ratio of 35% in UPS inverters. By adopting a soft recovery characteristic design (soft factor S>0.7), DT ntawm cov thaub qab rov qab tam sim no tuaj yeem txo qis, thiab cov spolrage spikes los ntawm kab tsis muaj peev xwm tuaj yeem txo qis. Renesas Electronics 'kev tshawb fawb qhia tau hais tias txo qhov loj ntawm from chips rau 30a igbt) tuaj yeem txo cov nqi hluav taws xob tag nrho los ntawm 2.5% thiab txuag 20% ​​ntawm chip nqi.

2. Qhov tseeb voltage zoo ntawm schottky diodes
Nyob rau hauv tsis tshua muaj hluav taws xob thiab siab tshaj tawm cov xwm txheej tam sim no (vf ≈ conduction bases txo los ntawm kev ua kom zoo ib yam (VF ≈) Cov ntaub ntawv ua haujlwm UPS qhia tau tias kev hloov cov khoom siv Sciodes nrog kev them nyiaj hluav taws xob nrog 1.8% thiab khaws cia txog 12000 ntawm hluav taws xob txhua xyoo. Nws yuav tsum tau sau tseg tias kev hloov pauv tawg ntawm schottky dodic-carbide kev sib txuas lossis cov ntawv thov ntau dua li xyoo pua (nrog rov qab withstand voltage txog 650v lossis siab dua).

3.
Sic diodes pom zoo ua tau zoo heev nyob rau hauv high- zaus }s vim lawv lub sijhawm rov qab txias (qrr ≈) thiab kub kub txog li 200 degree). Cov ntaub ntawv xeem ntawm 100kva photovoltaic inverter qhia tau hais tias hloov silicon frd nrog sic diciodes txo tau los ntawm 96.2% rau 97.8%. Txawm hais tias Sic Diodes nqi 3 {{{{12} ntev dua li cov khoom siv roj ntsha, lawv cov yam ntxwv ntawm kev txo cov txiaj ntsig puv npo zoo li cov chaw qhia cov ntaub ntawv.

2, Kev Tsim Qauv Topology: Kev Kho Dua Tshiab ntawm Circuitacle ntawm Circuitaccuit txoj kev khiav hluav taws xob
1. Poob kev sib npaug ntawm peb -} theem theem siab
Hauv cov tsoos ob -} theem dais inverters, xws li 800v), thiab rov qab rov qab cov xwm txheej nce ntxiv nrog cov square ntawm qhov hluav taws xob. Cov Diode clamped peb {{{{}} theem kev ntxhov siab ntawm ib nrab ntawm lub peev xwm tsheb voltage (thaum txo qhov loj ntawm lub lim inductor los ntawm 30%. Tom qab txais peb txoj kev thov peb {{{{{{}} theem kev nce qib nce ntxiv ntawm 94.5% rau 96.8%, thiab cov pa roj carbon monissions tau txo los ntawm 120 tons.

2. Kev ua kom zoo ntawm synchron lub zog thev naus laus zis
Nyob rau UPS cov zis tso tawm cov txheej txheem, tsoos diode VF poob nyiaj rau qhov kev sib tw siab. Synchronous kev siv tshuab tuaj yeem txo cov tshuaj tiv thaiv los ntawm 80% los ntawm kev hloov cov diises nrog mosfets thiab siv cov chips tsav nti los tswj lawv lub sijhawm. Cov ntaub ntawv tshawb fawb ntawm 200kva UPS qhia tias cov cuab yeej siv technology synchroned los ntawm 95%, tshwj xeeb rau 94% vs. 91%).

3. Kev ua haujlwm ua haujlwm tshiab ntawm qhov zoo tagnrho Diode Circuit Court
Rau ntau lub roj teeb hloov cov xwm txheej, tsoos diode oring cirarits raug kev txom nyem los ntawm voltage poob poob (vfat) thiab thim rov qab txaus ntshai. Qhov zoo tshaj plaws Diode Circuit Court tiav xoom Voltage thiab tswj cov khoom siv rov qab los ntawm kev tiv thaiv rov qab thiab viav vias. Nyob rau hauv ib qho kev muaj cov ntawv thov kev lag luam tawm, cov teeb meem zoo tshaj plaws txo cov roj teeb poob ntawm 12W txog rau 0.5W txog 0.5W txog 0.5W txog 0.5W rau 0.5W txog rau 0.5W txog 0.5W rau 0.5W txog rau 0.5W txog kev hloov pauv lub neej tshwm sim los ntawm kev rov qab tam sim no.

3, Kev sib xyaw ua ke: kev txhim kho ib qho kev txhim kho ntawm lub tshuab ua haujlwm sib txuam
1. Lo lus ua kom zoo dua rau cov qauv tsim qauv
Modular UPS yuav pw tsaug zog ModleLes los ntawm N + XOUNTIONS tus nqi ua haujlwm rau 60% (Tsoos ib txwm muaj nce siab feem ntau tsawg dua 50%). Tom qab tau txais cov tub kawm nyob rau hauv ib qho chaw siv nyiaj txiag, lub kaw lus ua haujlwm tau nce los ntawm 93% rau 96%, thaum txo cov nqi haujlwm los ntawm 30% los ntawm kev pw tsaug zog zoo. Hauv cov xwm txheej no, ddayes yuav tsum tau raws li qhov yuav tsum tau ua ntawm tsis muaj thermal kuj (r θ ja<10 ℃/W) to adapt to the heat dissipation challenges under high-density packaging.

2. Kev tswj qhov kub ntawm thermal tswj thev naus laus zis
70% ntawm Diode poob yog hloov mus rau hauv tshav kub, thiab rau txhua 10 tus nqi rov qab nce dua QRR nce los ntawm 15% {{}} 20%. Los ntawm kev siv tooj liab clip khi kev thev naus laus zis hloov cov tsoos Aluminium hlau tuam txhab, lub thermal ua haujlwm ntawm dodes tuaj yeem txo los ntawm 40%; Los ntawm kev sib txuas ua kua txias technology, qhov kub ntxhov ntawm SIDs dic yuav muaj kev ruaj khov hauv qab 150 qhov kev txwv tsis pub muaj peev xwm hloov kho dua. Cov kev xeem nce ntawm qee qhov chaw nres tsheb 5G qhia tau tias cov ua kua txias txuas ntxiv rau ntau dua 15 xyoos (cov txheej txheem huab cua txias yog 8-10 xyoo).

3. Kev ua kom zoo ntawm Digital tswj tshuab
Kev tswj cov digital raws li DSP tuaj yeem soj ntsuam cov tsis tau xws li Diode VF thiab qrr nyob rau hauv tiag tiag los ntawm kev hloov chaw ua haujlwm (xws li hloov pauv ntawm 10kHz mus rau 20kHz). Ib tug ntse tau kwv yees cov load hloov los ntawm kev siv lub tshuab kawm algorithm, thiab kho cov diode tsav lub sijhawm ua ntej, kom cov system txuag kev sib pauv<0.5% in the full load range, which is three times more stable than the traditional analog control scheme.