Litlhoko tsa PCB tsa Power Inverter bakeng sa Likopo tsa Solar, UPS, le Motor Drive

PCB ea motlakase ea motlakase
Tafole ea likateng
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Li-PCB tsa inverter tsa motlakase li fetolela DC hore e be AC ​​bakeng sa lits'ebetso tse batlang ntho e 'ngoe le e' ngoe ho tloha ho maqhubu a hloekileng a sine bakeng sa lisebelisoa tsa bongaka tse hlokolosi ho ea ho maqhubu a lisekoere a thata bakeng sa taolo e bonolo ea enjene. Phapang pakeng tsa inverter e ka tšeptjoang e tšoarellang lilemo tse 20 holim'a marulelo a marulelo a letsatsi ha e bapisoa le e 'ngoe e hlōlehileng ka mor'a likhoeli e theohela ho liqeto tsa moralo oa PCB tse entsoeng pele ho nts'etsopele.

Mokhoa oa ho Rala Sebopeho sa H-Bridge PCB bakeng sa Li-Solar Inverters

H-borokho ke moo katleho e hapiloeng kapa e lahleheloang ke meralo ea motlakase ea motlakase ea PCB. Millimeter e 'ngoe le e' ngoe e eketsehileng ea bolelele ba trace e eketsa inductance, e bakang ho putlama ha motlakase le tahlehelo e eketsehileng ea switching. Re bone li-IGBT tsa 600V li hloleha ho litsamaiso tsa 400V ka lebaka la li-spikes tsa motlakase tse bakoang ke moralo.

Melao-motheo ea bohlokoa ea moralo:

  • Li-capacitor tsa libese tsa DC li tlameha ho thella borokho ba H ka likhokahano tse ka tlase ho 20mm
  • Bakhanni ba liheke ba eme ka har'a 15mm ea liheke tsa IGBT
  • Ho utloa ha joale leotong le leng le le leng bakeng sa ts'ireletso ea ho thunya
  • Lisebelisoa tsa motlakase tsa heke tse inehetseng tse nang le mabaka a ka thoko

Bakeng sa inverter ea letsatsi ea 10kW, ho ntlafatsa moralo oa H-bridge ho ntlafalitse katleho ho tloha ho 96.5% ho isa ho 97.8% - e bonahalang e le nyane empa e bohlokoa bakeng sa tlhahiso ea matla a likete nakong ea bophelo ba sistimi. Mekhoa e ts'oanang ea ntlafatso e sebetsa ho meralo ea PCB ea lisebelisoa tsa motlakase maemong 'ohle a matla.

 

Kopa PCB Quote

Seo Size DC Bus Capacitor bakeng sa 10kW Inverter PCB

Ka holimo ho 5kW, mekhoa ea setso ea PCB ha e khone ho sebetsana le maqhubu a libese tsa DC. Libaka tsa libese tse nang le laminated li fana ka li-ultra-low inductance empa li eketsa litšenyehelo le ho rarahana. Mokhoa oa rona o kopanya li-PCB tsa koporo tse boima le ts'ebetso ea maano a ho kopanya libese moo ho hlokahalang.

Maano a ts'ebetsong ea libese tsa DC ka boemo ba motlakase:

  • Tlas'a 3kW: lifofane tsa koporo tsa 4-6oz ho li-PCB tse ngata
  • 3-10kW: Libars tsa libese tsa koporo tse rekisoang ho li-pads tsa PCB
  • 10-50kW: Libaka tsa libese tse nang le laminated tse nang le li-capacitor tse kopantsoeng
  • Ka holimo ho 50kW: Likopano tse arohaneng tsa libese tse nang le liboto tsa taolo tsa PCB

Li-capacitor tsa lifilimi li fana ka ts'ebetso e ntle ea hona joale ea ripple bakeng sa lits'ebetso tsa bese ea DC. Li behe ka mokhoa o lekanang ho potoloha borokho bakeng sa kabo e leka-lekaneng ea hona joale. Kenya li-resistors tsa bleeder bakeng sa polokeho—bese ea DC e chariloeng e ka bolaea. Melao-motheo e tšoanang ea sebetsa ha ho raloa litharollo tsa PCB tsa matla a phahameng bakeng sa ts'ebetso e phahameng.

Molemo ka ho Fetisisa Heke Driver Circuit bakeng sa IGBT Inverter PCB Design

Li-gate drive tse ka thoko li thibela ho hloleha ho hoholo empa li hloka ts'ebetso e hlokolosi. Li-Optocouplers li fana ka ho itšehla thajana empa li na le bothata ba ho hoholeha ha mocheso le botsofali. Li-isolator tsa dijithale li fana ka ts'ebetso e betere empa li hloka moralo o nepahetseng oa phepelo ea motlakase.

Likarolo tsa ts'ireletso tse bolokang li-inverters:

  • Ho lemoha ha desaturation hoa tima nakong ea lipotoloho tse khutšoane
  • Miller clamp e thibela ho bulela likokoana-hloko
  • Ho koala ha bonolo ho fokotsa khatello ea motlakase nakong ea liphoso
  • Active clamping meedi voltage overshoot

Bakeng sa lits'ebetso tsa ho khanna ka motlakase, kenya tšebetsong tlhahiso ea hardware e sa feleng e le bekapo taolong ea software. Re bone liphoso tsa software li baka ho thunya ho feta moo tšireletso ea hardware e thibeloang. Maano ana a tšireletso a bohlokoa ka ho lekana meralong ea PCB ea converter ea matla e sebetsanang le maemo a tšoanang a matla.

Mokhoa oa ho Bala Output Filter bakeng sa Pure Sine Wave Inverter

Li-inverters tse hloekileng tsa sine wave li hloka li-filters tsa LC ho tlosa likarolo tse fetohang khafetsa. Empa li-filters tse hlahisoang li sebelisana le li-loops tsa taolo ea inverter, tse ka bakang ho hloka botsitso. Likarolo tsa sefe ea boholo bakeng sa meroalo e matla ka ho fetesisa, eseng feela lintlha tse hanyetsanang.

Lintlha tsa moralo oa sefe:

  • Inductor saturation tlhōrōng ea hona joale ho kenyelletsa le meroalo e sebetsang
  • Reite ea hona joale ea capacitor ha e fetoha khafetsa
  • Marang-rang a damping ho thibela resonance le impedance ea mojaro
  • Ho sefa ka mokhoa o fapaneng le o tloaelehileng bakeng sa ho latela EMI

Li-inverter tsa grid-tie li hloka ho sefa ho eketsehileng ho fihlela maemo a harmonic. Li-filter tsa LCL li fana ka ho fokotseha ho betere ho feta LC e bonolo empa li hloka ho damping e sebetsang. Ts'ebetso ea rona ea ho kopanya PCB e kenyelletsa tlhahlobo ea analyzer ea marang-rang ho netefatsa karabelo ea sefa. Mekhoa e ts'oanang ea ho sefa e sebetsa meralong ea PCB ea sefa ea phepelo ea motlakase.

Sesebelisoa sa Inverter PCBA

Inverter PCB Thermal Design bakeng sa -40°C ho isa ho 70°C Ts'ebetso

Li-inverters tsa letsatsi li tobana le mocheso o feteletseng ho tloha ho -40 ° C masiu a mariha ho ea ho 70 ° C mocheso oa ka hare matsatsing a lehlabula. Khetho ea likarolo le moralo oa PCB o tlameha ho amohela maemo ana a feteletseng ha o ntse o boloka ts'epo ea lilemo tse 20+.

Mekhoa ea ho pholoha bakeng sa tikoloho e feteletseng:

  • Sebelisa bonyane ba 105°C-rated capacitor, 125°C ha u khetha
  • Kenya ts'ebetso ea ho roala ka mokhoa o ts'oanang bakeng sa ts'ireletso ea mongobo
  • Moralo bakeng sa convection ea tlhaho - Fans e hloleha libakeng tse lerōle
  • Beha likarolo tse baballang mocheso libakeng tse batang

Re thusitse moreki ho rala botjha inverter ea bona ea letsatsi bakeng sa ho kenya lehoatata. Ho beoa ha likarolo tsa maano le moralo o ntlafalitsoeng oa mocheso ho felisitse ho hloleha pele ho nako ho neng ho aparetse moralo oa pele. Mekhoa ena ea tsamaiso ea mocheso e boetse e thusa lits'ebetso tsa PCB tsa amplifier ea matla tse sebetsang maemong a thata.

Mokhoa oa ho Fokotsa Lerata ho Inverter Control PCB

Li-inverters tsa sejoale-joale li sebelisa DSP kapa taolo e thehiloeng ho microcontroller e hlokang matla a hloekileng le khokahano e fokolang ea lerata. Arola liboto tsa taolo ho mekhahlelo ea matla ha ho khoneha. Ha o kopantsoe, kenya ts'ebetsong ho itšehla thajana le ho sireletsa.

Laola mekhoa e metle ea potoloho:

  • Balaoli ba ikemetseng ba LDO bakeng sa likarolo tsa analog le digital
  • Ho sefa ka mekhahlelo e mengata ho mats'oao a motlakase / hona joale
  • Tsela e fapaneng bakeng sa matshwao ohle a kutlo
  • Molebeli o pota-potile lipotoloho tse hlokolosi tsa analoge

Bakeng sa li-PCB tsa ho khanna enjene tsa mekhahlelo e meraro le li-drive tsa maqhubu a feto-fetohang, li-interface tsa encoder li hloka tlhokomelo e khethehileng. Li-receiver tse fapaneng le ho felisoa hantle li thibela liphoso tsa boemo tse bakang ho se tsitse ha taolo ea enjene. Mekhoa e tšoanang ea ho fokotsa lerata e sebetsa ho lipotoloho tsa taolo ea PCB tsa converter ea DC-DC.

Matla a Inverter PCB Testing Standards le Mekhoa

Teko ea inverter e tlameha ho netefatsa ts'ebetso tlasa maemo a nnete a lefats'e, eseng feela meroalo e hanyetsanang. Etsa liteko ka li-motor, li-transformer, le meroalo e sa lekanyetsoang e tsamaellanang le lits'ebetso tsa 'nete. Netefatsa ts'ebetso e tsitsitseng ka lintlha tse etellang pele le tse saletseng morao.

Liteko tsa bohlokoa ho feta ts'ebetso ea mantlha:

  • Teko ea surge ka IEC 61000-4-5
  • Karabelo ea mehato ea mojaro ka mefuta e fapaneng ea mojaro
  • Thermal cycling e nang le matla a libaesekele
  • Phapang e fapaneng ea grid-tie bakeng sa li-inverters tsa grid-tie

Tšebeletso ea rona ea tlhahiso ea elektroniki e kenyelletsa bokhoni bo felletseng ba ho hlahloba li-inverter, ho tloha ho li-inverter tse nyane tsa UPS ho isa ho li-converter tsa motlakase tse nang le grid-scale.

Khetha Highleap Electronics bakeng sa tlhahiso ea PCB e utloisisang litlhoko tse ikhethang tsa lits'ebetso tsa motlakase oa inverter. Re fana ka litharollo tse matla tse pholohang maemo a thata ha re ntse re boloka ts'ebetso e phahameng.

Kopa PCB Manufacturing & Assembly Quote Hona joale

Power Inverter PCB Design & Manufacturing FAQ

1. Phapano ke efe pakeng tsa PCB ea motlakase ea letsatsi le moralo oa PCB oa UPS?

Solar inverter PCBs e totobatsa botšepehi ba sebopeho sa MPPT, taolo ea lihokelo tsa DC tse nang le matla a phahameng a motlakase (hangata 600-1100V), taolo ea sefahla sa marang-rang sa LCL le ho latela melao e khahlanong le ho ts'oara lihlekehleke (mohlala UL 1741 / IEEE 1547). UPS inverter PCB e etelletsa pele nako ea phetisetso e potlakileng, phallo e tlase ea harmonic (THD) tlas'a meroalo e sa lekanyetsoang ea IT, kopanyo ea taolo ea betri le ts'ebetso ea nako e khuts'oane ea mojaro o mongata. Tlhokomelo ea likaroloana, creepage/clearance le litlhoko tsa ho palama libaesekele tse futhumatsang hangata li boima ho solar e marulelong khahlano le UPS ea kahare. Melao-motheo e mengata ea meralo-ho aroloa ha liheke, sebopeho sa libese tsa DC, khatello ea EMI-e arolelanoa ka li-platform tsa PCB tsa elektroniki.

2. Sebopeho sa SiC inverter PCB se fapane joang le sebopeho sa IGBT inverter PCB?

SiC MOSFETs e fetoha ka potlako (e phahameng dv/dt & di/dt), e etsa hore loop inductance le li-parasitics tsa heke li be bohlokoa haholo. Karohano ea loop ea heke le loop ea motlakase, likhokahano tsa mohloli oa Kelvin le ultra-short DC link capacitive loop (<10–15nH target) e fokotsa ho thunya le ho lla. Khahlano ea heke hangata e fetoha ntho ea tokiso bakeng sa EMI vs tahlehelo ea switching. Li-spikes tsa hona joale tse tloaelehileng li hloka tšireletso e matla le ho beoa ka mokhoa o nepahetseng oa Y-capacitor. Tekanyo ea mocheso e phahame; le ha ho na le tahlehelo e tlase, li-gradients tse kopanang ho isa ho ambient li ka tsepamisa mohopolo ntle le ho ata ha koporo e matla. Mehopolo ena e boetse e ntlafatsa botsitso ba mocheso oa motlakase oa PCB o itokiselitseng nakong e tlang.

3. Joang ke leka inverter PCB tšepahala ho feta licheke tsa motheo tsa tshebetso?

Likarolo tsa bohlokoa: HALT/HASS (khatello e potlakileng), ho palama baesekele e futhumatsang e nang le mojaro o matla, ho phahama ho latela IEC 61000-4-5, ESD ho IEC 61000-4-2, ho tsamaisoa/radiated EMI pre-scan, licheke tsa ho tsoa ka mokhoa o itseng (≥800V), methati ea ho feto-fetoha ha motlakase (≥800V) ho chesoa ke mocheso o phahameng. Ho rengoa ha data ka matla a ho feto-fetoha, li-gradients tsa nako le li-fault counters ho ntlafatsa tlhokomelo ea esale pele ho pholletsa le letsatsi, UPS le lihlahisoa tsa koloi ka har'a ts'ebetso e kopaneng ea ts'ebeletso ea tlhahiso ea elektroniki.

4. Joang ho thibela IGBT kapa MOSFET thunya-ka ka inverter PCB dipeakanyo?

Kopanya: hardware interlock (deadtime logic), bakhanni ba liheke tsa phatlalatso tse tsamaellanang, li-loop routing tse thata, Miller clamp, lihanyetsi tse nepahetseng tsa heke, desaturation / overcurrent sensing ka leoto le leng le le leng le taolo e potlakileng ea ho koala. Qoba mesaletsa e telele ea liheke (> 15–20mm) e hlahisang skew. Bakeng sa PCB e nang le matla a holimo, kenyelletsa kutlo ea hona joale ea leoto ka leoto ho ntša mpa ka asymmetry pele ho ts'oaroa ka ho felletseng hoa hlaha.

5. Na PCB e le 'ngoe ea inverter e ka tšehetsa tšebetso ea grid-tie le off-grid (hybrid)?

E, empa e hloka taolo ea modular: tsamaiso ea lihokelo tsa bidirectional DC, tlhahlobo ea lihlekehleke (ROCOF / voltage phase shift), taolo ea phetisetso e se nang moeli, sethala se eketsehileng sa phetisetso kapa sethala sa phetisetso e tiileng, liparamente tsa "filter" tse feto-fetohang le mochini o atolositsoeng oa boemo ba ts'ireletso ea firmware. Tlhokomelo ea ho itšehla thajana le sebopeho sa betri sa BMS se tlameha ho hokahana kapele. Meaho e itokiselitseng e eketsa palo ea PCB le matrix a liteko, empa e sebelisa matla a mantlha le liqeto tsa moralo oa liheke ho tsoa ho li-platform tsa PCB tse fetolelang matla.

qotsa hanghang

Mokhoa oa ho fumana quote bakeng sa li-PCB

E re re u tsamaise tlhahlobo ea DFM/DFA 'me re khutlele ho uena ka tlaleho.

U ka kenya lifaele tsa hau ka mokhoa o sireletsehileng ka webosaete ea rona.

Re hloka lintlha tse latelang ho u fa quote:

    • Gerber, ODB++, kapa .pcb, spec.
    • Lethathamo la BOM haeba o hloka kopano
    • bongata
    • Nako ea ho fetoha

Ntle le tlhahiso ea PCB, re fana ka mefuta e fapaneng ea lits'ebeletso tsa elektroniki, ho kenyeletsoa moralo oa PCB, PCBA (Printed Circuit Board Assembly), le tharollo ea turnkey. Hore na o hloka thuso ka prototyping, netefatso ea moralo, ho fumana likarolo, kapa tlhahiso e ngata, re fana ka ts'ehetso ea ho qetela ho netefatsa katleho ea morero oa hau. Bakeng sa litšebeletso tsa PCBA, ka kopo fana ka BOM ea hau (Bill of Materials) le litaelo tse itseng tsa kopano. Re boetse re fana ka tlhahlobo ea DFM/DFA ho ntlafatsa meralo ea hau bakeng sa tlhahiso le kopano, ho netefatsa ts'ebetso ea tlhahiso e boreleli.






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