Ha litsamaiso tsa polokelo ea matla, libeteri tsa lithium, litharollo tsa matla a letsatsi, le mahlale a othomathike a indasteri li ntse li tsoela pele ho fetoha, puisano e tšepahalang pakeng tsa lisebelisoa e se e le ea bohlokoa ho feta leha e le neng pele. Tse peli tsa liprothokholi tsa puisano tse sebelisoang haholo holitsamaiso tsa taolo ea betri (BMS)le lits'ebetso tsa polokelo ea matla ke CAN Bus le RS485.
Haeba o kgetha sistimi ya betri, inverter, kapa tharollo ya polokelo ya matla, ho utlwisisa phapang pakeng tsa CAN le RS485 ho ka o thusa ho fihlella ho tsamaellana hantle, ho beha leihlo le tshebetso ya sistimi.
Sehloohong sena, re tla bapisa CAN le RS485, re hlalose hore na li sebetsa joang, 'me re u thuse ho fumana hore na ke protocol efe ea puisano e molemohali bakeng sa kopo ea hau.
Bese ea CAN ke Eng?
CAN (Marang-rang a Sebaka sa Taolo)ke protocol ea puisano e qapiloeng qalong ke Bosch bakeng saditshebediso tsa dikoloi. E dumella disebediswa tse ngata ho buisana ka netweke e arolelanwang ntle le ho hloka khomphutha e amohelang.
Kajeno, CAN Bus e sebelisoa haholo ho:
- ⭐Sistimi ea betri ea lithium
- ⭐Sistimi ea polokelo ea matla a letsatsi
- ⭐Likoloi tsa motlakase (li-EV)
- ⭐Boiketsetso ba indasteri
- ⭐Sistimi e bohlale ea taolo ea matla
Puisano ea CAN e nolofalletsa phapanyetsano ea data ea nako ea sebele lipakeng tsa libeteri, li-inverter, li-charger le li-platform tsa ho beha leihlo.
Melemo ea bese ea CAN:
- √Lebelo le potlakileng la puisano
- √Tšepahala e phahameng
- √Ho lemoha le ho lokisa liphoso hantle haholo
- √E tšehetsa marang-rang a rarahaneng a lisebelisoa tse ngata
- √ Phetiso ea data ea nako ea sebele
RS485 ke eng?
RS485 ke tekanyetso ea puisano e latellanang e etselitsoeng puisano ea libaka tse telele le ea indasteri. E lumella lisebelisoa tse ngata ho buisana ka para e le 'ngoe ea lithapo tse sothehileng.
RS485 e fumaneha hangata ho:
- ♦Mekhoa ea ho boloka matla a betri (BESS)
- ♦Li-inverter tsa letsatsi
- ♦Lisebelisoa tsa taolo ea indasteri
- ♦Limithara tse bohlale
- ♦Mekhoa ea ho iketsetsa meaho
Ho fapana le CAN, RS485 e shebana le puisano e tsitsitseng ya hole hole mme hangata e sebediswa le diprothokholo tse kang Modbus RTU.
Melemo ea RS485:
- ♠Sebaka se selelele sa phetiso
- ♠Theko e tlase ea ho kenya
- ♠Sebopeho se bonolo sa netweke
- ♠Khanyetso e matla lerata la motlakase
- ♠Ho kopanya habonolo le lisebelisoa tsa indasteri
CAN khahlanong le RS485: Liphapang tsa Bohlokoa
Tafole e latelang e totobatsa phapang e kholo lipakeng tsa CAN le RS485.
| Tšobotsi | Bese ea CAN | RS485 |
| Mofuta oa Puisano | Protokhole + Lera la 'Mele | Tekanyetso ea 'Mele oa' mele |
| Lebelo la Lintlha | Ho fihlela ho 1 Mbps (CAN ea setso) | Ka tloaelo 9.6 kbps – 10 Mbps |
| Ho Fumana Phoso | Ho sebetsana le liphoso tse tsoetseng pele tse hahiloeng kahare | Ho itshetlehile ka protocol ya lera le ka hodimo |
| Topology ea Marang-rang | Multi-master | Lekhoba la Master-slave le sebelisoang haholo |
| Tshebetso ea Nako ea Sebele | E babatsehang | E itekanetseng |
| Sebaka sa Puisano | Ho fihlela ho 40m ho 1 Mbps | Ho fihlela ho 1200m |
| Ho rarahana ha Sistimi | E phahameng | Ho bonolo haholoanyane |
| Tšepahala | Holimo Haholo | Holimo |
| Likopo tse Tloaelehileng | Li-EV, libeteri tsa lithium, BMS | Mekhoa ea letsatsi, taolo ea indasteri |
CAN khahlanong le RS485 ho Li-betri tsa Lithium
Bakeng salitsamaiso tsa polokelo ea matla a betri ea lithium,Puisano pakeng tsa sistimi ea taolo ea betri le inverter e bohlokoa haholo.
Puisano ea CAN bakeng sa Libetri
- ♥Hangata CAN e khethoa ha:
- ♥Ho hlokahala tlhokomelo ea betri ka nako ea sebele
- ♥Li-module tse ngata tsa betri li hokahane ka nako e le 'ngoe
- ♥Ho hlokahala kopanyo e tsoetseng pele ea inverter
- ♥Ho tšepahala ho phahameng ha sistimi hoa hlokahala
Mefuta e mengata e etellang pele ea li-inverter e tšehetsa puisano ea CAN hobane e fana ka tlhaiso-leseling e batsi ea betri, ho kenyeletsoa:
- ♣Boemo ba Tshireletso (SOC)
- ♣Boemo ba Bophelo (SOH)
- ♣Palo ea li-volts
- ♣Hona joale
- ♣Thempereichara
- ♣Boemo ba alamo
Puisano ea RS485 bakeng sa Libetri
- ▲RS485 e ntse e tumme hobane:
- ▲E tšehetsa ho sebetsa ha cable nako e telele
- ▲E lumellana haholo le lisebelisoa tsa indasteri
- ▲E fana ka litharollo tsa puisano tse theko e tlaase
- ▲E sebetsa hantle le litsamaiso tsa tlhokomelo tse thehiloeng ho Modbus
Bakeng sa ba bangatamehaho ea polokelo ea letsatsi ea bolulo le ea khoebo, RS485 e fana ka ts'ebetso e tsitsitseng le e tšepahalang ea puisano.
Ke efe e betere: CAN kapa RS485?
Ha ho na mohlōli ea feletseng. Khetho e nepahetseng e itšetlehile ka kopo ea hau e ikhethileng.
Khetha CAN Haeba:
- ♥O hloka phapanyetsano e potlakileng ea data
- ♥Sistimi ea hau e hloka tlhokomelo ea nako ea sebele
- ♥Libetri tse ngata li sebetsa ka nako e le 'ngoe
- ♥U sebelisa li-inverter tse tsoetseng pele tsa hybrid
Khetha RS485 Haeba:
- ♥Sebaka sa puisano se telele
- ♥Sistimi ea hau e sebelisa Modbus RTU
- ♥Bonolo le litšenyehelo ke lintho tsa bohlokoa
- ♥Ho kopanngoa ha indasteri hoa hlokahala
Litsamaisong tse ngata tsa polokelo ea matla tsa sejoale-joale, li-interface ka bobeli tsa puisano lia fanoa ho eketsa ho lumellana.
Hobaneng Melaoana ea Puisano e le ea Bohlokoa Polokelong ea Matla a Letsatsi
Puisano ea betri ha e sa le tšobotsi feela ea boikhethelo. E ama ka ho toba:
- ♠Bokgoni ba ho tjhaja
- ♠Bophelo ba betri
- ♠Polokeho ea sistimi
- ♠Bokhoni ba ho beha leihlo hole
- ♠Tsamaiso e bohlale ea matla
Protokhole ya puisano e kopantsweng hantle e thusa inverter le betri ho sebetsa mmoho ka katleho, e thusang basebedisi ho eketsa tshebediso ya matla a letsatsi le ho fokotsa ditjeo tsa tshebetso.
Libetri tsa Lithium tsa YouthPOWER li Tšehetsa CAN le RS485
At MATLA A BACHA, re utloisisa hore ho lumellana ha li-inverter ke taba e kholo bakeng sa ba kenyang matla a letsatsi, baabi le bahlahisi ba merero.
Libetri tsa rona tsa letsatsi tse tsoetseng pele tsa LiFePO4 li entsoe ka mekhoa ea puisano ea CAN Bus le RS485, e leng se netefatsang kopanyo e se nang sekoli le lihlahisoa tse ngata tse etellang pele tsa inverter lefatšeng ka bophara.
Melemo ea bohlokoa ea litharollo tsa betri ea YouthPOWER e kenyelletsa:
- ♣Theknoloji ea LiFePO4 e sebetsang hantle
- ♣Sistimi ea Taolo ea Libetri e bohlale (BMS)
Qetello
Ka bobeli CAN le RS485 li bapala karolo ea bohlokoa tsamaisong ea sejoale-joale ea polokelo ea matla le litsamaisong tsa betri ea lithium.
CAN e fana ka puisano e ntle ka nako ea sebele, tlhahlobo e tsoetseng pele, le ts'epo e ntle haholo, e leng se etsang hore e be e loketseng bakeng sa kopanyo e rarahaneng ea betri le inverter.
RS485 e fana ka puisano e hole, bonolo, le ts'ebeliso e ntle ea litšenyehelo, e leng se etsang hore e be tharollo e sebetsang bakeng sa lits'ebetso tse ngata tsa indasteri le tsa letsatsi.
Ha o kgetha tharollo ya polokelo ya matla a betri, kamehla etsa bonnete ba hore protocol ya puisano e tsamaellana le ditlhoko tsa inverter ya hao le tsa tlhokomelo. Ho kgetha betri e tshehetsang CAN le RS485 ho fana ka tenyetseho e hodimo le ho tsamaellana ho sa feleng.
Lipotso Tse Botsoang Khafetsa Mabapi le Puisano ea CAN Bus le RS485
P1. Na CAN le RS485 li ka sebelisoa ka nako e le 'ngoe tsamaisong e tšoanang ea betri?
A1: E. Tse ngata tsa sejoale-joalelitsamaiso tsa betri ea lithiumtšehetsa li-interface tsa puisano ka bobeli ka nako e le 'ngoe. Sena se lumella basebelisi ho hokela lisebelisoa tse fapaneng tsa ho beha leihlo, li-inverter, kapa litsamaiso tsa taolo ea eneji ho latela litlhoko tsa projeke.
P2. Na mokhoa oa puisano o ama ts'ebetso ea ho tjhaja betri?
A2: Ka tsela e sa tobang, e. Puisano e nepahetseng e dumella inverter le sistimi ya taolo ya betri ho fapanyetsana data ya tshebetso ka katleho, e leng se ka ntlafatsang ho nepahala ha ho tjhaja, mesebetsi ya tshireletso, le tshebetso ya sistimi ka kakaretso.
P3. Ke hobane'ng ha bahlahisi ba inverter ba khothaletsa mekhoa e itseng ea puisano?
A3: Moetsi e mong le e mong oa inverter o hlahisa software e ntlafalitsoeng bakeng sa mekhoa e itseng ea puisano. Ho sebelisa protocol e khothalelitsoeng ho netefatsa hore e lumellana hantle, data ea betri e nepahetseng haholoanyane, le likarolo tse ntlafalitsoeng tsa polokeho.
P4. Na ho hloleha ha puisano ho ka senya betri ea lithium?
A4: Hangata ho hloleha ha puisano ha ho senye betri ka boyona, empa ho ka fokotsa bokgoni ba ho beha leihlo, ho fokotsa bokgoni ba sistimi, kapa ho baka mekgwa ya tshireletso e amang tshebetso ya ho tjhaja le ho ntsha tjhaja.
P5. Nka netefatsa joang hore betri e lumellana le inverter ea ka?
A5: Kamehla hlahloba litlhaloso tsa protocol ea puisano ea betri le lethathamo la ho lumellana. Bahlahisi ba kang YouthPOWER ba fana ka tlhahisoleseling ea ho lumellana bakeng sa lihlahisoa tsa inverter tse tšehetsoeng le maemo a puisano pele ba kenya.