High-Performance Digital Power Meter: Anti-Interference Solution for 3-Phase System Monitoring Nahiyar Digital na Meter na Tsarin Karamin Yawan Gidaje: Ƙwarewa na Bayanai Don Jin Hausa na Tattalin Yanki na 3-Phase

I. Gárá​

Wani ƙarin yaɗa da yaɗe-da chip mai karfi na kontrola da kuma tashar maimakonai na gari a kan abin da ke yi, don in hana shiga, ɗauke, nuna, da kuma fada masu paramita na grid na tsakiyar jirgin sama ta hanyar tsarin mai karfi, wanda yake da shawarar kuɗi ga cin bayanai na tsarin jirgin sama a baya. Idan an ba da damar duka, wannan digital meter na jirgin sama yana ɗauka masu matsaloli da suka haɗa da nau'o'in teknologi da suka haɗa da zuwa ƙarfafa aiki da kuma zama da biyan zamani.

​II. Tsarin Jami'a da Aikin Meter​

​Asasen Tsari​

An yi amfani da tsarin mai kyau na "chip na kontrola a cikin, maimakonai masu gari suna ƙara" don in iya ƙara aikinsu a cikin shiga, ɗauke, nuna, da kuma fada bayanai.

​Aikin Maimakonai Mai Muhimmanci​

1. ​Maimakonar Chip na Kontrola​
• Alama: Chip MSP430F5438A
• Aikin Mai Ƙara: AD conversion circuit, high-frequency crystal oscillator circuit, low-frequency crystal oscillator circuit
• Aikin Mai Yawa: Kontrola maimakonai na system da ɗauke waɗannan bayanai
• Na'urar Tushen: An haɗa da takarda a cikin low-frequency crystal oscillator circuit; main frequency input an kara zuwa 32768Hz low-frequency crystal.
2. ​Maimakonar Shiga Bayanai​
• Shiga Voltage: Three-phase grid voltage attenuation voltage divider circuit
• Shiga Current: Three-phase current transformers
• Tsarin Signal: Operational amplifier circuit (amplification and level conversion)
• Kungiyoyi Channel: Voltage analog sampling channels, current analog sampling channels
• Aika: In hana shiga bayanai na three-phase voltage da current da ma'adani.
3. ​Maimakonai Masu Farko​
• Real-Time Clock (RTC): Yana ba da zamanin mai karfi, don in iya ƙara tsari a bayanai.
• Internal Information Memory: Yana zaɓi paramita na meter da kuma bayanai, yana ba da shawarar ƙara
• Maimakonar Nuna Control: Yana nuna paramita na grid, tare da na'urar tushen
• Interface Communication: RS485 interface, yana ba da shawarar kula da computer masu fina-finan bayanai don fada bayanai a baya
• Maimakonar Power Supply: Multi-level power output
• 5V Output: Don maimakonar shiga bayanai
• 3.3V Output: Don chip na kontrola, RTC, memory, da maimakonar nuna control
• Isolated 5V Output: Don interface communication

​III. Ƙaramin Ayyukan Teknologi da Faɗilan​

1. ​Sabbin Matsalolin Neutral Line​
• ​Matsalolin Daban-Daban​
• An bukata neutral line zuwa 4 resistors da adadin total resistance 1.496MΩ.
• Neutral line conductor yana iya ƙunshi waɗannan idan an haɗa da floating.
• An samu karfi a nuna three-phase voltage idan ba a yi voltage ba.
• Bayanai ba su da ƙarfi, wanda yake da shawarar ƙara da duka.
• ​Na'uran Tushen​
• Neutral line na channel analog sampling an kara zuwa ground na system.
• ​Faɗilai Teknologi​
• An ƙara sabbin matsalolin neutral line.
• An ƙasa 4 resistors na neutral line, wanda yake da shawarar tsarin.
• An ƙara matsala a yi da shugaban da zuwa ƙarfi.
2. ​Na'uran Tushen Anti-EFT​
• ​Na'ura Tushen​
• An kara anti-EFT module a nan a cikin maimakonar nuna control da kuma chip na kontrola.
• Module an haɗa da 4 capacitors (C1-C4), wadanda suke haɗa da signal lines.
• Capacitor Specifications: C1, C3, C4 su ne 10000pF; C2 ne 3300pF.
• Lafiya ta capacitor an kara zuwa signal line, mafi ƙarfi an kara zuwa ground.
• ​Faɗilai Teknologi​
• Yana ba da shawarar daɗi da shugaba zuwa har zuwa signal lines.
• An ƙara 4kV EFT immunity test.
• Yana da shawarar daɗi da shugaba zuwa EFT.
3. ​Na'uran Tushen Anti-ESD da Karkashin Zamanin Crystal Oscillator​
• ​Crystal Oscillator Configuration​
• Main frequency input na chip na kontrola an kara zuwa 32768Hz low-frequency crystal.
• Chip internal low-frequency oscillator circuit an haɗa da compensation capacitors.
• ​Uku Faɗilai​
• ESD Performance: An ƙara 15kV air discharge ESD test, yana yi aiki da ƙarfi.
• Zamanin Clock: Yana ƙara seconds clock through frequency division, don in ƙara ADC sampling clock stability.
• Circuit Simplification: An ƙasa external AD conversion circuit da kuma 2 crystal oscillator compensation capacitors.

​IV. Ƙarfin Jami'a na Teknologi​

• ​Amfani Da Aikin​
• An ƙara shiga da ɗauke bayanai na three-phase grid voltage da current signals da ƙarfi.
• Function na nuna bayanai a baya.
• An fada bayanai a baya zuwa computer masu fina-finan bayanai ta hanyar interface RS485.
• An ƙara shawarar cin bayanai na tsarin jirgin sama a baya.
• ​Ƙaramin Ƙarfi​
• An ƙara uku masu muhimmanci: neutral line interference, electrostatic interference, da EFT interference.
• An ƙara damar shiga da ɗauke bayanai da ƙarfi.
• An ƙara ƙarfi na aiki na zarrafa.
• ​Ƙaramin Zamani​
• An ƙasa mafi ƙarfi resistors, capacitors, da kuma external AD conversion circuit.
• An ƙara tsarin aiki, an ƙara matsala a yi da shugaban da zuwa ƙarfi.
• An ƙara zuwa ƙarfi, wanda yake da shawarar amfani a tsarin engineering.

​V. Amfani Da Rimin Zarrafa​

Wani ƙarin digital meter solution, ta hanyar na'uran tushen tsarin da kuma teknologi na ƙara shugaba, yana ƙara ƙarfi da ƙarfi na aiki na ƙara shiga da ɗauke paramita na jirgin sama. Ba haka, an ƙara tsari na produktu, wanda yake da shawarar ba da shugaban da zuwa a tsarin fina-finan bayanai na jirgin sama, yana da shawarar amfani a cikin ƙarin fina-finan bayanai na jirgin sama.