Ƙananan tambayoyi goma game da sarrafa mota

Manyan Tambayoyi Goma Game da Kula da Motoci

Fasahar sarrafa motoci ta ta'allaka ne a tsakiyar keɓancewar masana'antu, motocin lantarki, tsarin gida mai wayo, da ƙari. Ga injiniyoyi da masu sha'awar fasaha iri ɗaya, fahimtar ƙa'idodinsa da ƙalubalensa yana da mahimmanci.

Tambaya 1: Menene ainihin manufar sarrafa mota?

Ma'anar sarrafa mota shine daidaita ƙarfin lantarki, halin yanzu, ko mitar don cimma abin da ake so a cikin sauri, juzu'i, ko matsayi. Mahimman manufofin sun haɗa da:

• Amsa mai inganci(misali, sarrafa haɗin gwiwa a cikin robobin masana'antu)

• Aiki mai inganci(misali, inganta amfani da wutar lantarki a cikin EVs)

• Ƙin rashin damuwa mai ƙarfi(misali, daidaita jirage marasa matuƙa a cikin yanayin iska)

Tambaya 2: Me yasa kulawar madauki ya zama dole?

Ikon buɗaɗɗen madauki (misali, kunna mota kai tsaye) mai sauƙi ne amma maras kyau: canjin kaya kwatsam ko hargitsin muhalli yana haifar da saurin gudu. Ikon rufaffiyar madauki yana amfani da martani na ainihi (misali, sigina na ɓoye) don gyara kurakurai. Aikace-aikace sun haɗa da:

• Tsarin Servo yana buƙatar daidaiton matsayi na ± 0.01mm

• Daidaitaccen jeri bene na lif

Tambaya 3: Ta yaya PWM ke ba da damar daidaita saurin gudu?

Modulation Width Pulse (PWM) yana daidaita matsakaicin ƙarfin lantarki ta hanyar kunna/kashe wuta da sauri. Misali:

• Zagayen aiki na 50% yana ba da 50% na ƙarfin lantarki

• Matsakaicin sauyawa mafi girma (misali, 20kHz) yana rage girgizar motsi
  Abũbuwan amfãni: Ƙananan asarar da'ira, dacewa tare da masu kula da dijital (misali, MCUs).

Tambaya 4: Me yasa sarrafa vector (FOC) ya fi inganci?

Hanyoyi na al'ada (misali, sarrafa V/F) sunyi watsi da haɗin kai tsakanin filayen maganadisu da karfin juyi. Ikon Madaidaitan Filin (FOC) yana ƙaddamar da waɗannan ta hanyar amfani da sauye-sauye na daidaitawa (Clarke-Park yana canzawa), yana raba igiyoyin igiyoyi guda uku zuwatashin hankalikumakarfin juyiaka gyara. Wannan yana kwaikwayi ingancin injin DC, yana haɓaka aiki har zuwa 15% (misali, a cikin masu matsa lamba AC masu canzawa).

Tambaya ta 5: Ta yaya kula da mara hankali ke kimanta matsayi na rotor?

Ana amfani da fasahohin marasa hankalimasu lura da baya-EMFkoallurar sigina mai girmadon kwatanta matsayi na rotor, manufa don yanayin farashi ko babban abin dogaro:

• Drone ESCs ( guje wa gazawar firikwensin )

• Magoya bayan gida (rage farashin kayan aiki)
  Cinikin-kashe: Ƙarƙashin ƙwaƙƙwaran aiki da ƙaƙƙarfan hanyoyin tushen firikwensin.

Tambaya 6: Me yasa farawar mota ke karuwa a halin yanzu?

A tsaye, baya-EMF sifili ne, yana haifar da "kulle-kulle halin yanzu" (5-7× rated current). Magani sun haɗa da:

• Da'irar farawa mai laushi(ƙarar ƙarfin lantarki a hankali)

• Tauraro-delta sauyawa(rage karfin wutar lantarki na farko)

Tambaya 7: Yadda za a kashe motsin motsi da hayaniya?

Dalilai na yau da kullun sun haɗa da haɓakar injina da daidaitawar lantarki. Dabarun ragewa:

• Maƙarƙashiyar masu jituwa (misali, SVPWM tare da ingantattun mitoci)

• Gujewa yankunan resonance na inji (ta hanyar duba mitar)

• Algorithms na damping mai aiki (misali, sarrafa tsinkaya samfurin)

Tambaya ta 8: Me yasa kula da zafi ke da mahimmanci?

Asarar mota (tagulla, baƙin ƙarfe) yana haifar da zafi, yana yin haɗari na lalata magnet na dindindin ko lalatawar rufi. Abubuwan ƙira:

• Na'urori masu auna zafin jiki (misali, NTC thermistors) don saka idanu na ainihi

• Tsarin sanyaya (iska / sanyaya ruwa, bututu masu zafi)

Tambaya ta 9: Yaya za a zaɓi guntun sarrafa motoci?

• MCUs: Don ƙananan ayyuka masu rikitarwa (misali, jerin STM32)

• DSPs: Ƙididdigar sauri (misali, TI C2000)

• FPGAs: Buƙatun rashin jinkiri mara nauyi (misali, tsarin motoci da yawa)

Tambaya 10: Menene na gaba don fasahar sarrafa motoci?

• AI hadewa: Cibiyoyin jijiyoyi masu maye gurbin gyaran PID na hannu

• SiC na'urorin: Haɓaka ingantaccen juzu'i mai ƙarfi

• Digital tagwaye: Haɓaka ci gaba ta hanyar ƙirar ƙira