Masu samar da na'urar amsa makamashi suna tunatar da ku cewa saboda hadadden halayen watsa wutar lantarki, injinan lantarki akai-akai suna aiki a gaba da baya, sau da yawa a cikin yanayin aiki mai yawa da ci gaba da canzawa tsakanin lantarki da birki; Amincinta da amincinsa ma suna da mahimmanci. Fasahar jujjuyawar mitar motocin AC ta ƙara haɓaka, kuma amfani da masu canza mitar don ka'idojin saurin motsi na AC asynchronous ya zama mafi mahimmancin fasahar ceton makamashi don daidaita saurin mota.
Ka'idar saurin sadarwa ta samo asali daga ka'idojin saurin wutar lantarki na stator, ka'idojin saurin gudu na rotor, ka'idojin saurin zamewa na electromagnetic a cikin shekarun 1970 zuwa ka'idojin saurin mitar mai canzawa a cikin 1980s, kuma fasahohi daban-daban sun kai matakin aiki. Tare da haɓaka aminci da ƙananan farashin ƙa'idar saurin AC, maye gurbin tsarin saurin DC ya zama yanayin da babu makawa.
1. Mai sauya juzu'i da kiyaye makamashi
Lokacin daidaita saurin da ke ƙasa da ainihin mitar injin asynchronous, hanyar sarrafawa tare da ƙimar mitar wutar lantarki akai-akai da diyya na juzu'in wutar lantarki na stator yawanci ana karɓa; Idan an daidaita saurin sama da mahimmancin mitar, ana ɗaukar hanyar sarrafa madaurin wutar lantarki da mitar mai canzawa. Ta hanyar haɗa waɗannan yanayi guda biyu na sama, ana iya samun madaidaicin ƙarfin lantarki da halayen sarrafa saurin mitar mitoci na asynchronous. Daidai da DIT algorithm, bisa ga ka'idar daidaitawa, idan x (n) ya bazu zuwa rukuni biyu a cikin yanki na lokaci, to a cikin yankin mita, X (k) zai samar da ƙungiyoyi masu ban sha'awa har ma da samfurori, suna samar da wani tsarin FFT da aka saba amfani da shi wanda ake kira Frequency-domain Sampling FFT (DIF-FFT) algorithm. Kamar yadda Sande da Turky suka fara tsara shi, ana kuma san shi da Sande Turky algorithm.
An ƙera da'irar birki a cikin mitar duniya don saduwa da buƙatun birki na injuna asynchronous. A cikin tsarin tuƙi mai canzawa, don rage gudu da dakatar da motar asynchronous, hanyar sannu a hankali za a iya amfani da hanyar rage yawan fitarwa na mai sauya mitar duniya don rage saurin daidaitawar injin asynchronous, ta haka ne a cimma manufar rage motsin motar. A yayin aiwatar da aikin rage motsin motar asynchronous, saboda saurin daidaitawa ya kasance ƙasa da ainihin saurin injin ɗin asynchronous, lokaci na juzu'i na yanzu za a juya shi, yana haifar da injin asynchronous don haifar da juzu'in birki, wato, a cikin yanayin sake fasalin birki. Don manyan masu jujjuya mitoci na duniya, don adana makamashi, ana amfani da naúrar sabunta wutar gabaɗaya don ciyar da makamashin da ke sama zuwa wutar lantarki. Don ƙananan masu jujjuya mitar duniya, yawanci ana amfani da da'irar birki don cinye ra'ayin makamashi daga injin asynchronous a cikin da'irar birki. A cikin aikin injiniya, maganin sabunta ƙarfin birki gabaɗaya ya haɗa da hanyoyi kamar ajiya, amsawa ga grid wutar lantarki, da fitarwar juriya, ya danganta da iyawa da yanayin aikace-aikacen masu sauya mitar gabaɗaya.
2. Aikace-aikacen Fasahar Sarrafa Saurin Sauri Mai Sauƙi a cikin Kula da Automation na Lantarki
2.1. Halayen Sarrafa Gudun Saurin Mita
Duk na'urorin Cyclone II suna amfani da wafers na 300mm kuma an ƙera su bisa ga TSMC 90nm, ƙananan matakan K don tabbatar da babban sauri da ƙananan farashi. Saboda amfani da ƙananan yankuna na silicon, na'urori na Cyclone II na iya tallafawa tsarin dijital mai rikitarwa tare da guntu guda ɗaya kawai, a farashi daidai da keɓaɓɓen da'irar haɗin kai. Babban aiki masu jujjuya mitoci na duniya suna da tsarin kayan masarufi da yawa don saduwa da buƙatun injiniya daban-daban: masu canza mitar mitoci masu zaman kansu, masu sauya mitar bas na DC gama-gari, da masu sauya mitar mitar tare da raka'o'in amsa kuzari. Mai canza mitar mai zaman kansa nau'in mai sauya mitar mitar ne wanda ke sanya naúrar gyarawa da naúrar inverter a cikin casing guda ɗaya. A halin yanzu ita ce mai sauya mitar da aka fi amfani da ita kuma gabaɗaya tana tuka motar lantarki ɗaya kawai, ana amfani da ita don nauyin masana'antu gabaɗaya. Hanyar daidaitawa da aka yi amfani da ita ita ce haɗin JTAG da AS, don haka dole ne tsarin daidaitawa ya dace da buƙatun daidaitawar AS da JTAG. Guntuwar daidaitawa tana ɗaukar EPCS1. Dangane da takamaiman hanyar haɗin kai da halayen fil na hanyar daidaitawa da aka ambata a sama. Lokacin tuki lodi kamar lif, ɗagawa, da injinan jujjuyawa masu jujjuyawa tare da manyan masu canza mitar duniya, ana buƙatar aiki huɗu na huɗu, don haka dole ne a saita sashin martani na makamashi. Ayyukan naúrar amsawar makamashi shine mayar da makamashin da aka samar a lokacin birki na motar lantarki zuwa grid ɗin wuta.
2.2. Aikace-aikacen Fasahar Kula da Saurin Mita Sauri a cikin Sarrafa Wutar Lantarki na Masana'antu
(1) Naúrar ƙirar mota mai daidaitawa. Ayyukan naúrar ƙirar motar mai daidaitawa ita ce gano ainihin ma'auni na motar ta atomatik ta gano ƙarfin lantarki da shigarwar yanzu zuwa motar. Wannan samfurin motar maɓalli ne na sarrafa juzu'i kai tsaye. Don yawancin aikace-aikacen masana'antu, idan daidaiton sarrafa saurin ya fi 0.5%, ana iya amfani da martanin saurin rufaffiyar madauki.
(2) Kwatanta karfin juyi da kwatancen maganadisu. Ayyukan wannan nau'in kwatancen shine kwatanta ƙimar amsawa tare da ƙimar nunin sa kowane 20ms, da fitar da yanayin juzu'i ko filin maganadisu ta hanyar amfani da mai sarrafa mahalli mai maki biyu.
(3) Mai zaɓin inganta bugun jini. Mun zaɓi guntu Cyclone II EP2C5Q208C8 don aiwatar da bayanai, sannan mun tsara aiwatar da FPGA na tushen siginar don daidaitawar OFDM. Mun rubuta da'irar da ke kunshe da nau'o'i biyar, galibi suna aiwatar da taswirar taswira FFT, Saka prefix na cyclic, buffer module, da ayyukan D/A, an tsara tushen siginar OFDM, kuma an kwatanta ayyukan kowane module kuma an tabbatar da su. A ƙarshe, an kammala tushen siginar OFDM, gami da simulation na software da kuma tabbatar da kayan aikin FPGA. Saboda gagarumin bambancin ƙarfin ƙarfin lantarki, za su fuskanci ƙarfin lantarki marasa daidaituwa. Don haka, ana haɗa wutar lantarki mai daidaita resistor tare da ƙimar juriya daidai da kowane capacitor don kawar da tasirin saɓani. Domin hana cajin halin yanzu (tauraron halin yanzu) da ke gudana ta cikin capacitor daga kona da'irar gyarawa da haifar da wasu tasiri lokacin da aka kunna wutar, ana kuma ƙara matakan murkushe ƙarfin halin yanzu zuwa da'irar ajiya.
Kiyaye makamashi da rage yawan amfani sune hanyoyi masu mahimmanci don rage farashin samarwa, kuma rage farashin hanya ce mai inganci don haɓaka gasa samfurin. Bugu da ƙari, ƙara waɗannan nau'ikan kayan aiki, yana da mahimmanci don ci gaba da haɓaka ƙirar da aka kammala yayin aikin ƙira, ƙara haɓaka aiki da adana albarkatu, don cimma dukkan tsarin a cikin guntu na FPGA guda ɗaya, cimma mahimman tasirin ceton makamashi, da haɓaka yanayin tsari.