Ta yaya tsarin PLC da DCS ke ƙara inganci a cikin sabbin tsire-tsiren makamashi mai sabuntawa?
Atomatik na masana’antu yana canza yadda muke samar da makamashi mai tsafta. Wannan maƙala tana bincika rawar da Programmable Logic Controllers (PLC) da Distributed Control Systems (DCS) ke takawa a cikin gonakin iska, hasken rana, da ruwa. Za mu nazarci yadda waɗannan fasahohin ke ƙara inganci, rage tsayawar aiki, da daidaitawa da bukatun zamani na grid ta hanyar misalan aikace-aikace na gaskiya da ra’ayoyin masana.
Fahimtar ginshiƙi: PLC da DCS a cikin muhallin masana’antu
A duniyar atomatik na masana’antu, ginshiƙai biyu ne ke goyon bayan ayyukan zamani: PLC da DCS. Programmable Logic Controller (PLC) a zahiri kwamfutar masana’antu ce mai ƙarfi. Ta fi ƙwarewa a sarrafa ayyuka dabam-dabam (discrete control), tana aiwatar da takamaiman ayyukan mantiki kamar kunna mota ko buɗe bawul bisa bayanan da na’urorin auna (sensors) suka bayar. Muna yawan amfani da PLC don injunan da ke bukatar saurin aiki mai maimaituwa.
Akasin haka, Distributed Control System (DCS) an ƙera ta ne don matakai masu rikitarwa kuma masu ci gaba (continuous processes). Maimakon kwamfuta guda ɗaya a tsakiya, DCS tana rarraba ikon sarrafawa a duk tsire-tsiren. Wannan tsari ya fi dacewa da gudanar da manyan ayyuka inda dole a daidaita canje-canje da yawa a lokaci guda, kamar zafin jiki da matsin lamba. Saboda haka, yawan girma da rikitarwar kayan aikin makamashi mai sabuntawa da kake gudanarwa ne yawanci ke ƙayyade ko za a zaɓi PLC ko DCS.
Aikace-aikacen PLC: Daidaitaccen sarrafawa don gonakin iska da hasken rana
PLCs su ne “dokunan aiki” na kowace na’urar makamashi mai sabuntawa dabam. Ka ɗauki turbin iska na zamani: PLC ce ke sarrafa duk tsarin aikin. A koda yaushe tana lura da saurin iska da shugabancinta ta anemometers. Idan saurin iska ya kai matakin amfani, PLC ɗin tana fara tsarin kunna na’urar, tana gyara karkatar (pitch) na fanfofan iska a hankali don kama makamashi mafi yawa ba tare da wahalar da tsarin tuƙi ba. Haka kuma, idan na’urori masu auna sigina suka gano girgiza mai yawa ko rashin kwanciyar grid, PLC ɗin tana aiwatar da rufe tsarin cikin tsari don kare kayan aiki.
A gonakin hasken rana na photovoltaic (PV), PLCs ne ke sarrafa tsarin bibiyar rana (tracking systems). Suna nazarin bayanan kaifin hasken rana na ainihi (real-time solar irradiance) don daidaita karkatar da faranti a sepanjang rana. Wannan daidaito yana ƙara fallasa su ga haske, kuma bayanai suna nuna cewa masu bin rana da PLC ke sarrafawa na iya ƙara yawan makamashin da ake kamawa har zuwa 25% idan aka kwatanta da tsarin faranti masu karkata ɗaya kawai (fixed-tilt).
Haɗa DCS: Tsakiyar tsarin gudanarwa don manyan tsire-tsire
Yayin da PLCs ke kula da sassa ɗaya-ɗaya, DCS kuma tana aikin tsarin jijiyoyin tsakiya na dukan facility. Don tsire-tsiren concentrated solar power (CSP) ko babban madatsar ruwa ta wutar lantarki, DCS ba za a iya yi ba sai da ita. Tana daidaita mu’amala tsakanin na’urorin samar da wuta da yawa, tashoshin wutar lantarki, da tsarin sarrafa ruwa. Misali, a wata madatsar ruwa, DCS tana lura da matakin tafki, tana tsara jadawalin sakin ruwa, kuma tana daidaita aiki tsakanin tarin injinan turbin da janareto don cika bukatar grid.
Bugu da ƙari, dandamalin DCS na zamani suna haɗuwa cikin sauƙi da tsarin kasuwanci. Suna ba ma’aikata damar ganin cikakken aikin tsire-tsiren, wanda ke ba su ikon yanke shawara bisa bayanai (data-driven decisions). Wannan tsakiya na bayanai yana da muhimmanci wajen kula da kayan aiki kafin su lalace (predictive maintenance); tsarin zai iya nazarin sauye-sauyen da ke cikin dubban bayanai don gano abin da ya saba da k’a’ida, ta haka yana hana tsayawar aiki mai tsada kafin su faru.
Aikace-aikacen zahiri: Jagorar shigar da tsarin sarrafawa na PLC
Shigar da PLC don wani aikin makamashi mai sabuntawa na buƙatar tsari mai bin matakai. Ga takaitacciyar jagorar shigarwa bisa mafi kyawun hanyoyin masana’antu:
- Tsara tsarin da fayyace I/O: Da fari, zana taswirar dukkan na’urorin fili—na’urorin auna sigina (sensors), masu motsa aiki (actuators), da breakers. Ka tantance adadin daidaitaccen Input/Output (I/O) da nau’o’insu (analog, digital) da ake buƙata ga turbin ɗinka ko inverter na hasken rana.
- Zaɓen kayan aiki da tsara allon panel: Zaɓi PLC mai ƙarfin jure yanayi mai tsanani (misali, zafi ko sanyi a gonar hasken rana ta hamada). Ka tsara kwandon sarrafawa (control panel) ta yadda zafi zai rika fita lafiya kuma a samu sauƙin samun dama wajen aikin wayoyi.
- Ci gaba da mantiki da gwaji ta kwaikwayo: Rubuta lambar sarrafawa da ladder logic ko structured text. Kafin ka tura shi aiki, ka yi kwaikwayon (simulation) na lambar don tabbatar da tsaron tsarin kunnawa da tsarin dakatar da gaggawa.
- Wayoyin fili da haɗawa: A hankali ka kammala haɗa dukkan wayoyin fili zuwa cikin modules na PLC I/O. Ka yi amfani da kariya (shielding) mai kyau ga siginar analog don hana tsangwama na lantarki daga layukan wuta.
- Kaddamar da tsarin da duba loops: Ka kunna tsarin ka yi duba maki-zuwa-maki (point-to-point). Ka tabbatar cewa kowace shigar sensor tana bayyana daidai a cikin PLC kuma kowace umarnin fita (output) tana motsa na’urar da ta dace.
- Haɗa HMI da gwadawa: Haɗa PLC da Human-Machine Interface (HMI). Ka gwada maɓallan sarrafawar mai aiki da sanarwar ƙarar hankali (alarms) don tabbatar da cewa tsarin yana martani yadda aka tsara.
Binciken aiki: Ƙara fitarwa a gonar hasken rana ta “Sun Peak”
Wata gonar hasken rana ta MW 50 a Kudancin California ta fuskanci kalubale game da rashin ingancin inverter lokacin gaggawar rufewar gajimare. Tsarin da ake da shi ya kasance mai jinkiri wajen amsawa, abin da ya jawo canjin ƙarfin lantarki. Mun haɗa PLC mai saurin aiki don sarrafa kowace rukuni na inverter sannan muka haɗa su zuwa DCS ɗin tsakiya don sa ido a kan dukan gonar.
An shirya PLCs ɗin su daidaita nauyin inverter cikin milisakan bisa bayanan na’urorin auna kaifin hasken rana. A lokaci guda, DCS ta inganta kwararar wutar reactive zuwa tashar wuta. Sakamakon haka, gonar ta bayyana raguwa da 12% a harmonic distortion da kuma ƙaruwa da 5% a yawan makamashin shekara-shekara ta hanyar kama makamashi a lokutan canjin yanayi da a baya ake ɓatawa.
Haɗuwar fasaha: AI, IoT, da makomar tsarin sarrafawa
Fagen atomatik na masana’antu yana sauyawa da sauri. Muna ganin haɗuwa inda PLCs da DCSs na gargajiya suke samun ƙarin ƙarfi da edge computing da Artificial Intelligence (AI). A ganina, mafi girman sauyi shi ne yadda “predictive analytics” ke zama wani abu na yau da kullum. Maimakon kawai a jira kuskure ya faru a dauki mataki, tsarin sarrafawa yanzu suna amfani da samfuran koyo na na’ura (machine learning) don hango lalacewar sassa.
Misali, na’urorin IoT da ke kan gearbox na turbin iska na iya aikawa da bayanan girgiza zuwa gajimare (cloud). Algorithms na AI suna nazarin wannan bayanin suna kwatanta shi da bayanan gazawar baya. Daga bisani DCS tana karɓar shawara don gyara jadawalin shafawa mai (lubrication) kafin lalacewa ta faru. Wannan hanyar rigakafi ba kawai tana tsawaita rayuwar kayan aiki ba, har ma tana rage kuɗin gyara sosai a wuraren da ke da nisa.
Kokarin aiwatarwa a wurare masu nisa
Duk da fa’idodi masu bayyani, aiwatar da waɗannan tsarin ba ya rasa ƙalubale. Yawancin wuraren makamashi mai sabuntawa suna cikin wurare masu tsanani kuma masu nisa—irin su gonakin iska a teku ko gonakin hasken rana a hamada. Wannan nisa yana sa goyon bayan fasaha a wurin ya zama mai tsada kuma mai wahalar tsarawa. Saboda haka, muna ba da shawarar saka hannun jari a matakan tsaron yanar gizo (cybersecurity) masu ƙarfi da ƙwarewar bincike daga nesa tun daga farko.
Wani ƙalubale na yau da kullum shi ne haɗa sabbin tsarin PLC/DCS da tsoffin kayan aikin “brownfield”. Tsofaffin na’urori galibi suna amfani da yarukan sadarwa na mallaka (proprietary protocols). Don cike wannan gibi, muna ba da shawarar amfani da na’urorin canza yarukan sadarwa (protocol converters) da yin cikakken binciken injiniya kafin aiki don zana duk hanyoyin sadarwa tun kafin shigarwa. Wannan shirya tun da wuri na iya rage lokacin haɗa tsarin har zuwa 30%.
Hasashen masana: Hanyar zuwa grid na makamashi masu wayo
Idan muka dubi gaba, rawar fasahar PLC da DCS za ta ƙara zama muhimmi. Yayin da yawan makamashi mai sabuntawa ke ƙaruwa a grid, ana bukatar karin kwanciyar hankali da hidimomin taimako daga waɗannan tsire-tsire. Tsarin sarrafawa na gaba zai buƙaci iya gudanar da ayyuka masu rikitarwa irin su daidaita “virtual power plant (VPP)”, inda ake tara ƙananan hanyoyin samar da makamashi a matsayin tsire-tsire ɗaya.
Shawarata ga masu gudanar da tsire-tsire ita ce su fifita dandamalin atomatik masu sassauci kuma masu iya faɗaɗawa. Zaɓar tsarin da zai iya sauƙin haɗa sabbin ƙa’idojin sadarwa (kamar IEC 61850) da aikace-aikacen software masu ci gaba zai tabbatar da cewa facility ɗinku ta ci gaba da zama mai yin gasa. A ƙarshe, haɗin kai tsakanin PLCs masu ƙarfi, DCS mai cikakken iko, da software mai wayo shi ne ginshiƙin makomar makamashi mai ɗorewa kuma mai kawo riba.
Tambayoyi da ake yawan yi (FAQs)
- Menene babban ribar kuɗi na amfani da DCS a madatsar ruwa ta wutar lantarki? Babban amfanin kuɗi yana fitowa ne daga ingantaccen sarrafa ruwa da kuma kulawa da lalacewa tun kafin ta faru (predictive maintenance). Ta hanyar daidaita aikin turbin daidai, DCS na iya ƙara ingancin jujjuyar ruwa zuwa wuta (water-to-wire efficiency) da kashi 2-3%, wanda a cikin shekara zai haifar da ƙarin megawatt-hours ba tare da ƙarin kuɗin mai ba.
- Shin PLC guda ɗaya na iya sarrafa dukan gonar iska? A mafi yawan lokuta, a’a. Kowace turbin tana da nata PLC don tsaron gida da sarrafawa. Tsarin SCADA ko DCS na tsakiya ne daga nan ke sadarwa da dukkan PLCs na turbin domin daidaita fitar gonar gabaɗaya da bin ƙa’idojin grid.
- Har yaushe ake ɗauka ana shigar da DCS a gonar hasken rana matsakaiciyar girma? Lokacin aikin yana bambanta gwargwadon rikitarwa, amma yawanci daga aikin zane na injiniya zuwa kammala kaddamarwa gaba ɗaya na iya ɗaukar watanni 6 zuwa 9. Wannan ya haɗa da daidaita software, wayoyin I/O, da gwaje-gwaje masu yawa na loops don tabbatar da amincin tsarin.
