Abahlinzeki be-Oilfield converter frequency converter bakukhumbuza ukuthi iziguquli zefrikhwensi zisetshenziswe kakhulu ekukhiqizweni kwezimboni zamabhizinisi kanye nempilo yabantu yansuku zonke. Ukusetshenziswa okubanzi kweziguquli zemvamisa kungenxa yezimpawu zazo ezinhle kakhulu zokonga amandla kanye nezici zokulawula isivinini. Imikhiqizo yaseShayina kanye nokusetshenziswa kwamandla kuphakathi kwezinto eziphezulu kakhulu emhlabeni. Ukuze kuxazululwe inkinga yokusetshenziswa kwamandla kwemikhiqizo, ngaphezu kwezinye izindaba zobuchwepheshe ezihlobene ezidinga ukuthuthukiswa, ukulawulwa kwesivinini esishintshashintshayo sesiphenduke indlela ephumelelayo yokonga amandla nokuthuthukisa ikhwalithi yomkhiqizo.
Njengamanje, phakathi kwemishini yokumpompa esetshenziswa ezindaweni eziningi zikawoyela, iyunithi yokumpompa insimbi iyona esetshenziswa kakhulu futhi inenani elikhulu kakhulu. Ngakolunye uhlangothi, ukunyakaza kweyunithi yokumpompa i-beam kuwukuphakamisa ngokuphindaphindiwe phezulu naphansi, ukuphakamisa kanye ngokushaya ngakunye. Amandla ayo avela kumaslayidi ensimbi amabili anesisindo esikhulu esiqhutshwa injini kagesi. Lapho ama-slider ephakanyiswa, asebenza njengezintambo, athumele induku yokukhipha uwoyela emthonjeni. Lapho ama-slider ehliswa, induku yokukhipha uwoyela iphakanyiselwa esihlokweni somthombo ngamafutha. Ngenxa yejubane eliqhubekayo le-motor, umthwalo uyancipha ngesikhathi sokwehla kwezilayidi, futhi amandla akhiqizwa ukudonsa kwe-motor awakwazi ukukhangwa umthwalo. Nakanjani izothola isiteshi sokusetshenziswa kwamandla, okubangela injini ukuthi ingene esimweni sokukhiqiza amandla kabusha, iphendule amandla engeziwe kugridi yamandla, futhi ibangele ukwanda kwamandla kagesi wesifunda, okuzoba nomthelela nakanjani kuwo wonke amagridi kagesi, okuholela ekwehleni kwekhwalithi yokuphakelwa kwamandla kanye nesici samandla, nokubhekana nezinhlawulo ezivela ezinkampanini eziphakela amandla. Ingozi; Ukushaqeka kagesi okuphezulu njalo kungalimaza injini futhi kungabi nesivikelo esithembekile. Uma injini isilimele, ingaholela ekwehliseni ukusebenza kahle kokukhiqiza kanye nokwenyuka kokulungiswa, okulimaza kakhulu ukongiwa kwamandla kanye nokwehliswa kokusetshenziswa kwemishini yokumpompa, okubangela ukulahlekelwa okukhulu kwezomnotho ebhizinisini. Ngakolunye uhlangothi, ukwethulwa kwezilayidi ezimbili ezinkulu zensimbi kuyunithi yokumpompa ugongolo kuholela ezinkingeni eziningi njengomthelela omkhulu wokuqala weyunithi yokupompa. Ngaphezu kwalezi zindaba ezimbili ezishiwo ngenhla, indawo ekhethekile yendawo yokukhiqiza uwoyela inquma ukuthi imishini yokukhipha uwoyela inezici zayo zokusebenza. Esigabeni sokuqala sokukhiqizwa komthombo kawoyela, kunenani elikhulu lokugcina uwoyela kanye nokutholakala koketshezi olwanele. Ukuze kuthuthukiswe ukusebenza kahle, ukusebenza kwemvamisa yamandla kungamukelwa ukuze kuqinisekiswe ukukhiqizwa kukawoyela okuphezulu; Ezigabeni ezimaphakathi nezakamuva, ngenxa yokuncipha kwezinqolobane zikawoyela, kulula ukubangela ukutholakala koketshezi okwanele. Uma injini iqhubeka nokusebenza ngamandla, nakanjani izomosha amandla kagesi futhi ibangele ukulahlekelwa okungadingekile. Ngalesi sikhathi, kuyadingeka ukucabangela isimo sangempela sokusebenza, ukunciphisa ngokufanele isivinini semoto, ukunciphisa ukushaywa, futhi kuthuthukise ngempumelelo izinga lokugcwalisa. Ukuze kuxazululwe izinkinga ezingenhla, ubuchwepheshe bokuguqula imvamisa bungangeniswa ekulawuleni amayunithi okupompa ama-boam.
Ngokunquma imvamisa yokusebenza yemoto ngokususelwa kubukhulu bokusebenza kwayo kwamanje, ukushaywa kweyunithi yokupompa kungalungiswa kalula ngokuya ngezinguquko ezimweni zomthombo, ukufeza umgomo wokonga amandla kanye nokwenza ngcono isici samandla wegridi yamandla. Ngesikhathi esifanayo, isiguquli semvamisa sinesiqalo esithambile esinejubane eliphansi, futhi isivinini singalungiswa kahle futhi silungiswe kabanzi. Inemisebenzi ephelele yokuvikela izimoto, njengokujikeleza okufushane, ukulayisha ngokweqile, ugesi omningi, i-undervoltage, kanye ne-stall, engavikela ngempumelelo imishini yenjini neyemishini, iqinisekise ukuthi okokusebenza kusebenza ku-voltage ephephile, futhi kunezinzuzo eziningi njengokusebenza okushelelayo nokuthembekile, ukuthuthukiswa kwamandla, njll. Kuyisixazululo esifanelekile sokuguqulwa kwemishini yokukhiqiza uwoyela.
Njengamanje, kunezici ezintathu eziyinhloko zokuguqulwa kwesiguquli semvamisa yamayunithi okuphampa uthayela:
(1) Ukuguqulwa kokuguqulwa kwefrikhwensi kuhlose ukuthuthukisa ikhwalithi yegridi yamandla nokunciphisa umthelela wayo kugridi yamandla. Lokhu kugxile kakhulu ezimeni lapho amabhizinisi okuphakela amandla anezidingo eziphezulu zekhwalithi yegridi. Ukuze kugwenywe ukwehla kwekhwalithi yegridi, ukulawulwa kwefrikhwensi okuguquguqukayo kufanele kwethulwe, ngenjongo eyinhloko yokunciphisa umthelela wenqubo yokusebenza yeyunithi yokumpompa kugridi. Lolu hlelo lokusebenza lufakwe ohlelweni lokufaka isicelo endaweni yokukhiqiza uwoyela i-Linpan yase-Shengli Oilfield.
(2) Ukulungiswa kokuguqulwa kwemvamisa nokongiwa kwamandla njengomgomo oyinhloko. Lokhu kuyinto evamile. Ngakolunye uhlangothi, ukuze unqobe i-torque enkulu yokuqala yamayunithi okupompa insimu kawoyela, kusetshenziswa amamotho kagesi amakhulu kakhulu kunamandla adingekayo wangempela. Izinga lokusebenzisa amamotho kagesi ngesikhathi sokusebenza ngokuvamile liphakathi kuka-20% no-30%, kanti aphakeme kakhulu awadluli ku-50%. Izinjini zikagesi zivame ukuba sesimweni somthwalo omncane, okuholela ekumoshweni kwezinsiza zezimoto. Ngakolunye uhlangothi, isimo sokusebenza seyunithi yokupompa sishintsha ngokuqhubekayo, okuncike esimweni esingaphansi komhlaba. Uma ihlala isebenza ngamandla kagesi, nakanjani izobangela ukumoshakala kwamandla kagesi. Ukuze wonge amandla futhi uthuthukise ukusebenza kahle kwamamotho kagesi, ukuguqulwa kokuguqulwa kwemvamisa kuyadingeka.
(3) Ukulungiswa kokuguqulwa kwemvamisa okuhloswe ngayo ukuthuthukisa ikhwalithi yegridi yamandla nokongiwa kwamandla. Lesi simo sihlanganisa izinzuzo zezinguquko ezimbili ezingenhla futhi siyisiqondiso esibalulekile sokuthuthukiswa kwezinhlelo zokusebenza.
Enqubweni yesicelo sangempela, kuye kwavela izinkinga eziningi, ikakhulukazi ezigxile ekucutshungulweni kwamandla akhiqizwa isimo sokukhiqiza amandla weyunithi yokupompa i-beam. Esimeni sokuqala, ukusebenzisa isiguquli esivamile esineyunithi yokubhuleka edla amandla kungaba lula, kodwa lokhu kuza ezindlekweni zokusebenzisa amandla engeziwe, ikakhulukazi ngenxa yokuthi amandla akhiqiziwe awakwazi ukubuyiselwa kugridi. Uma isiguquli sefrikhwensi singasetshenziswa futhi injini isesimweni sikagesi, injini idonsa amandla kagesi kugridi (imitha izungeza phambili); Lapho injini kagesi isesimweni sokukhiqiza, ikhipha amandla (imitha iyahlehla), futhi amandla kagesi abuyiselwa kugridi ngaphandle kokusetshenziswa imishini yendawo. Ukusebenza kukonke ukuthi isici samandla sesistimu yokuphakelwa kwamandla eyunithi yokumpompa siphansi uma kuqhathaniswa, okunomthelela omkhulu kukhwalithi yegridi yamandla. Kodwa uma usebenzisa isiguquli esivamile, isimo sishintshile. Okokufaka kwesiguquli sefrikhwensi evamile kulungisiwe i-diode, futhi amandla awakwazi ukugelezela ngakolunye uhlangothi. Ingxenye engenhla yamandla kagesi ayinayo indlela ebuyela kugridi futhi kufanele isetshenziswe endaweni kusetshenziswa izinto eziphikisayo, yingakho kufanele kusetshenziswe amayunithi okubhuleka adla amandla. Esimeni sesibili nesesithathu, kuyadingeka ukuphatha kahle amandla kagesi akhiqizwa isimo sokuphehla amandla enjini bese uwaphendula kugridi. Uma kungenjalo, amandla alondolozwe ngokulungisa i-stroke yeyunithi yokumpompa angase angakwazi ukususa amandla asetshenziswe iyunithi yokubhuleka yesiguquli sefrikhwensi, okuholela ekusetshenzisweni kwamandla phakathi nomsebenzi wokuguqula imvamisa, okungqubuzana nomgomo wokongiwa kwamandla. Ukuze kuxazululwe le nkinga, kuyadingeka ukuguqula isiguquli sefrikhwensi evamile ngokwethula isakhiwo se-PWM esikabili esakhiweni ukuze kuqinisekiswe ukuthi ugesi okhiqizwa ngesikhathi sokuphehlwa kukagesi ubuyiselwa kugridi; Ukwethulwa kokulawula okuguquguqukayo ezindleleni zokulawula ukuzivumelanisa nesimo esishintshayo sokusebenza samayunithi okuphampa ugongolo.