Ungasusa kanjani iphutha kuphaneli yokulawula ye- imvamisa yesithando somlilo esiphakathi? Izinyathelo ezinemininingwane zokususa iphutha

Ibhodi lokulawula lesithando somlilo esiphakathi liyingxenye ebaluleke kakhulu lapho isithando somlilo esiphakathi sisebenza. Ukusuka ekukhethweni kuya ekushiselweni kwebhodi lesifunda, ukuya ekulungiseni iphutha nasekuhlolweni kokuguga, kuyisixhumanisi esibaluleke kakhulu. Phakathi kwabo, abasebenzisi abaningi bazoziba umsebenzi wokulungisa iphutha webhodi lokulawula, futhi abazi ukuthi bangasusa kanjani iphutha ebhodini lokulawula lesithando somlilo esiphakathi. Namuhla ngifingqe okuqukethwe okuhlobene kwezinyathelo zokulungisa iphutha zephaneli yokulawula ukuze ngikuchazele, ake sikubheke ndawonye.

1. Izinyathelo zokulungisa iphutha zengxenye yokulungisa yephaneli yokulawula yesithando somlilo esimaphakathi

1. Ukuphepha kokulungisa iphutha, ibhuloho le-inverter kufanele licishwe ngaphambi kokulungisa iphutha.

2. Ukunikezwa kwamandla kwezigaba ezintathu kunganikezwa, kungakhathaliseki ukulandelana kwesigaba, futhi uhlole ukuthi ukhona yini umbiko wokuhluleka kwesigaba. Uma kunjalo, hlola ukuthi i-fuse esheshayo engenayo yonakele yini.

3. Vula i-potentiometer “enikeziwe” kuphaneli ibe enkulu njengokuhamba kwewashi, i-DC voltage waveform kufanele icishe ikhululwe ngokuphelele, futhi wonke ama-wave heads angaphakathi angu-6. Uma ukunikezwa kwamandla okuvama okumaphakathi kuwu-380V okokufaka, i-voltmeter ye-DC kufanele inkomba ngalesi sikhathi Around 530V. Bese uvula i-potentiometer “enikeziwe” ephaneli ngokuphambene newashi ibe mncane, i-waveform ye-voltage ye-DC isicishe ivalwe ngokuphelele, futhi i-engeli A cishe i-120 degrees ngalesi sikhathi. I-waveform ye-DC ephumayo kufanele iqhubeke futhi ishelele kulo lonke ibanga lokushintsha kwesigaba.

4. Esimeni sokuhluleka kwamandla, xhuma ibhuloho le-inverter ukuze wenze isiguquli sicuphe okokufaka kwe-pulse, futhi ukhiphe umthwalo omelana nakho embobeni yebhuloho lokulungisa kabusha. Vula i-“W1VF” yokunquma i-potentiometer ebhodini lesifunda ukuya ekupheleni, (uma i-inverter overvoltage kwenzeka phakathi nenqubo yokulungisa iphutha, inganikeza ukuvikelwa kwe-overvoltage). Iswishi kuphaneli yokulawula eyinhloko isethelwe endaweni ethi ON, futhi i-potentiometer “enikeziwe” kuphaneli izungeziswa ngokuphikisana newashi.

5. Ngemva kokukhanyisa imizuzwana embalwa, vula i-potentiometer “enikeziwe” kuphaneli ngokwewashi kancane ukuze ukhuphuke. Ngalesi sikhathi, ibhuloho le-inverter lizovela ezifundeni ezimbili ezisebenzayo, enye iyibhuloho le-inverter elizulazulayo, elinye liyibhuloho le-inverter. Okudingekayo ngalesi sikhathi ukuxhumana okuqondile kwebhuloho le-inverter. Uma ibhuloho le-inverter lisesimweni sokuzulazula, isigaba se-intermediate frequency voltage transformer singalungiswa esimweni sokuhluleka kwamandla, okungukuthi, umugqa ophumayo we-intermediate frequency voltage transformer 20V ungalungiswa. Izoqala ukudlidliza. Ekusebenzeni kokuguqula kancane kancane i-potentiometer “enikeziwe” kuphaneli enkulu, qaphela kakhulu impendulo ye-ammeter. Uma inkomba ye-ammeter ikhula ngokushesha, kufanele uguqule ngokushesha i-potentiometer “enikeziwe” ngokuphambene newashi. ,

6. Ngalesi sikhathi, kubonisa ukuthi kunenkinga ngesekethe yesampula yamanje, futhi uhlelo lusesimweni samanje se-loop evulekile. Hlola ukuthi i-transformer yamanje ixhunyiwe yini. Ukusebenza okuvamile ukuthi njengoba i-potentiometer “enikeziwe” ikhula kancane kancane, inkomba ye-ammeter nayo iyanda. Lapho i-potentiometer “enikeziwe” iyeka ukujikeleza, isibonakaliso se-ammeter singama ngokuzinza esikalini esithile.

7. Uma kukhona okwenzekayo, vula i-potentiometer “okunikeziwe” kuphaneli ngokwewashi ukuze wenze inkomba ye-ammeter isondele cishe ku-50% yenani elilinganiselwe. I-voltmeter yamanje yeglue ikala i-voltage phakathi kwamatheminali amathathu. Ama-voltages amathathu kufanele acishe afane. Uma umehluko mkhulu kakhulu, kusho ukuthi i-terminal enegama elifanayo le-transformer yamanje ixhunywe ngokungalungile. Kumele kulungiswe, ngaphandle kwalokho kuzothinta ukusebenza okuvamile komlawuli wamanje. .

8. Qhubeka uvula i-potentiometer “enikeziwe” kuphaneli njengokuya kwewashi ukuya ekugcineni, inkomba ye-ammeter kufanele ibe seduze nenani elilinganiselwe, futhi ulungise okwamanje ebhodini lokulawula eliyinhloko ngokuphambene newashi ukuze uphakele i-potentiometer yokunquma ukuze wenze i-DC. i-ammeter ibonisa ukukhishwa okulinganiselwe kwamanje. Ukulungiselelwa kwamanje okukaliwe kuqediwe. Ngale ndlela, ukulungiswa kwebhuloho lokulungisa kabusha kuqedwa ngokuyisisekelo, futhi ukulungiswa kwebhuloho le-inverter kungenziwa.

9. Uma ukunikezwa kwamandla kwesayithi lokulungisa iphutha kungakwazi ukuhlinzeka ngesilinganiso samanje sedivayisi, ukulungiselelwa kwamanje okulinganiselwe kungenziwa uma isayithi lisebenza ngokugcwala okuphelele. Kodwa-ke, kufanele uqale unqume ukuthi iluphu yesampula yamanje isebenza kahle yini ngaphansi kwesimo samanje esincane.

Okwesibili, izinyathelo zokulungisa iphutha zengxenye ye-inverter yephaneli yokulawula yesithando somlilo esiphakathi

1, ithebula lemvamisa yokulinganisa

I-DIP -2 yeswishi ebhodini lokulawula elikhulu isethwe endaweni ethi ON, i-DIP -3 isethwe endaweni ethi VALIWE, futhi i-potentiometer “enikeziwe” kuphaneli yehliswa ngokuphambene newashi. Xhuma i-oscilloscope kukesi leshubhu le-Q5 noma i-Q6, ulinganise enye imvamisa yokuvusa ye-inverter trigger pulse (enye imvamisa yokuvusa ingalungiswa nge-FMAX ne-DIP-1), lungisa: W6 FHZ “shuna kahle i-potentiometer ukuze wenze ukufundwa kwemitha ye-frequency Kuyahambisana nalokho okukalwa nge-oscilloscope. Uma ukunikezwa kwamandla okuvama okumaphakathi kusebenzisa imitha yefrikhwensi emaphakathi ekhethekile, lesi sinyathelo sokulungisa iphutha singashiywa.

2, inverter yokuqala

(1) Okokuqala, hlola ukuthi ingabe umugqa wesango we-thyristor inverter uxhumeke ngendlela efanele, nokuthi ukukhanya kwe-LED esigabeni sokugcina se-inverter kuyinto evamile. Uma ingakhanyi, kusho ukuthi amatheminali E no-C esiteji se-inverter ahlehlisiwe; bese ibhodi lokulawula eliyinhloko Khipha uxhumano lwangaphandle lwe-UA engenhla, futhi ubone ukuthi isiteji se-inverter ye-LED esicishiwe sisesimweni se-diagonal sebhuloho le-inverter.

(2) Vula i-DIP-2 yeswishi ye-DIP ebhodini lokulawula elikhulu uye endaweni ye-ON kanye ne-DIP-3 endaweni ye-OFF, vula i-potentiometer “enikeziwe” ephaneli ekupheleni, bese ulungisa “W5” iphaneli yokulawula. I-FMAX “I-Fine-tuning potentiometer ne-DIP-1, yenza imvamisa yokuvusa ibe phezulu kunezikhathi eziyi-1.4 ze-tank circuit resonance frequency, “W3MAX” kanye “W4MIN” okuhlela ama-potentiometers aphendulwa endaweni emaphakathi. Vula i-potentiometer “enikeziwe” kuphaneli ngokwewashi ibe inani elikhulu, bese imvamisa yayo yokuvusa iqala ukushanela isuka phezulu iye phansi. Ibhuloho le-inverter lingena esimweni sokusebenza futhi liqala ukudlidliza.

(3) Uma ingadlidlizi, izoboniswa njengoba ishukumisa isignali ukuthi yenze izenzo zokushanela imvamisa ephindaphindiwe, engalungisa isigaba se-voltage ye-voltage ephakathi nendawo, okungukuthi, ihlehlise umugqa ophumayo we-20V yokujikajika i-intermediate frequency voltage transformer. Uma ulayini ophumayo we-20V ojikajikayo we-intermediate frequency voltage transformer uhlehliswa, usahluleka ukuqalisa. Ngalesi sikhathi, kufanele uqinisekise ukuthi imvamisa ye-resonance yesekethe yethangi ilungile. Ungasebenzisa imitha ye-capacitance/inductance ukukala umthamo we-capacitor yokushisa kanye ne-inductance ye-inductor. Bala imvamisa ye-resonant yesekethe yethangi. Uma i-resonant frequency yesekethe yethangi iku-0.6 kuya ku-0.9 ye-excitation frequency, kufanele kube lula ukuyiqala. Isinyathelo esilandelayo ukuhlola ukuthi i-inverter thyristor yonakele yini.

3, setha i-engeli yangaphambili yomthofu obuyela emuva

(1) Ngemuva kokuthi i-inverter iqala ukudlidliza, ungenza umsebenzi wokusetha i-angle yangaphambili ye-inverter. Vula inkinobho ye-DIP i-DIP-2 endaweni ethi ON kanye ne-DIP-3 endaweni YOKUVALIWE. I-pulser ibheka i-waveform ye-100V yokujika kwe-voltage transformer futhi ilungisa I-“W4MIN” yokulinganisa kahle i-potentiometer ebhodini eliyinhloko lokulawula yenza i-engeli eholayo yesigaba sokuguqula ibe ngu-25°. Ngalesi sikhathi, isilinganiso se-voltage ephumayo yefrikhwensi emaphakathi ku-DC voltage sicishe sibe ngu-1.3.

(2) Vula iswishi ye-DIP-3 uye endaweni ye-ON futhi, lungisa i-potentiometer yokunquma i-“W3 MAX” ebhodini eliyinhloko lokulawula, bese usetha i-engeli yangaphambili yomthofu wesigaba sokuguqula. Ngokwamandla kagesi aphakathi nendawo ahlukene okukhiphayo angu-750V, i-engeli eholayo yesigaba sokuguqula iyadingeka ukuthi ibe ngu-42°. Ngalesi sikhathi, isilinganiso se-voltage ephumayo yefrikhwensi emaphakathi ku-DC voltage ngu-1.5.

(3) Uma kukhona i-engeli yangaphambili enkulu ngokwedlulele ye-inverter ngesikhathi sokulungisa iphutha, hlola ukuthi ingabe i-resonance frequency resonance yethangi iphansi kakhulu.

4. Ukusetha i-voltage elinganiselwe yokuphumayo

Setha i-voltage elinganiselwe yokukhiphayo ngaphansi kwezimo zokulayisha ukukhanya, setha inkinobho ye-DIP i-DIP-2 ebhodini eliyinhloko lokulawula liye endaweni ye-ON kanye ne-DIP-3 endaweni ye-OFF. “Jikisa i-potentiometer ngokwewashi, bese ibhuloho elishintshashintshayo lisebenza. Qhubeka nokuvula i-potentiometer “enikeziwe” kuphaneli ngokwewashi ukuze ukhule. Ngalesi sikhathi, i-voltage yefrikhwensi emaphakathi ephumayo iseduze nenani elilinganiselwe. Lungisa i-“W1VF” yokulungisa kahle i-potentiometer ngokuphambene newashi ukuze wenze i-voltage yefrikhwensi emaphakathi ephumayo ifinyelele inani elilinganiselwe.