Cov teeb meem thiab cov kev daws teeb meem tau ntsib hauv kev saib xyuas tiag tiag ntawm zaus hloov pauv hloov hluav taws xob:
1. Delta zaus converter (fault phenomenon: tsis muaj zaub thaum powered rau)
Tom qab kev sim, nws tau pom tias lub ntsiab Circuit Court ntawm lub hwj chim mov, them tus nqi resistor, thiab lub ntsiab Circuit Court contactor yog txhua yam zoo, yog li nws tau txiav txim siab tias lub hwj chim hloov hluav taws xob yog faulty. Ua raws li cov kauj ruam saib xyuas saum toj no txhawm rau ntsuas lub hwj chim hloov hluav taws xob. Thaum lub sij hawm thawj kauj ruam ntawm kev ntsuas, nws tau pom tias 330K Ω / 2W voltage nco tsis kam ntawm DC tsheb npav 560V thiab PWM modulation nti puas lawm. Qhov nominal tsis kam ntawm 330K Ω / 2W tau ntsuas siab tshaj 2M Ω, yog li PWM modulation nti tsis tuaj yeem txais lub zog pib, yog li nws tsis tuaj yeem pib thiab ua haujlwm. Yuav kom ceev faj, cov khoom tseem ceeb xws li hloov cov raj, transformers, rectifier diodes, thiab lim capacitors kuj tau sim. Tom qab lees paub tias tsis muaj teeb meem, lub hwj chim ntawm kev sim tau ua, thiab nws yog OK! Lub zog hloov hluav taws xob vibrates, thiab qhov tso zis hluav taws xob ntawm txhua pab pawg yog qhov qub. Tom qab txhim kho lub zaus hloov pauv, qhov kev sim pib yog qhov qub. Qhov kev hloov pauv zaus no tau raug kho lawm (ceeb toom: cov neeg ua haujlwm tu yuav tsum tsim tus cwj pwm thaum lub sijhawm tu: tsis txhob maj hloov cov khoom tsis raug rau kev sim, nco ntsoov sim tag nrho cov khoom siv hluav taws xob siab thiab yooj yim puas tsuaj, thiab sim lub tshuab dua tom qab paub meej tias. tsis muaj teeb meem, uas muaj kev nyab xeeb thiab nyab xeeb).
2. Tai'an zaus converter (qhov tshwm sim txhaum cai: tsis muaj zaub thaum powered)
Tom qab kev sim, nws tau pom tias lub ntsiab Circuit Court ntawm lub hwj huam mov, lub hwj chim resistor, thiab lub ntsiab Circuit Court contactor yog txhua yam, thiab qhov txhaum tau txiav txim siab nyob rau hauv lub hwj chim board. Ua raws li cov kauj ruam kho kom ntsuas qhov hloov hluav taws xob board.
Thawj kauj ruam ntawm kev ntsuas dhau, thiab thaum lub sij hawm thib ob ntawm kev ntsuas, nws tau pom tias qhov kev sib tshuam ntawm lub raj hloov tau tawg. Nws raug tshem tawm, thiab tom qab ntawd cov khoom tseem ceeb xws li transformer, rectifier diode, thiab lim capacitor raug kuaj. Tom qab lees paub tias tsis muaj teeb meem, lub zog ntawm kev sim tau ua, thiab qhov tso zis hluav taws xob ntawm txhua pab pawg yog qhov qub. Qhov kev kuaj xyuas yog qhov qub, thiab qhov ua txhaum raug tshem tawm.
3. Siemens zaus converter (fault phenomenon: tsis muaj zaub thaum powered)
Tom qab kev sim, nws tau pom tias lub ntsiab Circuit Court ntawm lub hwj huam mov, lub hwj chim resistor, thiab lub ntsiab Circuit Court contactor yog txhua yam, thiab qhov txhaum tau txiav txim siab nyob rau hauv lub hwj chim board. Ua raws li cov kauj ruam kho kom ntsuas qhov hloov hluav taws xob board.
Thawj kauj ruam dhau qhov kev ntsuas, theem thib ob dhau qhov ntsuas, qhov thib peb theem dhau qhov ntsuas, theem plaub dhau qhov ntsuas, thiab tom qab ntawd lub hwj huam hluav taws xob cais tawm los ntsuas tias lub hwj chim davhlau ya nyob twg ntawm PWM modulation nti muaj qhov voltage. ntawm txog 12.5V mus rau hauv av, qhia tias lub hwj chim mov yog qhov qub. Siv lub oscilloscope los soj ntsuam PWM tso zis davhlau ya nyob twg ntawm lub nti, nws tau pom tias tsis muaj PWM modulation waveform. Tom qab hloov PWM modulation nti, lub zog ntawm kev sim yog qhov qub thiab qhov ua txhaum raug daws.
4. Schneider zaus converter (fault phenomenon: tsis muaj zaub thaum powered rau)
Tom qab rov ua dua qhov hloov lub raj, nws tau pom los ntawm kev ntsuam xyuas tias lub ntsiab Circuit Court, them nyiaj resistor, thiab lub ntsiab Circuit Court contactor ntawm lub hwj chim mov yog txhua yam, thiab qhov txhaum tau txiav txim siab nyob rau hauv lub hwj chim board. Ua raws li cov kauj ruam kho kom ntsuas qhov hloov hluav taws xob board.
Thawj kauj ruam dhau qhov kev ntsuas, theem thib ob pom qhov tawg ntawm qhov hloov lub raj, lub kauj ruam thib peb dhau qhov ntsuas, thiab theem plaub dhau qhov ntsuas. Hloov lub raj hloov nrog ib qho tshiab, thiab cais lub hwj chim ntawm lub hwj chim board, tab sis lub raj tau hlawv dua. Tom qab tshem lub raj hloov, tsis txhob nruab lub raj. Ua lub zog ntawm kev sim thiab ntsuas tias lub hwj chim davhlau ya nyob twg ntawm PWM modulation nti muaj qhov voltage ntawm 12V rau hauv av, uas kuj yog ib txwm muaj. Siv lub oscilloscope los soj ntsuam lub PWM tso zis davhlau ya nyob twg ntawm lub nti, nws tau pom tias PWM nthwv dej tsuas yog hais txog 5-6 KHZ. Tom qab fais fab tuag, lub sij hawm tivthaiv raug tshem tawm rau kev ntsuas thiab nws tau pom tias qhov kev tiv thaiv tus nqi ntawm lub sij hawm resistor nce. Tom qab hloov lub sij hawm resistor thiab hloov raj, lub hwj chim tau qhib ib txwm thiab lub hwj chim raj tsis tau hlawv lawm. Qhov txhaum raug daws lawm.
5: Lenz zaus converter (kev txhaum tshwm sim: tsis muaj zaub thaum powered)
Rov ua dua qhov hloov lub raj, ua raws li kev saib xyuas cov kauj ruam los ntsuas qhov hloov hluav taws xob lub rooj tsavxwm.
Thawj kauj ruam dhau qhov kev ntsuas, thiab thaum lub sij hawm thib ob, nws tau pom tias qhov sib txuas ntawm lub raj hloov tau tawg. Qhov thib peb, plaub, tsib, thib rau, thiab xya theem tag nrho dhau qhov kev ntsuas. Nruab ib lub raj hloov tshiab thiab ua lub zog ntawm kev sim. Raws li qhov hluav taws xob ntawm qhov ntsuas hluav taws xob nce, koj tuaj yeem hnov lub suab squeaking, uas yog suab nrov me ntsis. Tom qab kho qhov hluav taws xob mus rau qhov ntsuas hluav taws xob, qhov tso zis hluav taws xob yog ntsuas kom qis dua li tus nqi ib txwm muaj. Tsis pub dhau 2 feeb, mam li nco dheev muaj ntxhiab tsw, thiab lub fuse tawg. Ceev nrooj txiav tawm lub hwj chim thiab pom tias lub raj hloov pauv kub heev rau tes. Qhov ntsuas qhia tau tias nws twb tau tawg lawm. Tshem lub raj hloov pauv rau kev ntsuas hluav taws xob, ntsuas qhov hluav taws xob nruab nrab ntawm lub hwj chim kawg ntawm PWM modulation nti thiab hauv av nyob ib ncig ntawm 12V. Siv lub oscilloscope los soj ntsuam PWM cov zis kawg ntawm lub nti, thiab pom tias muaj PWM nthwv dej tawm nrog qhov zaus ntawm ib ncig ntawm 30 KHZ, uas kuj yog ib txwm muaj. Yog li ntawd, kuv xav tias qhov zoo ntawm qhov hloov tshiab hloov raj tsis zoo. Kuv hloov nws nrog lwm tus thiab ua lub zog ntawm kev sim. Yog li ntawd, lub raj raug hlawv dua. Tom qab qhov hluav taws xob raug txiav tawm, kuv yuam kev kov cov khoom ntawm lub tshuab nqus tsev thiab pom tias nws kub. Txawm li cas los xij, nws yog qhov qub thaum ntsuas, yog li kuv tau sim nws dua thiab nws tseem zoo li qub. Tsuas yog dismantle lub nqus Circuit Court thiab hloov nws nrog lub raj rau lub zog ntawm kev sim. Nws tau pom tias lub suab squeaking ntawm lub transformer raug txo, thiab cov zis voltage ntawm txhua pab pawg tau ntsuas kom zoo li qub. Tom qab khiav rau 20 feeb, lub raj hloov pauv tsis hlawv dua. Tom qab lub hwj chim raug txiav tawm, qhov kov hloov lub raj yog kub me ntsis, qhia tias muaj cua sov li qub. Yog li ntawd, nws tau txiav txim siab tias qhov txhaum yog nyob rau hauv qhov nqus Circuit Court, thiab cov khoom siv hluav taws xob nqus tau raug hloov pauv kom tshem tawm qhov txhaum.
