Chii chinonzi Voltage Sag?
Voltage sag kudzikiswa kwenguva pfupi kwemagetsi emagetsi ari pakati pe10% ne90% yemagetsi ezita anogara kubva pahafu yekutenderera kusvika paminiti imwe. Kuvhiringika kwemhando yemagetsi kunoitika kana simba remagetsi richida kungoerekana rakwira-kubva pakuvangidzwa kwemotor, mapfupi maseketi, kana kutadza kushanda zvakanaka-zvinoita kuti magetsi adzike zvishoma asati adzokera kune zvakajairika.
Kunzwisisa voltage sag zvinhu nekuti chiitiko ichi chinokanganisa mashandiro emaindasitiri pasi rese. Midziyo yemazuva ano yekugadzira, kubva kune inogoneka logic controller kuenda kune inosiyana kumhanya madhiraivha, yave kuwedzera kutarisisa kune aya mapfupi madonhwe emagetsi. Chiitiko chimwe chete chesag chinogara mashoma mashoma anogona kuvhara tambo yese yekugadzira, huwori hwe data system, kana kukuvadza magetsi anonzwa.
Zvinowanzokonzera Voltage Sag
Voltage sags inotangira kubva kune ese emukati nzvimbo masosi uye ekunze grid kukanganisa. Izvo zvitatu zvinotungamira zvinokonzeresa kukanganisa kwemutsara, induction mota kutanga, uye transformer inosimbisa.
External Grid Zvinokonzera
Masimba emagetsi system anomiririra yakanyanya kuomarara sosi yevoltage sags. Kana mutsetse mumwe-ku{2}}ground fault ukaitika pane imwe nzvimbo pagrid, inogona kukanganisa vashandisi mukati me100-mamaira radius. Kurova kwemheni, mapazi emiti akadonha, tsaona dzemotokari dzinosanganisira mapango ezvishandiso, uye kukuvadzwa nemhepo kumatambo ekutumira zvose zvinoparira mamiriro ezvinhu okukanganisa anopararira nomumbure wokuparadzira. Izvi zvekushandisa-padivi zviitiko zvinokonzeresa ruzhinji rweyakadzika voltage sags, uko voltage inodonha pasi pe50% yemazita.
Mamiriro ekunze-zviitiko zvinechekuita zvinokonzeresa matambudziko. Mheni haidi kuti irove tambo yemagetsi yakananga kukonzeresa matambudziko-kurova kwepadhuze kunokweva simba rakakosha kubva kumagetsi emuno, kudzvanya grid uye kugadzira mamiriro ekusagadzikana kune vashandisi vakatenderedza. Mhepo dzakasimba dzakasimudzwa panguva yemadutu dzinogona kudonhedza mitsetse kana kukonzera kubata kwemuti, zvichikonzera midziyo yekudzivirira iyo inogadzira magetsi sags paparallel feeder kunyangwe iwo masekete achiramba aine simba.
Internal Nzvimbo Zvinokonzera
Zviitiko zvakawanda zvevoltage sag zvinobva mumidziyo iri mukati mechivako kana chirimwa kwete kubva mukushandisa. Motokari kutanga mazaya inogadzira akajairika emukati sags mune maindasitiri marongero. Mahombe induction motors anogona kudhirowa kashanu-7 nguva dzawo akayerwa ikozvino panguva yekutanga, achigadzira yakakura kudonha kwevoltage kuyambuka system impedance inokanganisa mimwe michina padunhu rimwe chete.
Arc furnaces munzvimbo dzekugadzira simbi dzinogadzira zvakanyanya kuomarara uye zvinowanzoitika sags nekuda kwekukwira kwavo, kusiyanisa simba rekuda. Iyi mitoro inogadzira isina kuenzana mamiriro ayo anoburitsa asymmetric voltage sags inobata zvikamu zvega zvakasiyana. Transformer energizing inokonzeresawo kusaga, kunyanya kana transformer core isati yanyatsopera simba remagineti isati yatangazve-simba, zvichiita kuti inrush currents ideredze system voltage.
Munzvimbo dzekugara, voltage sags inoitika kana mafiriji, maair conditioner, kana mafeni echoto achitenderera. Kunyange zvisinganyanyi kuomarara kupfuura masagi emaindasitiri, zviitiko izvi zvinogona kuramba zvichikanganisa magetsi epamba uye kukonzera kudzima kwemwenje.
Mabatiro Anoita Voltage Sag Inokanganisa Zvishandiso Zvakasiyana
Kukanganisa kwevoltage sag kunosiyana zvakanyanya zvichienderana nerudzi rwechishandiso, dhizaini, uye sag ukuru uye nguva. Mazhinji voltage sags anogara pakati pe 2 uye gumi ma cycles (33-167 milliseconds mu 60 Hz system), asi kunyangwe zviitiko zvipfupi zvinogona kukonzeresa kutadza.
Industrial Equipment Sensitivity
Inogadziriswa yekumhanyisa madhiraivha uye akasiyana frequency madhiraivha anoratidza yakakwirira senitivity kune voltage sags. Midziyo iyi inotsamira paDC bus capacitors kuchengetedza kushanda kwakadzikama. Munguva yekusagika, ma capacitors anoburitsa kutsiva kuderedzwa kwemagetsi ekuisa. Kana iyo sag yakadzika zvakaringana kana inotora nguva yakareba kuti ibvise aya ma capacitor pazasi pedhiraivha yedhiraivha yekushanda pachikumbaridzo, dhiraivha inofamba kunze kwenyika. Zvidzidzo zvekugadzira zvinoratidza kuti nguva isina kurongeka yekudzika kubva kumagetsi sag zviitiko zvinodhura zvivakwa zveindasitiri avhareji yemadhora mazana maviri nemakumi matanhatu paawa.
Programmable logic controllers (PLCs) uye maitiro ekudzora masisitimu anoratidzawo kutadza kushivirira. Zvishandiso izvi zvemicroprocessor-zvinoda kugadzikana DC voltage kuchengetedza ndangariro nekuita maalgorithms. Voltage sag inogona kukanganisa data, kuseta processor, kana kuita kuti PLC ipinde munzvimbo ine chikanganiso inoda kupindira kwemanyorero kuti itangezve kugadzira maitiro.
Zvibatiso zvemoto zvinodzikisira uye marelay anodonha panguva yekuderera kwevoltage kana coil voltage ichidzika pasi peinodonha, kazhinji inosvika 70-80% yemagetsi akayerwa. Izvi zvinokonzeresa kuti mamotor akabatana adzikise-simba kunyangwe simba richiramba riripo, zvichigadzira kuvharika kusingakoshi uye kutangazve kunonoka.
Computer uye Data Systems
Simba rekushandisa mumakomputa uye maseva anoshandisa simba rakachengetwa mumacapacitor kutsetsenura misiyano yekupinda. Kana voltage sags ikaitika, aya magetsi anokwevera akawedzera ikozvino kuchengetedza inobuda voltage, inopedza capacitor simba nekukurumidza. Kana iyo sag ikapfuura nguva yemagetsi yakamira-nguva (kazhinji 8-20 milliseconds pamudziyo wegiredhi revatengi), sisitimu inopera simba, ikaparara, uye inorasikirwa nechero data isina kuchengetwa.
Nzvimbo dzedata dzinotarisana nenjodzi nekuti kuparara kweseva kunogona kukanganisa zviuru zvevashandisi panguva imwe chete. A single voltage sag inogona kukonzeresa huwori hwedatabase, kutadza kwetransaction, uye kukanganisika kwesevhisi kunotora maawa akawanda kugadzirisa kunyangwe magetsi adzoka kune zvakajairika.
Mutengo Wakavanzika weVoltage Sag mu48V eBike Lithium Mabhatiri
Mabhasikoro emagetsi anotarisana nerudzi rwakati rwevoltage sag challenge inosiyana negrid-based issues. Mu48V eBike masisitimu anoshandisa lithium-mabhatiri eion, voltage sag inoitika kana kudhonzwa kwepamusoro kubva mumotor kuchikonzera kudonha kwemagetsi kwechinguva nekuda kwekuramba kuri kuita bhatiri mukati.
Imwe 48V eBike bhatiri pack ine maseru gumi nematatu akatevedzana (13S configuration), ine voltage yakachajiwa yakatenderedza 54.6V uye yakaderera-voltage cutoff pedyo ne39-42V. Kana mutasvi achimhanyisa zvakasimba, achikwira zvikomo, kana kushanda pamazinga ekubatsira zvakanyanya, mota inogona kudhonza 20-30 amps kubva mubhatiri. Kukwirisa uku kunoita kuti voltage ideredze ne3-6 volts nekuda kwekuramba kwemukati, ichidonhedza bhatiri kwechinguva kusvika pamazinga anokonzeresa kuchengetedzwa kwebhatiri management system (BMS) undervoltage.
Iko kunoshanda kunoreva kuti vatasvi vanoona kuchekwa kwemagetsi kusingatarisirwe kunyangwe bhatiri richiratidza kubhadharisa kuri pakati nepakati. Kana mhepo yekuzorora ichigara yakatenderedza 43-46V (inenge 20-40% yenyika yekuchaja), kamwe-kamwe throttle inopinza inogona kudonhedza voltage pazasi pemutongi cutoff chikumbaridzo che40-42V, ichivhara mota. Vatasvi vanofanirwa kuzodzikisa kudiwa kwemagetsi uye kumirira kudzoreredzwa kwemagetsi vasati vaenderera, izvo zvinogona kushungurudza panguva yekukwira kana mumotokari.
Zera rebhatiri rinowedzera dambudziko iri. Sezvo maseru eti lithium achidzikira kuburikidza neakajairika kushandiswa kutenderera, kuramba kwemukati kunowedzera, zvichikonzera kuwedzera kutaurwa kwevoltage sag pasi pemitoro yakafanana. Bhatiri rakaita zvakanaka kana idzva rikatanga kuratidza dambudziko rekuita mushure memazana matatu-500 ekuchajisa, kunyangwe kuyerwa kwehukuru hunoratidza hutano hunogamuchirika.
Tsanangudzo yehunyanzvi uye Mitemo
Zviyero zvehunyanzvi zvinotsanangura voltage sag paramita chaizvo kugonesa kuenderana kuyerwa uye kuenzanisa pane ese emagetsi masisitimu.
IEEE uye IEC Mitemo
Iyo IEEE 1159 yakajairwa inotsanangura voltage sag sekuderera kweRMS voltage pakati pe10% ne90% yemazita, inogara kubva 0.5 kutenderera kusvika 1 miniti. Zviitiko zvipfupi pane 0.5 kutenderera zvinoiswa sezvipfupi, nepo kuderedzwa kwemagetsi kunogara kwenguva refu kupfuura 1 miniti kunoonekwa seyakasimba undervoltage kana brownouts. Musiyano uyu unokosha nekuti nzira dzekudzikisa dzakasiyana dzinoshanda kune sags maringe nekudzikama kwemagetsi.
Iyo IEC 61000-4-30 chiyero inopa tsananguro dzakafanana asi inosanganisira imwe nhungamiro pamitoo yekuyera uye zvikumbaridzo. IEC inotsanangura sag seinoitika kana voltage inodonha pasi pe90% yevolti yakaziviswa kwenguva yakareba pakati pehafu-kutenderera uye miniti imwe, nekudzoreredza kusvika pamusoro pe90% mushure.
Zvose zviyero zvinosimbisa kuti voltage sag inoratidzwa nezvikamu zviviri zvakakosha: ukuru (kana kudzika) uye nguva. A sag kusvika 70% yemazita emagetsi anogara 6 cycles inomiririra chiitiko chine mwero, ukuwo sag kusvika 30% inogara 2 cycles inoumba chiitiko chakakomba chinogumbura zvakanyanya hunyanzvi.
Kuyera Voltage Sag
Masimba emhando analyzer anotora zviitiko zvesag nekuenderera mberi nekutarisa RMS voltage pamasampling mareti e5 kHz kana kupfuura. Zviridzwa izvi zvinorekodha shoma voltage, nguva, nguva yaitika, uye phase angles panguva -zvikamu zviitiko. Iyo data inoratidza kana sags ari pakati (inobata zvikamu zvese zvitatu zvakaenzana) kana isina kuenzana (ichikanganisa zvikamu zvega zvakasiyana).
Voltage sag magnitude inotaridzwa sechikamu chezita kana mu-pachiyero cheyuniti. Sag kusvika 0.7 per unit zvinoreva kuti voltage yadzika kusvika pa70% yezita. Nguva inoyerwa mumacycles (pa60 Hz, kutenderera kumwe kwakaenzana ne16.67 milliseconds) kana mumamilliseconds kuti inyatsojeka.
Mutsara mumwechete-ku-zvikanganiso zvepasi, izvo zvinomiririra zvinopfuura 80% zvezvinokanganisa masisitimu ekuparadzira, zvinogadzira maitiro asina kuenzana. Aya mapatani anobatsira vanoongorora emhando yemagetsi kuona nzvimbo yekukanganisa uye rudzi zvichibva pane yakaenzana voltage magnitude pachikamu chega chega uye chikamu chekona chinoshanduka chinoitika panguva yechiitiko.
Voltage Sag Versus Related Phenomena
Kusiyanisa voltage sag kubva kune yakafanana magetsi emhando zviitiko zvinobatsira pakusarudza nzira dzekudzivirira dzakakodzera.
Voltage Sag Versus Brownout
Voltage sag uye brownout zvese zvinosanganisira kudzikiswa kwemagetsi, asi zvinosiyana zvakanyanya mukufamba kwenguva. Brownouts ndeye nemaune kana nekusaziva inosimudzira kudzikiswa kwemagetsi anogara maminetsi kana maawa, anowanzo shandiswa nezvishandiso panguva dzepamusoro dzinodiwa kudzivirira kudonha kwese system. Voltage sags zvipfupi, zvisingaite zviitiko zvinogara masekonzi kana zvishoma izvo zvinokonzerwa nekukanganisa kana kamwe kamwe kuchinja kwemutoro.
Maitiro ekudzikisa anosiyana zvakanyanya. Brownouts inogona kuda kushandiswa kwekushandisa, kuburitsa mutoro, kana kuwedzera kwechizvarwa kugadzirisa. Voltage sags inoda kukurumidza-acting power conditioning equipment inogona kubaya magetsi anoripa mukati memamilliseconds.
Voltage Sag Versus Kuvhiringidza
Kuvhiringidzwa kunomiririra kurasikirwa kwakazara kwemagetsi (pazasi pegumi muzana yezita), nepo sag inochengetedza imwe voltage mukati mechiitiko ichi. Musiyano uyu unokosha nekuti maitiro emidziyo anosiyana zvakanyanya. Munguva yekuvhiringidzwa, magetsi anobuda zvakakwana uye masisitimu anorasikirwa nesimba zvachose. Munguva yemasags, mimwe michina inogona kuramba ichishanda kana yakasara voltage ikaramba iri pamusoro pechikumbaridzo chayo.
Kuvhiringika kunokonzerwa nekushanda kwemudziyo wekudzivirira-mabreaker kana mavhavha anozaruka kuti abvise kukanganisa. Masagi anoitika kana kukanganisa kuripo asi michina yekudzivirira isati yashanda, kana kana yakakwira inrush currents inogadzira madonhwe emagetsi pasina kukonzeresa dziviriro.
Voltage Sag Versus Kuzvimba
Kuzvimba kwemagetsi ndiko kunopesana-nekuwedzera kwechinguvana kwevoltage inodarika 110% yezita. Kuzvimba kunoitika kushoma pane masegi uye kazhinji kunokonzeresa kubva mumutsara mumwe{{3}ku{4}}kukanganisa kwepasi pamasisitimu asina kuvharwa, apo zvikamu zvisina kukanganisa zvinokwira simba remagetsi, kana kuti mitoro mikuru ikangoerekana yadimburwa uye simba rekuita rakambobatwa nemutoro iwoyo rinoita kuti voltage ikwire.
Nepo masagi achikonzeresa kuti michina ifambe kunze kwenyika kana kusashanda zvakanaka, kuzvimba kunogona kukonzera kukuvadzwa zvachose kune zvikamu nekupfuura maresheni ekudzivirira uye kusimbisa semiconductor junctions. Iko kuunganidzwa kwemaitiro ekuzvimba kwakadzokororwa kunoderedza midziyo zvishoma nezvishoma kunyangwe zviitiko zvega zvikasakonzeresa kukundikana nekukurumidza.
Kudzivirira uye Kuderedza Matanho
Kugadzirisa kuderera kwemagetsi kunoda nzira ine mutsetse inosanganisa utility-kunatsurudza kweparutivi, nzvimbo-yekudzivirira kwemazinga, uye michina-kuoma kwemazinga.
Simba System Dhizaini Kuvandudza
Kuwedzera mapfupi edunhu simba padanho rekubatanidza kunoderedza voltage sag magnitude. Izvi zvinogona kuitwa nekushandisa akakura conductor saizi kudzikisa impedance, kubatanidza kune yakakwira voltage mazinga apo kukanganisa kwazvino kwakakura, kana kuisa imwe shanduko yemagetsi. Kunyange zvichishanda, zvigadziriso izvi zvinosanganisira kukosha kwekudyara mari uye zvinogona kunge zvisingagoneke kune zviripo.
Yakapfava-yekutanga michina yemamotor hombe inodzikamisa inrush current, ichidzikisira wega-induced voltage sags mukati mezvivakwa. Zvibatiso zvakapfava zvishoma nezvishoma zvinokwidza voltage kumamotor mumasekonzi akati wandei, zvichideredza peak inotangira parizvino kubva pa600% yeyakayerwa kusvika pa200-300%. Iyi inodhura-inoshanda mhinduro inogadzirisa imwe yeakajairika mukati sag masosi.
Dynamic Voltage Restoration
Dynamic Voltage Restorers (DVR) inomiririra tekinoroji yekudzikisa yepamusoro. MaDVR anotarisisa magetsi anouya achienderera mberi uye anobaya anoripa voltage munhevedzano nekupa kana masags aitika. Ichishandisa magetsi ekuchengetedza (kazhinji macapacitor) uye nekukurumidza-kuchinja magetsi emagetsi, maDVR anogona kugadzirisa voltage mukati me1-2 milliseconds, mudziyo usati waona kukanganisa.
DVR masisitimu anoshanda pa96-99% kunyatsoshanda mune yakajairika bypass modhi, ichiwedzera kurasikirwa kushoma. Munguva yekururamisa sag, vanogona kuchengetedza kubuda kwemagetsi kwemasekonzi 0.5-5 zvichienderana nesimba rekuchengetedza simba uye sag kudzika. Izvi zvinovhara pamusoro pe90% yezvakajairika voltage sag zviitiko. DVRs anokunda pakudzivirira mitsara yese yekugadzira kana yakakosha magadzirirwo emidziyo uko dzimwe mhinduro dzaisazoshanda.
Masimba Asingapindiki
UPS masisitimu anopa dziviriro kubva kune ese mavoltage sags uye kukanganisa kuzere nekushandisa bhatiri simba rekuchengetedza uye inverter tekinoroji. Munguva yekusagika, UPS inoenderera mberi nekupa zvinhu kubva kuAC uku ichigadzirisa voltage (pamhepo kaviri-madhizaini ekushandura) kana kuchinjisa kusimba rebhatiri mukati me4-8 milliseconds (mumagadzirirwo emutsetse).
Kune voltage sag dziviriro chete, UPS masisitimu anowanzo kuwanda uye anodhura. Bhatiri bhasikoro panguva yezviitiko zvesag inoderedza hupenyu hwebhatiri, kuwedzera mari yekugadzirisa. Mhinduro dzeUPS dzinoshanda zvakanyanya kana kudzivirira kukanganisa kuchidikanwa zvakare, kana kune mitoro midiki uko UPS hupfumi hune musoro.
Nzvimbo-Level Solutions
Kuisa magetsi ekugadzirisa magetsi panzvimbo dzakarongwa-panopindwa nesevhisi, mapaneru ekuparadzira, kana zvidzori zvemuchina{1}}zvinopa dziviriro yakanangwa. Iyo chaiyo nzvimbo inoenderana nesag sosi, mutoro wekunzwa, uye hupfumi.
Pazvivakwa zvinotakura zvinhu zvakawanda, sevhisi inodzivirira pamusuwo inodzivirira nzvimbo yese kubva kune zvinoshanda-parutivi kusagika asi haigadzirise kusaga kwemukati kubva pakutangidza mota hombe. Equiption-level yekudzivirira inodhura pamutengo wakachengetedzwa asi inoda michina yakawanda uye haidzivise masag kukanganisa zvimwe zvisina kudzivirirwa.
Kutarisa kwesimba remagetsi kunobatsira kuona sag frequency, ukuru, uye masosi usati wadyara mukuderedza. Dhata inoratidza kuti 80% yemasagi anobva mukukanganisa kwekushandisa maringe nemukati masosi inotungamira kune akasiyana nzira dzekudzivirira. Monitoring inogadzawo mamiriro ekutanga uye matanho ekuvandudza mushure mekuita kwekudzikisa.
Voltage Sag muSpecial Applications
Mamwe maindasitiri anotarisana neakasarudzika voltage sag matambudziko anoda hunyanzvi mhinduro.
Semiconductor Manufacturing
Kugadzira chip kunoda kuchena kwakanyanya, simba rakagadzikana. A single voltage sag anogona kukanganisa batch rese remawafer anokosha mamirioni emadhora. Semiconductor machira anowanzo kuisa redundant magetsi masisitimu ane kukurumidza kutamisa switch, DVR dziviriro pamidziyo yakakosha, uye UPS masisitimu ekutonga uye data masisitimu.
Miyero yeindasitiri yakaita seSEMI F47 inotsanangura kukwira kwevoltage -kuburikidza nezvinodiwa pamidziyo yekugadzira semiconductor. Zvishandiso zvinofanirwa kushanda pasina kukanganisa kuburikidza nemagetsi sags pasi kusvika pa50% kusvika ku200 milliseconds, ine zvakawanda zvekushivirira macurves ezviitiko zvenguva pfupi.
Data Centers uye Cloud Computing
Nzvimbo dzemazuva ano dzedata dzinoshanda pa99.999% kuwanikwa kwezvinangwa, zvichireva kuti nguva yegore negore inofanira kugara pasi pe5.26 maminetsi. Voltage sags inomiririra kutyisidzira kukuru kune ichi chinangwa. Vashandisi vepanzvimbo yedata hombe vanowanzo tumira matinji akawanda edziviriro: zvinobatsira-giredhi rekugadzirisa magetsi, masisitimu eUPS, nemidziyo-yemwero wemagetsi ane nguva yakawedzerwa-kukwira.
Kuchinja kwakanangana nepamusoro pemagetsi ekuparadzirwa kweDC munzvimbo dzedata (380V DC maringe neyakajairwa 208V AC) inopa kugadzikana kwemagetsi emagetsi nekuti magetsi eDC anogona kufamba nemu AC-maside sag zvine simba kupfuura AC{{3}ku{4}maconverter eDC ari kusangana nesags.
Healthcare Facilities
Zvipatara zvinoda simba risina kumiswa kweupenyu-masisitimu ekuchengetedza. Nepo majenareta ekukurumidzira achigadzirisa kupera kwakazara, haaite nekukurumidza zvakakwana kudzivirira voltage sag kukanganisa. Midziyo yakakosha mumakamuri ekushanda, masutu ekufungidzira, uye nzvimbo dzekuchengetedza zvakanyanya zvinoda sag kugadziridzwa kana kuchengetedzwa kweUPS kuchengetedza kuenderera mberi kwekushanda.
Midziyo yemazuva ano yekurapa ine microprocessor{{0}based controls inoziva zvakanyanya kuvhiringika kwemagetsi. Voltage sag panguva yekuvhiyiwa inogona kuomesa zviratidziro zvemidziyo, huwori hwekuongorora data, kana kukonzera kusetwa kwechigadzirwa kunoda maminetsi kudzoreredza basa rakazara.
Voltage sag protection muzvivakwa zvinoshandisa 48V lithium battery systems-kungava mueBikes, telecom backup, kana renewable energy storage-inoda kutariswa zvese zvemagetsi zvelithium{3}}ion cells nemaprofiles chaiwo. Mabhatiri ane simba repamusoro (akayerwa muamp-maawa) anongogara achiratidza kushomeka kwevoltage pasi peyakaenzana kudhirowa ikozvino nekuti mutoro unogoverwa kune mamwe mapoka emasero anofambirana, kuderedza ikozvino pasero nekudaro kuderedza kuzara kwemukati.
Sezvo masisitimu emagetsi achiwedzera kuomarara neyakagovaniswa chizvarwa, ichiwedzera kudzokororwa kupinda, uye kukura otomatiki, voltage sag icharamba iri yakakosha simba remhando nyaya. Dambudziko riri kukura sezvo michina inova panguva imwe chete inonetseka nekuvhiringidza uye zvakanyanya kukosha kumashandiro.
Matekinoroji emazuva ano ekudzikisa ari kuramba achivandudzika mukugona uye mutengo-unoshanda. Kufambira mberi mumagetsi emagetsi kunogonesa kugadzirisa kwemagetsi nekukurumidza nekukurumidza nguva dzekupindura. Kunatsurudzwa kweruzivo rwekuchengeta magetsi, kunyanya mu capacitor nemabhatiri masisitimu, zvinopa kufamba kwenguva refu-nenguva nemutengo wakaderera. Iko kubatanidzwa kwemagetsi emhando yemidziyo ine smart grid masisitimu inobvumira mhinduro dzakarongeka pamidziyo yakawanda uye kufanotaura kuri nani kwerini uye kupi masags achaitika.
Kune masangano anoongorora njodzi yevoltage sag, pekutangira kunofanirwa kunge kuri kunzwisisa iwo chaiwo emagetsi mhando panzvimbo yavo kuburikidza nekutarisa. Generic indasitiri data nezve sag frequency inopa kukosha kushoma nekuti nzvimbo yega yega inosangana nemamiriro akasiyana zvichienderana nekubatana kwayo kwekushandisa, mitoro yemukati, uye kunzwa kwemidziyo. Kuongorora kwemazuva makumi matatu kusvika makumi mapfumbamwe kunotora mamiriro akajairwa uye kunotaridza kusagadzikana chaiko kugadzirisa nekudzikisira kwakanangwa kwete nzira dzekudzivirira gumbeze.
Mibvunzo Inowanzo bvunzwa
Ndeupi musiyano uripo pakati pevoltage sag uye voltage drop?
Voltage sag chiitiko chechinguvana chinogara milliseconds kusvika kumasekonzi anozvigadzirisa. Voltage drop inoreva kudzikiswa kwakasimba-kwenzvimbo yevoltage kunoitika pamwe nemakondukita nekuda kwekuramba uye kuyerera kwezvino. Voltage inodonha inogara iripo panguva yekuremerwa uye inogadziriswa neyakakodzera conductor saizi panguva yekugadzira system. Voltage sag chiitiko chine simba chemhando yepamusoro chinoda midziyo yekudzivirira kuderedza.
Ko voltage sag kukuvara midziyo zvachose?
Voltage sag pachayo haiwanzo kukonzera kukuvara zvachose nekuti voltage inoramba iri mukati meyakajairika miganhu. Zvisineyi, mashandiro emudziyo pakudzima{1}}kudzima kamwe kamwe, kutangazve mafungu emhepo, kuodzwa kwekudzora kutevedzana{2}}kunogona kukanganisa zvisina kunanga. Zviitiko zvakadzokororwa zvesag zvinomhanyisa kupfeka pane zvinobatika, relays, uye mota windings. Hukuru hwehupfumi hunobva mukurasikirwa kwekugadzira, huwori hwedata, uye kunonoka kutangazve kwete kutsiva mutengo wemidziyo.
Ndinoziva sei kana nzvimbo yangu ine voltage sag dambudziko?
Zviratidzo zvinosanganisira nzendo dzemidziyo isina kutsanangurwa, mitsara yekugadzira inomira inozvichenesa, kuparara kwekombuta, kupenya kwemwenje panguva yekutanga mota, uye kuwedzera kugadzirisa pakudzora masisitimu. Simba remhando yekutarisa rinopa mhinduro dzechokwadi nekutora uye kuratidza sag zviitiko nekufamba kwenguva. Kana midziyo isinganzwisisike ikafamba asi kuyedzwa kwemagetsi kusingaratidzi kukanganisa, voltage sag inogona kunge iri honzeri.
Ko solar panel nemabhatiri masisitimu anobatsira kana kukuvadza voltage sag matambudziko?
Chizvarwa chakagoverwa se solar chinogona kubatsira uye kukuvadza zvichienderana nekuita. Kana grid{{1}mainverter akabatanidzwa akarongwa kuti afambe nemavoltage sags maererano neIEEE 1547 zviyero, anogona kubatsira kutsigira voltage panguva yekusagi nekubaya jekiseni reactive current. Nekudaro, ma inverters echikuru anodimbura panguva yesags anogona kuwedzera dambudziko nekubvisa chizvarwa ipapo pazvinenge zvichidikanwa. Battery simba rekuchengetedza masisitimu ane kudzora kwakaringana anogona kushingaira kudzikisira sags nekubaya chaiyo uye reactive simba panguva yezviitiko, asi chete kana yakanyatsogadzirirwa chinangwa ichi kwete nyore backup simba.
Nei 48V yangu eBike bhatiri ichiratidza kuchaja asi pasina simba?
Iyi yakajairika nyaya inokonzeresa kubva kune voltage sag muiyo48v ebike lithium bhatiripanguva yekudhirowa kwakanyanya. Bhatiri rinogona kuratidza 45V yekuzorora magetsi (inoratidza 30-40% kubhadharisa), asi pasi pemutoro iyo voltage inodonha pazasi peiyo controller's cutoff point ye40-42V, zvichikonzera kudzima. Kuderedza nhanho dzekubatsira kana kubvumira bhatiri kuti rizorore zvishoma kunoita kuti magetsi adzoke zvakakwana kuti arambe achikwira.
