Drive pafupipafupi: ofotokoza ndi ndemanga

pafupipafupi pagalimoto lamulo amalola ntchito Converter wapadera flexibly kusintha modes machitidwe a galimoto ndi: kupanga amayamba, siyani, mathamangitsidwe, braking, kusintha liwiro kasinthasintha.

Kusintha pafupipafupi yobweretsa voteji kumabweretsa kusintha mathamangidwe okhota ya maginito ya stator lapansi. Pamene pafupipafupi amachepetsa, injini liwiro amachepetsa, ndipo ukuwonjezeka kolemba.

Mfundo ntchito pafupipafupi Converter pagalimoto

The drawback waukulu ndi zovuta za Motors asynchronous liwiro lamulo njira ochiritsira: kusintha mwa kundipatsako voteji ndi kumayambiriro windings zina mu resistances dera. More chipangizo ndi galimoto pafupipafupi galimoto ndi. M'mbuyo monsemu, ndi converters pricey, koma maonekedwe a IGBT-transistors ndi machitidwe microprocessor ulamuliro walola opanga yachilendo kulenga mtengo wotsika chipangizo. The apamwamba zotheka lero ndi malo amodzi pafupipafupi converters.

The mathamangidwe okhota wa ω stator maginito ₀ kusintha malinga pafupipafupi ƒ ₁ malinga ndi njira:

ω ₀ = 2π × ƒ ₁ / tsa,

kumene tsa - chiwerengero cha mtengo awiriawiri.

njira amapereka ulamuliro see liwiro. Pa liwiro izi injini Pepala si kuchuluka.

Kupeza mkulu mphamvu ntchitoyo injini - dzuwa, mphamvu Chinthu ndi nthawi imapanga zimamuchulukira, pamodzi ndi pafupipafupi kusintha voteji wodalira mtima:

• zonse katundu makokedwe - U ₁ / ƒ ₁ = const;
• Zimakupiza khalidwe katundu makokedwe - U ₁ / ƒ _{February ¹} = const;
• katundu makokedwe ndi inversely molingana ndi liwiro la - U ₁ / √ ƒ ₁ = const.

Nchito awa akuyendera kudzera transducer pamene kusintha pafupipafupi ndi voteji kwa galimoto stator. Kusamala mphamvu ndi kulamulira kudzera zofunika magawo ndondomeko: mpope kuthamanga, mphamvu fani, mlingo chakudya cha makina, etc. The magawo zosiyanasiyana bwino ..

Njira kayendetsedwe pafupipafupi kupatsidwa ulemu ndi synchronous Motors

Pafupipafupi ankalamulira abulusa pamaziko a asynchronous Motors gologolo-khola ndi njira ziwiri ntchito kasamalidwe - scalar ndi vekitala. Mbali yoyamba, imodzi kusintha matalikidwe ndi pafupipafupi yobweretsa voteji.

Izi ndi zofunika kukhalabe injini ntchito koposa zonse - chiŵerengero zonse makokedwe ake pazipita kwa makokedwe resistive. Chifukwa cha kukhala Mwachangu zomwezo ndi mphamvu imayambitsa lonse kasinthasintha osiyanasiyana.

Vekitala kulamulira ndi kusintha munthawi yomweyo mu matalikidwe ndi gawo la pano pa stator lapansi.

Pafupipafupi synchronous mtundu galimoto galimoto ikugwira ntchito pa katundu wochepa, pamene kukula umene umaposa mfundo chovomerezeka ofananira angalephere.

Ubwino wa pagalimoto pafupipafupi

Pafupipafupi kusintha ali lonse osiyanasiyana ubwino poyerekeza ndi njira zina.

1. Zokha olimbana ndi kupanga ndondomeko.
2. Yosalala chiyambi kuchotsa mphulupulu lililonse komwe kumachitika nthawi injini mathamangitsidwe. Kuwonjezeka pagalimoto pafupipafupi ndiponso kudalirika zida ndi kuchepetsa kuchulukana.
3. Kumawonjezera Mwachangu zachuma ndi ntchito galimoto wonse.
4. Kujambula zonse galimoto liwiro popanda chikhalidwe cha katundu, chimene chiri chofunika pa transients. Ntchito maganizo limachititsa kukhalabe zonse injini liwiro pa makhalidwe osiyanasiyana perturbing, makamaka pa katundu alternating.
5. Converters mosavuta Integrated mu kachitidwe luso wogwila popanda kusintha kwambiri ndi kusiya njira. Mphamvu osiyanasiyana n'zochulukadi, koma ndi kuwonjezeka mitengo yawo kwambiri kuchuluka.
6. mwayi wokana variators, reducers, Kukonda Chuma ndi zipangizo zina ulamuliro kapena kukuza osiyanasiyana ntchito yawo. Izi zimachititsa ndithu mphamvu zopulumutsa.
7. Kuchotsa kuipa kwa transients pa zida ndondomeko, monga zodabwitsa hayidiroliki kapena kuthamanga madzimadzi mu payipi pamene kuchepetsa mowa ake usiku.

zolakwa

Ngati inverters onse chastotniki ali magwero a kusokonezedwa. Iwo ayenera kukhala anaika Zosefera.

mtengo Brand ndi mkulu. Izo kumawonjezera kwambiri ndi kuwonjezeka mphamvu ya apparatuses.

kusintha pafupipafupi pamene amakasiya zakumwa

Pa malo amene kulanda unapangidwa madzi ndi zakumwa zina, otaya kusintha anapangidwa kwa gawo lalikulu kudzera mavavu ndi mavavu. Panopa, kulonjezedwa malangizo ndi ntchito pafupipafupi pagalimoto mpope kapena zimakupiza kwa Kanyama masamba.

Ntchito inverter monga fulumizitsa zina amapereka mphamvu zopulumutsa zotsatira 75%. Valavu, woletsa otaya madzi, sachita ntchito zothandiza. Zimenezi imfa mphamvu ndi chinthu mayendedwe ake.

Kuyendetsa pafupipafupi limachititsa kuti akhalebe sanasiye kutiuza pa ogula pamene kusintha mlingo madzi kutuluka. Amatipatsa ku kuthamanga sensa chizindikiro kwa actuator limene limasintha injini rotational liwiro ndipo potero nthawi patsogolo ake pokhalabe anakonzeratu ndalama otaya.

mayunitsi mpope ali imayendetsedwa ndi kusintha ntchito yawo. Mphamvu mowa ku mpope ali kudalira kiyubiki wa ntchito kapena liwiro gudumu. Ngati turnovers kuchepetsa chinthu wa 2, mpope ntchito adzaleka nthawi 8. Pamaso pa ndandanda tsiku la kumwa madzi kudziwa ndalama mphamvu nthawi imeneyi, ngati ulamuliro zokolola pafupipafupi pagalimoto. Chifukwa n'zotheka automate siteshoni ikukoka ndipo potero konza kuthamanga madzi intaneti.

Job mpweya wabwino ndi machitidwe mpweya

The pazipita mpweya otaya mu kachitidwe mpweya wabwino si nthawi zonse zofunikira. zinthu opaleshoni kungafune nsembe ntchito. Anatinso imeneyi imagwira throttling pamene gudumu liwiro sichitha. Ndi yabwino kwambiri kusintha mlingo mpweya otaya chifukwa pafupipafupi ankalamulira pagalimoto pamene kusintha nyengo ndi nyengo zinthu, kutentha, chinyezi, nthunzi ndipo mpweya wonunkha.

Mphamvu zopulumutsa mu mpweya ndi mpweya machitidwe zimatheka osati poyerekeza wa malo ikukoka, kuyambira rotational mowa mphamvu ndi ntchito kiyubiki wa liwiro.

zida inverter

Modern pafupipafupi pagalimoto dera zoti pa Converter awiri. Amakhala ndi rectifier ndi zimachitika inverter ndi dongosolo la ulamuliro.

Pambuyo rectification ankawachotsera voteji mbendera ndi osasankhidwa ndi kudyetsedwa kwa inverter ndi masiwichi asanu michenga yopangira zida zamagetsi, mmene aliyense wa iwo chikugwirizana kwa stator windings wa galimoto kupatsidwa ulemu. Unit otembenuka kudzatha chizindikiro mu gawo Napempha kwa pafupipafupi ndi matalikidwe. masiteji mphamvu IGBT-Transistors linanena bungwe mkulu kusinthitsa pafupipafupi ndipo amapereka bwino amakona anayi chizindikiro popanda kukhota. Chifukwa kusefa katundu wa galimoto kumulowetsa panopa pamapindikira mawonekedwe pa linanena bungwe lawo ndi sinusoidal.

Njira matalikidwe kusintha mbendera

Ukulu wa voteji linanena bungwe ndi Lamulo njira ziwiri:

1. Matalikidwe - kusintha mtengo voteji.
2. Kugunda m'lifupi kusinthasintha mawu - njira kusintha pulsed chizindikiro pa zomwe zimasintha m'litali, ndi pafupipafupi akhala sichinasinthe. mphamvu Pali zimadalira zimachitika m'lifupi.

Yachiwiri njira amagwiritsidwa ntchito kwambiri ponena za chitukuko cha luso microprocessor. inverters Modern amapangidwa pa maziko a zokhoma GTO-thyristors kapena IGBT-transistors.

Mwayi ndi ntchito converters

Pafupipafupi pagalimoto lili ndi zinthu zambiri.

1. Pafupipafupi kulamulira atatu gawo kotunga voteji ku ziro 400 Hz.
2. Mofulumira kapena deceleration ya magetsi galimoto ya masekondi 0.01. kwa mphindi 50. ndi malamulo anapatsidwa nthawi (kawirikawiri - liniya). Pamene mathamangitsidwe n'zotheka osati kuti ndichepe, koma kuwonjezera 150% kuyambitsa makokedwe ndi zazikulu.
3. Chigamulocho galimoto ndi anakonzeratu mathamangitsidwe ndi deceleration modes kwa liwiro analakalaka malangizo ena.
4. The converters ntchito chosinthika chitetezo pakompyuta ndi dera lalifupi, zimamuchulukira, dziko kutayikira ndi akuswa mizere galimoto okwanira.
5. Converters pa kusonyezedwa digito ankafotokozedwa deta za magawo awo: pafupipafupi, voteji, mphamvu, liwiro, otaya, ndi ena.
6. The converters ndi kusintha makhalidwe panopa-pafupipafupi malingana ndi zimene zimafunika katundu injini. ulamuliro machitidwe ntchito potengera iwo operekedwa ndi anthu opha adakwera.
7. Pakuti mafurikwense otsika n'kofunika kugwiritsa ntchito ulamuliro vekitala, kulola ntchito ndi galimoto makokedwe zonse kukhalabe liwiro nthawi imene katundu kusintha kulamulira kutsinde makokedwe. Pafupipafupi kusintha zida amagwira ntchito bwino ndi oyamba kabwino ka nameplate deta galimoto, ndi kutsatira bwino kuyezetsa ake. Mumadziwika mankhwala makampani Hyundai, Sanyu, ndi ena.

Mfundo ya converters zotsatirazi:

• mapampu mu madzi otentha ndi ozizira ndi kutentha;
• sludge, mchenga ndi Zamkati mapampu concentrators;
• Ndikuuzani machitidwe: conveyors, conveyors wodzigudubuza, ndi njira zina ;.
• stirrer, mphero chopukusira extruders, dispensers Feeders;
• centrifuge;
• zikepe;
• zida zitsulo;
• zida pobowola;
• makina magetsi;
• excavator ndi Crane zida, asilikali a manipulators.

Opanga inverters pafupipafupi, ndemanga

wopanga zoweta wayamba kale kupanga oyenera ogwiritsa quality ndi mtengo. Ubwino ndi mphamvu mofulumira makina lamanja, ndi malangizo mwatsatanetsatane atakhala.

Company "dongosolo Kugwiritsa" umabala mankhwala siriyo ndi zida odziwa phwando. Zamgululi ntchito ntchito zapakhomo, tochepa ndi mafakitale. Wopanga "Vesper" umabala mndandanda seveni converters, monga Mipikisano zinchito, oyenera makina kwambiri mafakitale.

Mtsogoleri kupanga ndi Chidanishi chastotnikov ku Danfoss. zopangidwa ntchito mu kachitidwe mpweya, kondtsionirovaniya, madzi ndi magetsi. The kampani Chifinishi ndi Vacon, zomwe ndi mbali ya Chidanishi, manufactures nyumba yodziyimira payokha, kumene inu angamange zipangizo zofunika popanda mfundo zosafunika wakupatsani kupulumutsa pa zigawo zikuluzikulu. Palinso converters nkhawa mayiko ABB, ntchito mafakitale ndi moyo watsiku ndi tsiku.

Tikayang'ana ndemanga, pakuti zing'onozing'ono chizolowezi, mungagwiritse ntchito wotchipa converters zoweta ndi mtundu zosowa zovuta, amene ali options kwambiri zambiri.

Pomaliza

Kuyendetsa pafupipafupi akulamulira galimoto ndi kusintha pafupipafupi ndi matalikidwe a kusowa voteji, motero kuteteza zolakwa: zimamuchulukira, dera lalifupi, kupitiriza kwa magetsi. Chotero actuators magetsi ntchito zitatu kugwirizana ndi mathamangitsidwe, braking ndi injini liwiro. Izi bwino ndi dzuwa la zida m'madera ambiri a sayansi.