Te Mātāpono Mahi o ngā Tīmatanga Ngāwari (He Whakamārama Ngaio mō te Whakawhitiwhiti Kōrero Hangarau Tauhokohoko ki Tāwāhi)
He tīmatanga ngohengohe (Pāniora: arrancador suave) he taputapu whakahaere mō ngā motuka hiko AC, ko tana mahi matua ko hei whakatutuki i te tīmatanga me te whakamutu pānga iti mā te whakahaere maeneene i te ngaohiko o te pito o te motuka. Ka ārai i te kino o ngā motuka, ngā whatunga hiko, me ngā taputapu kawenga i puta mai i te nui o te iahiko e tomo mai ana i te wā e tīmata tika ana, ā, e whakamahia whānuitia ana i roto i Taputapu Ahumahi pērā i ngā papu, ngā pā hau, ngā pūwero hau, me ngā kaikawe.
Mātāpono Mahi Matua: Whakahaere i te Ara Whakatere Ngaohiko (Tikanga Tino Noa)
Ko te wāhanga matua o tētahi Tīmatanga Ngāwari heTriacrānei kōwae thyristor anti-whakarara(e rua ngā rōpū thyristors e hono whakamuri ana kia tutuki ai te kawe hiko AC e rua ngā taha). Ko tōna arorau mahi e hangai ana ki te mātāpono "rōnaki ngaohiko", me te tukanga motuhake penei:
- Wāhanga Tīmatanga:
- Ina honoa te mōta ki te Pūtake Hiko, ka āta whakanuia e te tīmatanga ngohengohe te koki kawe hiko (huringa mahi) o te thyristor mā roto i te ara iahiko whakahaere hiko, kia piki ake ai te ngaohiko e pā ana ki te takai stator motuka mai i te 0 ki te ngaohiko kua whakatauria (ka taea te whakarite i te pihi piki ngaohiko, pērā i te rārangi, te taupū rānei).
- He rite te taipana o te motuka ki te tapawhā o te ngaohiko (T∝U²). Ina piki haere te ngaohiko, ka piki haere hoki te taipana, ā, ka tere haere te tere o te motuka mai i te okiokinga ki te tere kua tohua (ko te tikanga 3-30 hēkona, ka taea te whakarerekē i runga i te kawenga).
- Ki te whakataurite ki te tīmatanga tika (ka pā tonu te ngaohiko ki te uara whakatauranga, ā, ka taea e te ia tīmatanga te eke ki te 5-8 ngā wā o te ia whakatauranga), ka taea e te tīmatanga ngohengohe te whakawhāiti i te ia tīmatanga ki te 1.5-4 ngā wā o te ia whakatauranga, ka tino whakaiti i te pānga o te ia.
- Wāhanga Whakahaere:
- Kia eke te motuka ki te tere kua whakaritea, ka rere katoa te hiko o te thyristor o te tīmatanga ngohengohe (he rite ki te ara iahiko poto), ā, ka hono tika te motuka ki te whatunga hiko hei whakahaere. I tēnei wā, kāore he kaha e pau ana i te tīmatanga ngohengohe, ā, ka kore e roa te wera.
- Ko ētahi tauira papai he taputapu whakapā taha. Kia oti te tīmatanga, ka kumea te whakapā hei whakakapi i te thyristor mō te kawe hiko, hei whakapai ake i te pono me te whakaiti i ngā mate.
- Wāhanga Whakamutu:
- Whai muri i te whiwhinga o te tohu mutu, ka whakaitihia mārire e te tīmatanga ngohengohe te koki kawe o te thyristor, ka heke mārire te ngaohiko o te pito o te motuka, ā, ka heke mārire te tere ki te mutu (Mutu NgāwariMā tēnei ka karohia te pānga o te koretake o te kawenga i puta mai i te aukati ohorere (pērā i te pānga hama wai o ngā papu me te reti o ngā rauemi o ngā kaikawe).
Ngā Āhuatanga Hangarau Matua (I Whakarerekētia mō te Whakawhitiwhiti Kōrero mō ngā Tawhā Hangarau Tauhokohoko ki Tāwāhi)
- Te Herenga o te Tīmatanga o nāianeiMā te whakatakoto i te paepae iahiko tīmatanga mōrahi, ka ārai i te hekenga o te ngaohiko o te whatunga hiko, ā, ka tiaki hoki i te takai motuka mai i te pānga o te iahiko teitei.
- Te Whakatikatika i te Rōnaki NgaohikoKa taea te whakarite i te wā pikinga ngaohiko (0-30 hēkona) kia urutau ki ngā āhuatanga kawenga rerekē (hei tauira, he roa te wā pikinga e hiahiatia ana mō te tīmatanga kawenga taumaha).
- Ngā Mahi Tiaki: Whakauru Te Parenga Taumaha, te tiaki i te ngaronga ā-wāhanga, te tiaki i te ngaohiko nui/ngaohiko iti, te tiaki i te wera nui, me ētahi atu. Ka tere te tapahi i te pūtake hiko me ngā whakaoho mēnā he hapa.
- Ngā Momo Mōta e Pā AnaE tika ana mō ngā motuka hiko AC toru-wāhanga anake (momo whare-kiore), kāore mō ngā motuka DC, ngā motuka tukutahi, ngā motuka rotor-whiu rānei.
- Rerekētanga mai i ngā Inverters (VFD)(Pātai Auau-Teitei i roto i te Whakawhitiwhiti Kōrero Tauhokohoko ki Tāwāhi):
| Tūemi Whakataurite | Tīmatanga Ngāwari | Puku Auautanga Taurangi (VFD) |
| Mahi Matua | Tīmatanga/mutu mārire anake | Tīmatanga ngawari + whakahaere tere + whakahaere penapena-pūngao |
| Kaupapa Mahi | Te whakahaere ngaohiko (auau pumau) | Whakahaere ngaohiko + auau (whakahaere V/F) |
| Te Whakamahinga Mana Whakahaere | Kāore he whakamahinga hiko i muri i te tīmatanga | Te whakapaunga hiko mō te wā roa (tata ki te 3-5%) |
| Utu | Raro (tata ki te 1/3-1/2 o te VFD) | Teitei ake |
| Ngā horopaki e tika ana | Ngā taputapu kāore he whakahaere tere (ngā papu, ngā pā, ngā pūwero) | Ngā taputapu e hiahia ana kia whakatikatikahia te tere (ngā kaikawe, ngā taputapu mīhini, ngā ararewa) |
Ngā Horopaki Taupānga Noa (E hangai ana ki te Whakawhitiwhiti Kōrero Pakihi Tauhokohoko ki Tāwāhi)
- Ngā Papu/Ngā Pā: Āta karohia ngā rerekētanga o te whatunga hiko e puta mai ana i te pānga o te iahiko tīmatanga, me te whakaiti i te pānga o te hama wai/te ātete hau i te wā e tū ana;
- Ngā Pūwero/Ngā Pūwero Hau: Whakaitihia te kawenga ā-mīhini i te wā e tīmata ana, ā, tiakina ngā wāhanga pēnei i ngā rango me ngā piston;
- Ngā Kawe: Ārai i te paheke o ngā rauemi i te wā e tīmata ana, ā, kia maeneene te aukati i te wā e tū ana;
- Ngā Utauta Mīhini/Kaupapa Papu: He pai mō ngā mīhini whānui kāore e hiahia kia whakatikatikahia te tere engari e pāngia ana e te pānga tīmatanga.
Mena me whakarerekē e koe ngā tawhā hangarau motuhake (pēnei i te awhe ngaohiko, te whakatauranga o ia au, te tikanga whakahaere rānei o tētahi tauira tīmatanga ngohengohe) mō ngā whakawhitiwhitinga hokohoko ki tāwāhi (hei tauira, te whakamāori īmēra, te whakamāori tawhā), tēnā whakaratohia mai ngā ihirangi motuhake hei āwhina atu!