No ka lehulehu ka ʻōnaehana lako mana o ka haukapila, ʻo ia ka pūnaehana hoʻolako mana o nā wahi āpau.Hoʻohana ka hoʻolālā hale haukapila i ke ʻano semi-centralized, a ʻo ka ukana uila no kahi papa o ka ukana.ʻO kāna mau ʻano uila nui: ʻōnaehana kukui, ʻōnaehana ea, ʻōnaehana mana olakino, ʻōnaehana kukui pilikia.
ʻO ke kukui a me ka ʻōnaehana ea ka mana nui o nā ʻano o ka hoʻohana ʻana i ka uila o ka haukapila, kahi e hoʻopuka ai i nā pane harmonic nui i ka mana o ka haukapila i ka wā e hoʻohana ai.Ma muli o ka hoʻohana ʻana i nā ʻano uila hou e like me ka mīkini X-ray, ka mīkini resonance magnetic MRI, ka mīkini CT, a me nā mea ʻē aʻe, ka hoʻohana ʻana i ka mana hoʻololi, UPS uninterruptible a me nā mea he nui o nā haʻahaʻa nonlinear. ka mana mana.
He kiʻekiʻe kiʻekiʻe ka hoʻohana ʻana o ka uila i ka haukapila, a palekana a hilinaʻi hoʻi ka ʻōnaehana ʻo ke kumu kumu.Ma muli o ka hoʻohana nui ʻana i ka ukana nonlinear, ua hana nui ʻia nā ʻano harmonics o 3rd, 5th a me 7th order ma ka pūnaewele mana o ka haukapila.Hoʻopili pololei ʻo Harmonics i ka hana paʻa o nā mea lapaʻau precision, a ʻo ka hōʻiliʻili ʻana o 3 harmonics ma ka laina kūʻokoʻa e hoʻoulu ai i ka wela ma ka laina waena, kahi e hoʻoweliweli ai i ka hana palekana o ka mana o ka haukapila.
2. Ka wehewehe a me ka hoʻokumu ʻana o nā harmonics
ʻO ka wehewehe ʻana o nā harmonics: ka decomposition Fourier series o ka nui sinusoidal nonlinear periodic, me ka loaʻa ʻana o ka ʻāpana like me ke alapine kumu o ka mana mana, akā he pūʻulu o nā ʻāpana ʻoi aku ka nui ma mua o ka nui integral o ke alapine kumu o ka mana. grid, kapa ʻia kēia ʻāpana o ka uila he harmonics.
Hoʻokumu i nā harmonics: Ke kahe ka manawa ma o ka haʻawe, aia kahi pilina nonlinear me ka voltage haʻahaʻa, kahi i hana ai i kahi au non-sinusoidal, e hopena i nā harmonics.
3. Ka pōʻino o ka harmonics
1) Ke alakaʻi nei ʻo Harmonics i ka hiki ʻole o ka mana a me nā ulia pōpilikia i hoʻokumu ʻia e ka hana hewa ʻole a hōʻole paha i ka pale a me nā mea hana maʻalahi, e hopena i nā poho hou.
2) ʻO ka hoʻonui ʻana i ka pinepine o ka harmonic i kēia manawa ke kumu i ka hopena o ka ʻili, ka mea e hoʻonui ai i ke kūʻē ʻana o nā uea o nā uwea mana a me nā laina hāʻawi, hoʻonui i ka nalowale o ka laina, hoʻonui i ka wela, ka wā kahiko o ka insulation, pōkole ke ola, hana ʻino, a hiki i ka lepo pōkole ka hewa, hana i kahi pilikia ahi.
3) Hoʻoulu i ka resonance grid mana, alakaʻi i ka volta harmonic a me ka overcurrent, hoʻoulu i nā pōʻino koʻikoʻi, hōʻino i ka uku capacitor a me nā mea uila ʻē aʻe.
4) Hoʻopili ka Harmonics i ka hana maʻamau o nā mea uila like ʻole.Ke alakaʻi nei ia i nā poho hou a me ka wela o nā kaʻa asynchronous a me nā transformers, a ukali ʻia e ka haʻalulu mechanical, ka walaʻau a me ka overvoltage, e hōʻemi ana i ka pono a me ka hoʻohana ʻana, a me ka pōkole o ke ola lawelawe.
5) Hoʻopilikia i ke kamaʻilio pili ʻana, nā lako uila a i ʻole nā mea hoʻokele aunoa, a i ʻole hiki ke hana maʻamau.
4. Hoʻolālā kānana
ʻO ka Hale Hōʻikeʻike ʻo Shaanxi Central kahi hale maʻi papa lua A me nā lako lapaʻau kiʻekiʻe a me ka ʻoihana haukapila maikaʻi loa.Ua hāʻawiʻia kā mākou mau limahana limahana a me kaʻenehana e ka haukapila i ka wā mua e ana i ka maikaʻi o ka mana o ka mana haʻahaʻa haʻahaʻa o ka haukapila.ʻO ka nui o ka distortion rate o kēia manawa i ka mana o ka haukapila he 10%, ka hapanui i puʻunaue ʻia ma nā ʻano harmonics o 3rd, 5th a me 7th order.Wahi a nā hopena hoʻāʻo, ua hoʻonohonoho kā mākou hui i kahi hoʻonohonoho o 400A mea kānana ikaika no ka haukapila, i hoʻokomo ʻia ma ka ʻaoʻao puka puka haʻahaʻa transformer, ka hoʻohana ʻana i ka mālama kikowaena no ka mana harmonic.
5 kānana ʻeleu (/690v-active-power-filter-product/)
5.1 Hoʻolauna Huahana
ʻO kāna kānana Active Power (/noker-3-phase-34-wire-active-power-filter-apf-ahf-for-dynamic-harmonics-compensation-product/) he ʻano hou o ka mana uila i hoʻohana ʻia no ka hoʻopau ʻana i nā harmonics a hoʻopaʻi i ka mana reactive, hiki ke uku i nā harmonics a me nā hoʻololi mana reactive i ka nui a me ka pinepine.
5.2 Kumu Hana
ʻIke ʻia ka ukana o kēia manawa i ka manawa maoli e ka CT o waho, a ua helu ʻia ka waiwai harmonic e ka DSP kūloko.Ma o ka hōʻailona PWM e hoʻouna ʻia i ka IGBT, hoʻopuka ka mea hoʻohuli i ka manawa harmonic e like me ka haʻahaʻa haʻahaʻa a ma ka ʻaoʻao ʻē aʻe i loko o ka mana mana e hoʻopau i ka harmonic a hoʻokō i ke kumu o ka hoʻomaʻemaʻe ʻana i ka mana mana.
6 .Ka nānā ʻana a me ka nānā ʻana i ka ʻikepili hoʻomalu harmonics i nā haukapila
Aha Kuhina APF
ʻO ka ʻikepili o APF(/harmonics-compensation-200400v-active-harmonic-filter-ahf-module-triple-phase-product/)harmonic compensation i loko o ka haukapila i nānā ʻia e ka power quality analyzer CA8336 o Farani, a me ka ʻikepili o ka mana. ua ho'āʻoʻia ma lalo o nā kūlanaʻelua o ka hana APF (ma hope o ka uku) a me ka paniʻana (me ka ukuʻole), a ua hōʻuluʻuluʻia a nānāʻia nāʻikepili.
6.1 Ke ana a me ka nānā ʻana o nā APF (/3-phase-3-wire-active-power-filter-400v-75a-apf-panel-product/) hoʻokomo a wehe i ka ʻikepili.
1: Ka waiwai kūpono o ka holo ʻana i kēia manawa
2:THi ma mua o ka hoʻopili ʻana i ke kānana Active
3:THi ma hope o ka hoʻopili ʻana i ka kānana Active
4：THi mai ka lā 1 a i ka 5 ma mua o ka hoʻopili ʻana i ka kānana Active
5：THi mai ka lā 1 a i ka 5 ma hope o ka hui ʻana o ka kānana Active
6：THi mai ka lā 1 a i ka 7 ma mua o ka hoʻopili ʻana i ka kānana Active
7：THi mai ka lā 1 a i ka 7 ma hope o ka hui ʻana o ka kānana Active
Ka hopena:
| APF | THDi（ huina） | THDi（5th） | THDi（7th） |
| Ma mua o ka hoʻopili ʻana o APF | 10% | 9% | 3.3% |
| Ma hope o ka pili ʻana o APF | 3% | 3% | 0.5% |
E like me ka mea i hōʻike ʻia ma ka kiʻi ma luna, ua ana ʻia ka mana harmonic o ka haukapila e AHF(/low-voltage-active-power-filter-reduce-the-harmonic-current-active-harmonic-filter-ahf-product/) me ka mea hoʻonaʻauao mana maikaʻi ʻoihana CA8336 o Farani.Ua hoʻāʻo ʻia ka hoʻohālikelike o ka ʻikepili ma mua a ma hope o ka APF.Ma hope o ka hoʻohana ʻana i kā mākou APF no ka mana harmonic, ua hoʻemi ʻia ka huina distortion rate (THDi) o ka pūnaewele mana o ka haukapila mai 10% a i 3%, a ʻoi aku ka nui o ka hopena.
7. Hōʻuluʻulu manaʻo
He mea koʻikoʻi ka ʻōnaehana lako mana o ka haukapila.ʻO ka hoʻokomo ʻana i nā mea uila hou ua hoʻomaikaʻi maikaʻi i ka maikaʻi o ka lāʻau lapaʻau a me ka maikaʻi o ka haukapila, a hāʻawi pū i kahi ʻano lapaʻau maikaʻi no ka hapa nui o nā maʻi.Akā ʻo ka ukana mana hou e lawe mai i ka pollution harmonic.Hoʻopilikia ka noho ʻana o nā harmonics i ka hana maʻamau o ka mana o ka haukapila a pili i ka paʻa o nā lako lapaʻau pololei.Ma ke ʻano he ʻāpana o ka ʻōnaehana mana lehulehu, hoʻonui ka harmonics i ka hoʻohana ʻana i ka uila ma nā halemai, ʻaʻole kūʻē i ka ʻōlelo ʻāina o ka paipai ʻana i ka mālama ʻana i ka ikehu.
Ma hope o ka hoʻokomo ʻia ʻana o kā mākou kānana hana, hoʻomaikaʻi nui ia i ka maikaʻi o ka mana o ka haukapila, hoʻopau i nā pōʻino palekana, hoʻomaikaʻi i ka ikehu uila palekana a maʻemaʻe no nā lako lapaʻau, a i ka manawa like e noʻonoʻo ai i ka mālama ʻana i ka ikehu a me ka hoʻemi ʻai.
Ka manawa hoʻouna: Oct-16-2023