Ma muli o ka ʻike o ka ʻike mana maikaʻi, ke koho mākoukānana harmonic active, hoʻohana maʻamau ʻia nā ʻano ʻelua e hoʻohālikelike i ka hiki o ka hoʻopau harmonic.
1.Centralized governance: E hoʻohālikelike i ka mana hoʻonohonoho o ka hoʻokele harmonic e pili ana i ka hoʻohālikelike ʻana i ka ʻoihana a me ka mana transformer.
S---- ka mea hoʻololi i helu ʻia, U---- i helu ʻia ma ka ʻaoʻao ʻelua o ka U-transformer
Ih---- Harmonic current, THDi----Total distortion rate of current current, me ka laulā o nā waiwai i hoʻoholo ʻia ma muli o nā ʻoihana like ʻole a i ʻole nā ukana.
K---- Ka hoʻouka ʻana o ka mea hoʻololi
| ʻAno ʻoihana | Ka nui o ka distortion harmonic maʻamau% |
| Subway, Tunnels, High-speed trains, Airports | 15% |
| Kūkākūkā, hale kūʻai, Banako | 20% |
| ʻOihana lapaʻau | 25% |
| Hana kaʻa, hana moku | 30% |
| Chemical\Petroleum | 35% |
| ʻOihana metallurgical | 40% |
2. Ma ka pae hoʻomalu: E hoʻohālikelike i ka mana hoʻonohonoho o ka hoʻokele harmonic e pili ana i nā lawelawe ukana like ʻole.
Ih---- ʻO ke au Harmonic, THDi---- Ka huina distortion o kēia manawa, me ka laulā o nā waiwai i hoʻoholo ʻia ma muli o nā ʻoihana like ʻole a i ʻole nā ukana.
K--- Ka hoʻouka ʻana o ka mea hoʻololi
| ʻAno hoʻouka | Maʻiʻo harmonic maʻamau% | ʻAno hoʻouka | Maʻiʻo harmonic maʻamau% |
| Mea hoʻohuli | 30---50 | Hāʻawi mana hoʻomehana induction frequency medium | 30---35 |
| Elevator | 15---30 | ʻEono pulse rectifier | 28---38 |
| Nā kukui LED | 15---20 | He ʻumikūmālua pulse rectifier | 10---12 |
| Ke kukui mālama ikehu | 15---30 | Mīkini wiliwili uila | 25---58 |
| ʻĀpana uila | 15---18 | ea ea alapine like ole | 6----34 |
| Ke hoʻololi nei i ka mana mana | 20---30 | UPS | 10---25 |
'Ōlelo Aʻo: ʻO nā helu ma luna nei he mau kumu hoʻohālikelike no ka ʻike.
Ke koho mākoumīkini hana var statik, hoʻohana maʻamau ʻia nā ʻano ʻelua e hoʻohālikelike i ka hiki o ka uku mana reactive.
1. Estimate ma muli o ka mana transformer:
Hoʻohana ʻia ka 20% a hiki i ka 40% o ka mana transformer e hoʻonohonoho i ka mana uku uku reactive, me kahi koho maʻamau o 30%.
Q=30%*S
Q----Reactive mana uku uku, S ---- Transformer kaha
No ka laʻana, ua hoʻolako ʻia kahi transformer 1000kVA me ka uku mana reactive 300kvar.
2.Calculate ma muli o ke kumu mana a me ka mana hana o nā mea hana:
Inā loaʻa nā palena haʻahaʻa kikoʻī, e like me ka mana ikaika nui P, ka mana COSO ma mua o ka uku, a me ka mana kumu COSO ma hope o ka uku, hiki ke helu pololei ʻia ka mana uku maoli i koi ʻia no ka ʻōnaehana.
Q----Reactive mana uku mana, P----Maximum ikaika hana
K---- ʻAwelika hoʻouka coefficient (maʻamau i lawe ʻia e like me 0.7--0.8)
'Ōlelo Aʻo: ʻO nā helu i luna no ka ʻike wale nō.
Hoʻokumu ʻo Noker Electric i ka hāʻawi ʻana i nā mea kūʻai aku me ka systematic reactive power compensation and harmonic control solutions, nā nīnau i ke koho huahana, ʻoluʻolu ʻoe e hoʻokaʻaʻike mai iā mākou.
Ka manawa hoʻouna: Dec-08-2023