Dadi na ABCD Parameters?

ABCD Parametarin Da Nufin?

Takardun ABCD Parametari

ABCD parametari suna amfani da su wajen kudin linyan gurbin da ke tsara shi a faduwar biyu, inda suke hada sabon kofin da yanayi.

ABCD parametari (ko kuma an yi takarda chain ko transmission line parametari) suna nuna abubuwa masu circuit da ake amfani da su wajen taimaka wajen kudin linyan gurbin. Yana daga baya, ABCD parametari suna amfani a cikin faduwar biyu na network ta kudin linyan gurbin. Kafin wannan faduwar biyu yana nuna a cikin bayanan:

ABCD Parametari Na Faduwar Biyu Network

Faduwar biyu network yana da port in ci PQ da port out RS. A cikin wannan 4-terminal network—linear, passive, da bilateral—kofin da yanayi na ci yana haɗa da mawaƙarren kofin da yanayi. Har port ya kunshi waɗannan terminal biyu don hanyar konektarwa a cikin circuit mai gaba. Saboda haka, yana zama faduwar biyu ko 4-terminal circuit, wanda yake da:

An bayar da ita zuwa port in ci PQ.

An bayar da ita zuwa port out RS.

Sai dai, ABCD parametari na linyan gurbin suna ba da alaka a kan kofin da yanayi na ci da mawaƙarren kofin da yanayi, idan ana ɗaukar elementoin da suka fi linear.

Saboda haka, alakan da ke duni a kan specification na ci da mawaƙarren kofin da yanayi an samun shi a kan equations da aka bayar a cikin ABCD parametari. Idan muna son sanin ABCD parametari na linyan gurbin, za a iya haɗa shiga imkanan circuit a wasu haloyi.

Bincike Open Circuit

Idan mawaƙarren kofin da yanayi ta zama open, parameter A yana nuna ratio na voltage, da C yana nuna conductance, wadannan muhimmanci a kan bincike system.

Mawaƙarren kofin da yanayi ta zama open-circuited, meaning IR = 0. Idan muna haɗa shiga wannan imkan a equation (1) za a iya samun:

Saboda haka, idan muna haɗa shiga imkanin open circuit zuwa ABCD parametari, za a iya samun parameter A a matsayin ratio na sending end voltage zuwa receiving end voltage. Idan a nemi dimension-wise, A yana zama parameter mai ban sha'awa.

Idan muna haɗa shiga imkanin open circuit i.e IR = 0 zuwa equation (2)

Saboda haka, idan muna haɗa shiga imkanin open circuit zuwa ABCD parametari, za a iya samun parameter C a matsayin ratio na sending end current zuwa receiving end voltage. Idan a nemi dimension-wise, C yana zama ratio na current zuwa voltage, saboda haka, unitshinsa ita ce mho.

Saboda haka, C yana zama open circuit conductance da ake bayar da shi a cikin:

C = IS ⁄ VR mho.

Bincike Short Circuit

Idan mawaƙarren kofin da yanayi ta zama short-circuited, parameter B yana nuna resistance, da D yana nuna ratio na current, wadannan muhimmanci a kan checks na safety da efficiency.

Mawaƙarren kofin da yanayi ta zama short circuited, meaning VR = 0. Idan muna haɗa shiga wannan imkan a equation (1) za a iya samun:Saboda haka, idan muna haɗa shiga imkanin short circuit zuwa ABCD parametari, za a iya samun parameter B a matsayin ratio na sending end voltage zuwa receiving end current. Idan a nemi dimension-wise, B yana zama ratio na voltage zuwa current, saboda haka, unitshinsa ita ce Ω. Saboda haka, B yana zama short circuit resistance da ake bayar da shi a cikin:

B = VS ⁄ IR Ω.

Idan muna haɗa shiga imkanin short circuit i.e VR = 0 zuwa equation (2) za a iya samun:Saboda haka, idan muna haɗa shiga imkanin short circuit zuwa ABCD parametari, za a iya samun parameter D a matsayin ratio na sending end current zuwa receiving end current. Idan a nemi dimension-wise, D yana zama parameter mai ban sha'awa.

∴ ABCD parametari na linyan gurbin zai iya tabular a cikin:

Amfani Da Ita a Cikin Tsarin

Fahimtata ABCD parametari na medium transmission line yana zama muhimmanci ga masu engineering don hana inganta kudin power da kyau da kula da system reliability.