標(biāo)準(zhǔn)號：IEC 62428-2008
中文標(biāo)準(zhǔn)名稱：電力工程.三相交流系統(tǒng)用典型部件.量和變換
英文標(biāo)準(zhǔn)名稱：Electric power engineering - Modal components in three-phase a.c. systems - Quantities and transformations
標(biāo)準(zhǔn)類型：K60
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：K60
國際標(biāo)準(zhǔn)分類號：01.060;17.220.01;29.020
引用標(biāo)準(zhǔn)：IEC 60050-141
適用范圍：This International Standard deals with transformations from original quantities into modalquantities for the widely used three-phase a.c. systems in the field of electric powerengineering.The examination of operating conditions and transient phenomena in three-phase a.c.systems becomes more difficult by the resistive, inductive or capacitive coupling between thephase elements and line conductors. Calculation and description of these phenomena inthree-phase a.c. systems are easier if the quantities of the coupled phase elements and lineconductors are transformed into modal quantities. The calculation becomes very easy if thetransformation leads to decoupled modal systems. The original impedance and admittancematrices are transformed to modal impedance and admittance matrices. In the case ofdecoupling of the modal quantities, the modal impedance and admittance matrices becomediagonal matrices.