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- W2390923600 abstract "To perform electromagnetic transient analysis on a part of a large-scale regional power network by PSCAD/EMTDC,the regional power network has to be divided into two parts,namely the internal network and the external network,and then the equivalent simplification of the external power network is carried out.It is necessary for traditional equivalent methods to establish nodal admittance matrix of the external power network and simplify the network by Gaussian elimination,and it leads to heavy calculation burden.For this reason an equivalent method for regional power network based on short-circuit calculation by Power System Analysis Software Package(PSASP) is proposed,that is,by means of simultaneous short-circuit of all boundary nodes the parameters of injection current sources can be obtained;then by means of short-circuiting boundary nodes one by one,the nodal voltage equations,whose number is the same as the number of boundary nodes,are attained,thus the nodal admittance matrix can be simultaneously solved.Adopting the proposed method,corresponding parameters of boundary nodes can be directly solved and the calculation burden is light.Results of simulation of large-scale regional power network containing UHV transmission line show that the short-circuit current of the original regional power network calculated by PSASP basically conforms to that calculated by equivalent network based on PSCAD/EMTDC,thus the correctness of the proposed method is verified.Finally,the proposed method is compared with traditional static equivalent methods,and the application scope of the proposed method is discussed." @default.
- W2390923600 created "2016-06-24" @default.
- W2390923600 creator A5042239661 @default.
- W2390923600 date "2012-01-01" @default.
- W2390923600 modified "2023-10-03" @default.
- W2390923600 title "An Equivalence Method of Regional Power Network Based on Short Circuit Calculation by Power System Analysis Software Package" @default.
- W2390923600 hasPublicationYear "2012" @default.
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