G. Gross, H. W. Hong

Research output: Contribution to conferencePaper


The paper reports the development of a unified approach for the solution of all types of short circuit problems. The basic approach is to consider a fault condition - a fault type or combination of fault types and associated line outages - as modifications to the parameters of the branches of the prefault network. An extension, referred to as the two-step compensation method, of the conventional compensation scheme was developed to account for the balanced and unbalanced nature of the modifications that networks undergo when faulted. The computationally efficient solution scheme was derived by using a decomposition of the modifications according to their balanced and unbalanced nature and exploiting the structural properties of the short circuit problem, notably sparsity. The authors have developed SHOCAP (SHOrt Circuit Analysis Package) which implements the two-step compensation scheme discussed in this paper. SHOCAP is a production grade software package that can be used for studying short circuits on systems with up to 3000 buses, 4000 lines and 1000 mutual couplings. Results of the application of this approach to investigate a variety of fault conditions on several systems including a 2278 bus network, are presented.

Original languageEnglish (US)
StatePublished - Jan 1 2017
EventIEEE Power Eng Soc Summer Meet, Conf Pap - Portland, OR, USA
Duration: Jul 26 1981Jul 31 1981


OtherIEEE Power Eng Soc Summer Meet, Conf Pap
CityPortland, OR, USA


ASJC Scopus subject areas

  • Engineering(all)

Cite this

Gross, G., & Hong, H. W. (2017). TWO-STEP COMPENSATION METHOD FOR SOLVING SHORT CIRCUIT PROBLEMS.. Paper presented at IEEE Power Eng Soc Summer Meet, Conf Pap, Portland, OR, USA, .