On automating lightning analysis methods

Summary form only given. This paper presents a new method (LIPS) for automating lightning analysis in power systems. LIPS (Lightning Impact on Power Systems) relies on a specialized transient analysis package, such as EMTP, for computing the random nature of lightning and allowing a probabilistic insulation coordination approach to be performed, as it is recommended in IEC 60071. LIPS acts as a front-end for defining the probabilistic study, making modeling choices and submitting simulation cases. The transient analysis software acts, as a simulation server with results returned into LIPS for risk estimation. LIPS is designed for both direct and induced lightning studies. Its main approach and underlying methods are discussed. LIPS provides significant economical advantages in design and study procedures: it reduces the time required to prepare and conduct lightning studies; it provides an automated environment for retracing performed studies and related data; and it allows documentation and clarification procedures used by expert engineers