Knowledge Base

EMP Waveforms Based on Published Research

The newest builds of PowerWorld Simulator with the GIC add-on no longer contain a function to calculate time-varying series voltage inputs for EMP E3A and E3B time and spatial functions based on Oak Ridge National Laboratory (ORNL) research [1] and International Electrotechnical Commission (IEC) standards. Going forward, non-uniform time and spatially varying electric fields will be supported via the “Time Varying Electric Field Inputs” Calculation Mode. Standard file formats include GeoJSON and *.dat (both text formats) and the b3d binary format.

Some standard waveforms based on ORNL and IEC functions are provided below in b3d format. These can be loaded into PowerWorld Simulator on the GIC dialog using the “Time Varying Electric Field Inputs” Calculation Mode. All examples use an event “center” located at 41.9 degrees north latitude, 95.3 degrees west longitude and normalized maximum electric field magnitude of 24 V/km. PowerWorld Simulator also provides tools to shift or scale the field.

Available Waveforms

1. ORNL_F8-3A_F8-3B_F9-F10_24Vkm_953W419N

E3A Time Function: ORNL_Fig 8_3A
E3A Spatial Function: Uniform Westward Field

E3B Time Function: ORNL_Fig 8_3B
E3B Spatial Function: ORNL_Fig9_Fig10

2. ORNL_F8-3A_F8-3B_F9-F10R90_24Vkm_953W419N

E3A Time Function: ORNL_Fig 8_3A
E3A Spatial Function: Uniform Westward Field

E3B Time Function: ORNL_Fig 8_3B
E3B Spatial Function: ORNL_Fig9_Fig10_Rotate90

3. IECUniformWestward_24Vkm_953W419N

E3A Time Function: IEC 61000 2-9
E3A Spatial Function: Uniform Westward Field

E3B Time Function: IEC 61000 2-9
E3B Spatial Function: Uniform Westward Field

Reference

Tags: GIC,How-to,Simulator,Tip

October 5, 2023