Knowledge Base

Sample Files PowerWorld Simulator’s Modal Analysis Tool, available with the Transient Stability Add-on, may be used to detect and analyze real and complex modes that occur in signals. Those signals may be read from a plot captured in a prior transient stability simulation, or loaded from an external file (which could represent signals generated from […]

Tags: How-to,Simulator,Transient Stability

April 3, 2026

When PowerWorld products are unlocked with a software key, cached license information is saved to the system so the software can unlock without continually re-loading the key file. If something goes wrong with those files, however, it can prevent the software from running, even when a valid license key has been loaded. In these cases, […]

Tags: How-to,Retriever,Simulator

December 11, 2025

Slides from the Texas A&M Smart Grid Center webinar entitled “All About Power Flow Alternative Solutions Including How to Avoid Them”, delivered on September 3, 2025, may be accessed here. Alternative power flow solutions consist of those solutions that satisfy the non-linear power flow equations but do not represent stable operating points that would occur […]

Tags: Presentation,Simulator,Tutorial

September 3, 2025

In three-phase power systems, transformers with wye-connected windings on one side and delta-connected windings on the other are commonplace, as are three-winding transformers with a combination of wye and delta-connected windings. Such connections introduce phases shifts with multiples of 30°. In a standard (positive sequence) power flow these phase shifts need not be modeled; however, […]

Tags: Documentation,Fault Analysis,GIC,Presentation,Simulator

August 25, 2025

Common Setup Steps Choose a Host Machine Select a machine to host the network-enabled hardware key. This machine must be accessible over the network by all client machines that require access to the key. Install HASP Drivers Install the HASP drivers on both the host machine and all client machines. These drivers are included with […]

Tags: How-to,Retriever,Simulator

June 9, 2025

The “Region” data structure, introduced with PowerWorld Simulator version 24, provides a way to group power system elements by geographic regions. A Region is defined as a polygon with latitude and longitude coordinates of its vertices. Regions may be loaded from shapefiles or auxiliary (*.aux) files, or defined graphically in PowerWorld Simulator. They may also […]

Tags: Documentation,How-to,Presentation,Product,Simulator

May 21, 2025

Sample Files and Code For the Basic User: Sample DLLs and Test Case for Exciter, Governor, Machine, and Stabilizer For the Advanced Developer: GitHub Repository [recommended to Fork and continue your custom development] Has 64 bit build configured for C++ projects in Visual Studio 2019 Sample code projects for Exciter, Governor, Machine, Stabilizer, and Load […]

Tags: How-to,Simulator,Tutorial,User Guide

March 13, 2025

Beginning with version 24, PowerWorld Simulator’s GIC add-on is integrated with the Electric Power Research Institute’s (EPRI) GICHarm tool. The latter performs harmonic analysis on grid connected devices such as capacitor banks to determine if expected geomagnetic induced currents (GICs) could cause them to trip. This integration enables an iterative analysis, summarized by: Using an […]

Tags: GIC,Presentation,Simulator

January 27, 2025

This is the abstract and a link to the presentation associated with the PowerWorld Corporation webinar of Wednesday September 18, 2024. Link to Presentation: Extension of Full Topology Modeling in Simulator Version 24 Title: Extension of Full Topology Modeling in Simulator Version 24 Abstract: PowerWorld Simulator introduced Integrated Topology Processing (ITP add-on) in 2008 to […]

Tags: Integrated Topology Processing,Presentation,Product,Simulator

September 9, 2024

Type C excitation system transient stability models, as per IEEE standard 421.5-2016, have the ability to allow limiters to be added at one of multiple points within the model. The excitation limiters models also allow their own parameters to be modified, in order for them to be compatible with the exciter model that is in […]

Tags: Documentation,Simulator,Transient Stability

May 12, 2024