Knowledge Base

Hardware Key Connection Checklist

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 […]

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June 9, 2025

Regions in PowerWorld Simulator

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 […]

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May 21, 2025

User Defined Model Documentation

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 […]

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March 13, 2025

Time-Step Weather Example

This example shows how historic and forecast ERA5 weather files can be loaded into PowerWorld Simulator and be used to determine the Max MW capability of wind and solar generation. Features such as contouring and geographic data views (GDV) are also applied to enhance visualization and interpretation. The files may be downloaded here. Here is […]

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February 20, 2024

Simple Weather Example

This example introduces the basic functionality of PowerWorld Simulator’s weather integration capability and how other features, such as contouring and geographic data views (GDV), can enhance visualization and interpretation of how the weather can impact wind and solar generation. The files may be downloaded here. To apply the weather data and visualize results: Open the […]

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February 12, 2024

Power Transfer Limit Exceeded by OPF

The Optimal Power Flow (OPF) solution involves iteration between a linear program (LP) to adjust controls (usually generation) and a non-linear power flow. If an AC OPF is performed over a very large Area (or Super Area), the LP may attempt to dispatch generators in a manner that exceeds voltage stability margins (PV) or maximum […]

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October 17, 2023

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 […]

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October 5, 2023

PJM Base Case Setup Process

Motivation: PJM Network Model power flow cases typically have a large generation/load imbalance that result in large positive or negative generation at the island slack bus and distorted flows on nearby lines and transformers. The island slack bus is often located within PJM. A recent example has -6.6 GW at Peach Bottom (PEACHBOT 22.00 kV). […]

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February 17, 2023

N-1-1 Contingency Scenario ATC Analysis

The ATC analysis in Simulator can include a set of contingencies defined in the contingency analysis tool during the ATC calculation.  The key is getting that list of contingencies defined for the N-1-1 contingencies.  Each contingency will have 2 actions defined, which Simulator will evaluate for outages when calculating the sensitivities used for the ATC […]

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March 3, 2021