Knowledge Base

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

NERC Book of Flowgates

A spreadsheet template for importing interfaces from the NERC Book of Flowgates (2018 edition) may be downloaded here. To use the spreadsheet: Place the original data from the NERC Book of Flowgates in the gray shaded region (columns A through AE, beginning with the column headers in row 2.) Add additional rows as needed. Copy […]

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December 3, 2018

GIC Time Varying Electric Field Example

PowerWorld Simulator supports binary and text file formats for time and spatially-varying geomagnetic disturbance (GMD) surface electric field inputs. This format allows development of detailed solar storm scenarios based on historic events or 3D earth conductivity models. Sample (B3D binary format) based on June 22, 2015 event [1], over footprint of the U.S. State of […]

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October 15, 2018

New Feature: Data Check

A new feature was added to PowerWorld Simulator in the April 9, 2018 patch of Simulator 20 called “Data Checks”. Data checks grew out of work that PowerWorld customers Jonathan Young (Columbia Grid) and John Gross (Avista Utilities) performed building on PowerWorld Simulator’s features of Advanced Filters, Calculated Fields, Dynamic Formatting, Expression and String Expressions. […]

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August 3, 2018

Distributed Computing Setup

Distributed Computation Configuration To quickly check the configuration of a given machine, use the Distributed Computation Configuration utility (DistCompCfg.exe in the installation directory of the Simulator version you would like to configure for Distributed use). If a step is not configured correctly, the checkbox will not be marked. All machines involved in a Distributed Computing […]

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September 14, 2017

Play-in time series measurement data with PlayInGen model for Power Plant Model Validation (PPMV)

PlayIn models can be found in the Transient Stability add-on of Simulator. Many dynamic models comprise of differential-algebraic equations that respond to perturbations in a simulation. In contrast, these PlayIn models are used to input time-series data into a transient run at specified time points. In Simulator, a PlayIn Configuration object can be used to store […]

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February 8, 2017

Adding Voltage Compensation to a Generator Model

Generator Voltage Compensation The input signal to Exciter models is a voltage signal (often labeled as either Vc or Ec on a block diagram).  In the simplest form this is just the per unit voltage magnitude of the terminal bus of the generator.  However, sometimes instead of using that voltage signal directly, the voltage is compensated by attempting to control […]

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October 19, 2016

EMP Simulation Example

PowerWorld Simulator version 20 includes the ability to analyze the E3 effects of a high-altitude electromagnetic pulse (HEMP) attack on the power system. Algorithms are based on public Oak Ridge National Laboratory research. To perform a sample analysis: Download this file. Extract the contents and open TX2000.pwb with PowerWorld Simulator (version 20 or higher). Open the […]

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June 24, 2016