Knowledge Base

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

Applying Updates to Hardware Licenses

To perform the following instructions, you will need a .V2C file provided by PowerWorld. Once you have completed the following instructions, your hardware key will unlock Simulator or Retriever with the updated features. Locate the machine that hosts the hardware key. Simulator or Retriever must be installed on this machine to complete the process. Start […]

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July 23, 2018

Earth Resistivity Model for GIC Calculations

PowerWorld Simulator GIC can automatically incorporate scaling factors for geomagnetic latitude and earth resistivity according to NERC TPL-007-2 – Transmission System Planned Performance for Geomagnetic Disturbance Events (October 2017). The earth resistivity models must be loaded from an auxiliary file. Those described in TPL-007-2, Table 3: Geoelectric Field Scaling Factors, are available here (revised January 31, 2018). […]

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January 31, 2018

Distributed Computing Setup

On both machines Ensure you have the latest Simulator build installed.  It should be the same version on both machines. Use the RegSimAuto utility in the Simulator installation directory to ensure the correct version of Simulator is registered. On the remote machine Set up a user that will be used to run distributed computation.  This […]

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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

Complete Case Auxiliary File Export Format Descriptions

PowerWorld’s Auxiliary File Format is very flexible in providing a mechanism for saving model information from PowerWorld Simulator.  It also provides a great way to share information with others.  This flexibility however has some downsides as puts additional burden on the user to know which things to save.  Many tools within PowerWorld Simulator overcome this by including […]

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May 13, 2016

Using Special Variables with Scripts or SimAuto

Some Simulator functions cause special variables to be created for storing results. The multiple element TLR sensitivity is a common example. Special variables are used to hold the sensitivities of flows on those multiple elements with respect to injections at various points. The number of special variables in use depends on the number of branches […]

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February 1, 2016

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