Knowledge Base

Motor Load Starting using Transient Stability

Note: Download a small sample case at the following link which is used in this demonstrate: MotorStart Case Note: Starting in the July 10, 2013 patch of Simulator 17, a modification was made to automatically change the integration time step for the entire simulation when induction motors (loads) or induction machine (generators) drop below 0.1 per […]

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July 2, 2013

Calculating the Net Reactive Capability Curve of a Renewable Energy Plant and Subsystem

When studying a system of small renewable generators that are all hooked up to the power system through one interconnection point, some PowerWorld users have been interested in calculating the net reactive capability curve seen at the utility interconnection point.  As an example consider the power system below which has the following characteristics. Three solar […]

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June 6, 2013

Case Study in Using Auxiliary File Scripting with Advanced Filters, Custom Floats, and Expressions

This is a case study that demonstrates how to automate the process of replicating the net reactive capability curve from a set of renewable generators behind a small distribution system which is connected to a single utility bus.  This serves as a wonderful example for demonstrating several topics. Use of auxiliary files to automate processes […]

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June 6, 2013

How to specify when Transient Limit Monitoring starts monitoring for violations

Transient Limit Monitoring Many power systems require particular voltage or frequency performance during transient stability simulation.  For example, in the Western grid in the United States and Canada, the organization WECC specifies particular performance for various “Category B” or “Category C” contingency events (see http://www.wecc.biz/library/Library/Planning%20Committee%20Handbook/WECC-NERC%20Planning%20Standards.pdf). PowerWorld Simulator’s transient limit monitors allow you to monitor for violations […]

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May 23, 2013

Video Capture

PowerWorld Simulator does not include a built-in tool for video capture or movie making. Commercial and freeware tools are available from other sources to capture video from PowerWorld Simulator, Retriever, and any other desktop applications. Current offerings may be found here, or by simply searching online for video capture software.

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February 21, 2013

Creating Diagrams — Auto-Insert Borders

To insert geographic borders into diagrams, select Insert >> Auto-Insert >> Borders from the main menu. Auto Insert Borders Dialog The PowerWorld border library includes borders for the entire world, as well as Canadian Provinces and state and county borders for the United States. Select multiple borders by holding down the Shift or Ctrl keys while making […]

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July 3, 2012

TransLineCalc Help Files

PowerWorld TransLineCalc Help Files: Save these files into your PowerWorld Simulator directory (C:\Program Files\PowerWorld\TransCalc by default) by right-clicking on the link and selecting “Save Target As …” or “Save Link As …”. TransLineCalc v2 Help TransLineCalc v1 Help

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June 29, 2012

Enabling AGC control of ISO-NE in cases where it spans multiple islands

Auxiliary File: HighgateIsland.aux (Right-click on the above file and select Save Target As to save it to your computer.) In some Eastern Interconnect planning models, the ISO-NE area spans multiple islands that contain multiple areas. Some of its buses, loads, and generators are connected to the rest of the area through the Highgate AC-DC-AC link […]

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June 29, 2012