Knowledge Base

Download the example files. These examples show how Simulator’s Optimal Power Flow (OPF) may be used with dispatchable loads to relive transmission overloading. First, the OPF may be used with the minimum control change objective function. Here, the “cost” of changing a control (generator or load output) is the same for each MW of change […]

Tags: How-to,OPF,Tutorial

January 5, 2015

This tutorial features a fictitious power system the size of a medium-sized city. The simulations explore several facets of power system planning and operations, including: addition or removal of transmission facilities addition, de-rating, or removal of generating resources demand response and use of customer-owned generation, such as rooftop solar physical or cyber attack on a […]

Tags: Presentation,Simulator,Tutorial

December 3, 2014

This article covers how to model a wind or solar plant using the second generation wind turbine models that have been developed through WECC’s Model Validation Working Group (MVWG).  The details of these models are explained in detail in PDF documents on the WECC website at the following link:  WECC MVWG Approved Model Specifications You […]

Tags: Presentation,Product,Simulator,Transient Stability,Tutorial,Type

June 11, 2014

Distributed Flexible AC Transmission System (D-FACTS) devices or “smart wires” change the effective line impedance of the transmission line on which they are installed.  The Knowledge Base Article is a quick-start tutorial that introduces D-FACTS devices and how to use them in PowerWorld Simulator.  This is a short hands-on training session with slides and sample cases. […]

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

January 15, 2014

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 […]

Tags: How-to,Simulator,Transient Stability,Tutorial

July 2, 2013

A common question when a user first starts playing with very small transient stability test cases is “Why do I see wiggles in my plots with no disturbance?”  On large transient stability simulations there can be many different reasons for this, but for a 9 bus, 1 generator case you would rightly not expect to […]

Tags: FAQ,Simulator,Tip,Transient Stability,Tutorial

June 12, 2013

If you are trying to start Simulator or Retriever using a remote license but the hardware key is not detected, you may need to manually point to the hardware key’s location on the network. To configure where your machine goes to look for remote license keys, make sure to run the full Simulator or Retriever installation […]

Tags: FAQ,Retriever,Simulator,Tip,Tutorial

June 10, 2013

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 […]

Tags: How-to,Product,Simulator,Tip,Tutorial

June 6, 2013

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 […]

Tags: How-to,Script,Simulator,Tip,Tutorial

June 6, 2013

A PDF White Paper on RAS Model can be found at this link: RAS_Modeling_PowerWorld Sample PowerWorld Cases and Auxiliary Files that demonstrate the RAS Modeling described in the White Paper can be found in the ZIP file at this Link. PowerWorld is often asked  questions about how to model automated and conditional actions that occur […]

Tags: How-to,Product,Simulator,Technical Papers,Tutorial,Type

May 10, 2013