Knowledge Base

A common question that PowerWorld support staff receives is as follows. Question: Can I apply multiple faults in a transient stability simulation simultaneously? Answer: Yes, absolutely! We agree that normally this would not happen in real life situations, however there are studies that power engineers do that may require this. Our customers in North American […]

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

January 8, 2021

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 […]

Tags: How-to,Simulator,Tip

December 3, 2018

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 […]

Tags: FAQ,Retriever,Simulator,Tip,Tutorial

July 23, 2018

We had a rather strange support question from a customer running a transient stability run with a three-phase fault that was on for 2 seconds on a 230 kV bus (they were studying delayed clearing of a fault with about a dozen switching actions occurring which eventually cleared the fault after 2 seconds).  The network boundary […]

Tags: FAQ,Simulator,Tip,Transient Stability

April 3, 2015

To properly perform geomagnetic induced current (GIC) analysis, substation geographic coordinates (longitude, latitude) must be provided for all substations that contain terminals of transmission lines for which a GIC-induced equivalent DC voltage is applied. Generally this includes all lines greater than the minimum length and minimum voltage specified on the GIC Analysis Form. The need for coordinates […]

Tags: GIC,Simulator,Tip

March 26, 2015

Download the example files. Simulator’s Optimal Power Flow (OPF) has 2 options for objective functions: Minimum Cost or Minimum Control Change. Generally Minimum Cost is used where generator bids or costs and load benefits are known. Minimum Control Change is used where it is desirable to relieve transmission overloads with minimum deviation from the present […]

Tags: How-to,OPF,Tip

March 2, 2015

PowerWorld Simulator allows you to monitor for violations based on the change in a value relative to the reference state (base case).  This was already covered in the knowledge base article at WECC Post Contingency Voltage Drop Criteria Monitoring.  This works well if you have the same percentage drop violation for all buses in your system. […]

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

January 2, 2015

  Note, this knowledge base article provides a very simple feature for monitoring for voltage deviation monitoring, however if you need more flexibility than is shown below, there are two other knowledge base articles related to this one which provide much more flexibility than is shown below.  Links to these knowledge base articles are as follows. How […]

Tags: How-to,Simulator,Tip

August 27, 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