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 […]
December 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 […]
Tags: FAQ,Retriever,Simulator,Tip,Tutorial
July 23, 2018
Transient stability voltage collapse: See it with large plots and Min/Max result tracking
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
GIC and Substation Coordinates for Line Taps
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 […]
March 26, 2015
Assigning Costs to Control Adjustments in OPF
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 […]
March 2, 2015
How to specify different Voltage Deviation Limits for different buses in Contingency Analysis
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
WECC Post Contingency Voltage Drop Criteria Monitoring
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 […]
August 27, 2013
Initial wiggles in a very small transient stability case
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
Remote License Troubleshooting
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
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 […]
Tags: How-to,Product,Simulator,Tip,Tutorial
June 6, 2013