See Also
Simulator offers many tools to study the capabilities of a power system. Examples include:
- Contingency Analysis
- Available Transfer Capability (ATC)
- Optimal Power Flow (OPF)
- Security Constrained OPF (SCOPF) Overview
- PV Curve and QV Curve Tool
All of these tools make extensive use of power system limits. Limits for various power system elements include:
- MVA (or Amp) limits on transmission lines and transformers
- MW limits on Interfaces
- Angle limits on Bus Pairs Added in Version 20
- High and low voltage limits for Buses
The accuracy of all these limits is very important, as is the specification of which limits should be monitored. While ensuring the accuracy of input data such as power system limits must be left to the user, PowerWorld Simulator provides several ways to specify which limits should be monitored. Limit Monitoring is specified according to settings for the Area, Zone and Limit Group to which the power system element belongs. A power system element is monitored only if ALL of the following conditions are met.
Conditions for Monitoring an Element’s Limit
- Its Monitor field is set to YES
- Its Limit Group is Enabled
- Its Area is set to Report Limits and it meets the KV range for reporting
- Its Zone is set to Report Limits and it meets the KV range for reporting
The Limit Monitoring Settings Dialog gives you ability to specify all these settings to setup the limits you want to monitor, and thus enforce in the various tools that Simulator provides.