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New in Simulator Version 9.0
Are there any other features you would like us to
be thinking about for our next version? Please let us know via email at
info@powerworld.com.
Or give us a call at (217) 384-6330. We enjoy receiving input from our customers
The following is a list of many of the most
noticeable changes to Simulator for Version 9.0.
- New Security-Constrained Optimal
Power Flow (SCOPF) add-on tool has been developed which expands on the
existing Optimal Power Flow (OPF) add-on. This allows you to define
possible contingency scenarios which are used during the optimization
routines to ensure that system flows during the contingency scenarios are
maintained within limits. This facilitates the complete modeling of new
LMP or spot-pricing based markets.
- New Simulator Automation Server (SimAuto)
add-on has been created. The SimAuto add-on allows the access of the
Simulator calculation engine from another programming language. This
allows users to write their own programs, either macros or full-fledged
stand alone applications, which can have the ability to link to Simulator’s
analysis engine.
- New script file language that
allows you to automate commonly performed tasks
- Added DC power flow mode for use
in Simulator’s OPF, SCOPF, and normal power flow.
- Added support for Simulator’s
own text power flow format based on Simulator’s self-defining auxiliary
file format.
Along with enhanced abilities and
tools, Version 9.0 continues PowerWorld Corporation’s singular dedication to
creating powerful analysis software that is easy to use. We’ve included
several new features that make navigating and interpreting the results of your
analysis easy. Simulator’s innovative one-line diagrams continue to provide
you with insight into your analysis results in seconds. We’ve added a number
of features that will make the creation of these diagrams easier.
- Bus view diagrams have been
enhanced
- Generator, Load, and Shunt Fields
can now be anchored to their symbol instead of their terminal bus
- Users can now create new objects
by pasting data into Case Information Displays from spreadsheets.
- Oneline diagrams can now
optionally be linked using bus name and nominal voltage instead of bus
number.
- Major enhancements of the case
comparison tool allow you to view case information displays showing you
all elements which have been removed or added to your new case.
- Case information display data can
now be contoured.
- Facility Analysis routine has
been added to study the topological redundancy of specific electric
facilities.
Power Flow Modeling enhancements of
Simulator’s engineering analysis algorithms continues to improve as well.
- Added decoupled power flow
solution technique and a polar-form Newton-Raphson technique.
- Added a robust power flow
solution method, which can often be successful in producing a flat-start
power flow solution.
- Improved Power Flow Convergence
Techniques
- Improved models for
multi-terminal DC lines.
- Allow multiple switched shunts at
each power flow bus
- New switched shunt control mode
which regulates a set of generator MVAR outputs
- Added more features to
transmission line branch modeling
- Allow generators, loads, and
switched shunts to belong to a different area or zone that their terminal
bus.
Contingency Analysis Tool
Improvements
- Added “post-contingency”
actions which are set for execution based on the post-contingency state.
These can effectively model actions such as thermal relays.
- Added Contingency Blocks for
defining a list of commonly occurring contingency actions. These blocks
can then be called from a contingency record directly allow you to avoid
needless repetition of a common list.
- Added Global Actions which are
applied to all contingency records (especially good for post-contingency
actions).
- Added injection group contingency
actions which are applied to all loads or generators in the injection
group.
- Added interface actions which can
open or close all branches in the interface.
- Added new generator voltage
control routines called Line Drop Compensation (LDC) and Reactive Current
Compensation (RCC). These help to model shorter-term voltage control such
as in a post-contingency solution
- Added ability to report
contingency violations based on the change in limiting value from the base
case. Using this, for example, you could report bus voltages which fall by
more than 0.05 per unit or suppress reporting of line flows which increase
by less than 2.0%.
- Added more make-up power options
during contingency analysis to more accurately model generator response.
- Improved contingency analysis
export capabilities making custom exporting possible.
Available Transfer Capability
Improvements
- Improved convergence for iterated
solution techniques
- Modified the Full AC ATC solution
method to only process the worst contingencies found during the iterated
technique. This allows the full AC method to be faster and more useful.
- Added the flagging of divergent
power flow solutions when ramping out using the iterated solution
techniques.
Optimal Power Flow Improvements
- Added the ability to dispatch
system loads inside the optimal power flow routines. This requires
economic response information for loads in the system.
- Improved algorithms to help
ensure algorithm convergence.
PV and QV Curve Tools Completely
Revamped
- The PV and QV curve tools in
Simulator have been completely redone for Version 9.0
- The same ease of setup is
maintained, but improved solution algorithms have been applied.
- Improved plotting options and
easier plot customization.
For a list of what was new in previous version of Simulator, see the links
below.
What's New in Simulator 8.0
What's New in Simulator 7.0
What's New in Simulator 6.0
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