What's new in PSS®E 35.0

Create custom fields using the extensible raw and sav formats

Import, store, and export any custom data by adding custom data columns to the data tables. This also provides flexibility for the Siemens team to introduce new data formats without having to release a major software version. Customer ideas: PSSE-I-445, 295, 450, 452, 560, 564.

Model multiple Switched Shunts at the same bus

No longer do you need to consolidate switch shunts to a single element. Achieve more realistic models with multiple switch shunts per bus with the ability to control and adjust shunts independently in power flow. Customer ideas: PSSE-I-562.

Generator reactive capability curve data (GCAP) stored with Machine Data

Efficiently compare this data side-by-side. The QMin/QMax automatically updates when PGen is changed. Customer ideas: PSSE-I-59, 458, 461.

Enhanced N-1-1 Spreadsheet Reporting with export capabilities

Leverage the new built-in tabularized spreadsheet reports for your N-1-1 analysis. This will enable you to easily process, sort and filter data directly in PSS®E as opposed to the traditional text reports. Additionally, you can export the results directly to csv or Excel for further post processing. Customer idea: PSSE-I-197.

PSS®MUST as an add-on module

Directly invoke the MUST functionality from the PSS®E GUI and make use of the network case in PSS®E memory. Ability to develop and run a single script that uses both the PSS®E modules (such as psspy and pssarrays) as well as the MUST module (mustpy).

Enhance performance with x64 bit

PSS®E 35.0 will only support x64 bit, and x32 bit installers will no longer be supplied.

New licensing system mandatory starting with PSS®E v35

Beginning with v35.0, PSS®E will be using CodeMeter as its exclusive locking mechanism. Through v34, PSS®E supported both the old SafeNet SuperPro dongles and the new CodeMeter options to allow an orderly migration. CodeMeter enables you to leverage more flexible licensing options by offering not only a hardened dongle but also software locking and network checkout options (additional fees apply to some options). See the announcement on Freshdesk or contact support to learn more if you haven’t migrated yet.

What's new in PSS®E 34.6

First step taken in Contingency Revamp: Support for the Vendor Neutral Remedial Action Scheme Format

The Vendor Neutral RAS module is created to support the new and evolving Contingency and Remedial Action Scheme standard adopted in the Western United States. This standard defines a way to identify contingencies, Remedial Action Schemes (RASs) and their triggering conditions in a vendor neutral manner.

Solve even more difficult cases with the updated Robust Solution option

Including a simplified interface and the introduction of an API (RSOL). Note: algorithm changes required the temporary removal of the "Save best found solution steps in Python script" functionality.

Use load threshold models per NERC requirements based on three new values

Including (1) load MW threshold (2) Load P by Q (absolute value of P over Q) threshold, (3) Load bus voltage threshold.

Include more dynamic models for stability analysis, at the 200,000 bus size

This means (1) wind machines increased to 20,000 (2) CCT models increased to 150,000, and (3) line relay model connections (MXRLCX) increased to 40,000.

Additional notable enhancements:

• Perform TPL-007 Supplemental Event Calculations with Moving boxes using the latest GIC module.
• Utilize the new ability to identify intra-substation loop flows in substation diagrams.
• Leverage enhanced auto substation diagram layouts with better branch routing.
• Import PSLF version 19 EPC files

What's new in PSS®E 34.5

New dynamic model debug option

Quickly determine which model is causing the program to crash during dynamic initialization and runs. With this option, the name of each model called at every time step with identifying information will be directed to a report window – this output can be redirected to a file.

Node-Breaker improvements including:

• Automatic bus deletion from substation when all associated nodes are deleted
• Increased precision of substation flows
• Non-interrupting imbalance messaging when detected during contingency analysis
• Ability to monitor flows in a substation

Several dynamic models to take advantage of including:

• IEEE 42104 – AC10CU1, ST10CU1, PSS6CU1, UEL2CU1
• WECC approved – HYG3U1, GP Governor, G2 Governor plus Turbine model
• Vendor models - Vestas full converter wind turbine and IEC 61400-27 power plant controller, and AMSC D-VAR model

Updates to diagrams including:

• GNEs are now supported in One-line, and GOUT diagrams
• N-term DC lines are supported in One-line, GOUT and Substation diagrams
• Option to set the minimum and maximum flow arrow sizes on diagrams

Additional features:

• Automatic Bus Type Management when adding generators to non-generating buses
• Data checking warning for different kV buses tied together by non-transformer branch
• Non-modal dialogs for SCMU/SCOP
• Ability to delete a selection of elements from Slider all at once

What's new in PSS®E 34.4

Access more IEEE 421.5 models

Use these additional IEEE models for stability studies:  ST4C, ST8C, AC9C, ST9C and AC8C.

Display voltage violation check data in the DVRM

Specify different voltage violation thresholds and change it on the fly. Also avoid using text based reports by viewing the bus voltages which failed the violation criteria in a visual plot. 

Utilize many enhancements to the GIC module:

• GIC Module updated to NERC TPL-007-2 standard alpha and beta factors, GIC(t) profile of Benchmark Event and Supplemental Events
• Added functions to ‘gicdata’ Python module to facilitate build and use of one GIC data file for number of grid operation scenarios
• Automatic GMD storm orientation and strength scan including power flow solution
• Updated GIC calculation Text/Excel Reports to include Switched Shunts, DC System Shunts and Load Shunts GICs
• PSSARRAYS exports Switched Shunts, DC System Shunts and Load Shunts GICs

Support split substations with the Regulated Node added to RAW file

Use this Node-Breaker enhancement for remote bus regulation with bus-sections.

View bus sections displayed on one-line diagrams

See the entire network topology including switching details of the substation on the one-line.

What's new in PSS®E 34.3

• Access the LineProp functionality directly from the PSS®E GUI
• Export plots directly to Excel from the PSS®E GUI – this functionality can also be scripted
• Updates to Node-Breaker modeling to add support for network components in substations, i.e. induction machines, two terminal DC lines, two terminal VSC lines, FACTS devices, and multi-thermal DC lines
• Create X-Y Plots directly from the Plotting package
• Help solve difficult cases using the new “Robust Solution” tab added to Loadflow Solutions
• GIC functionality and Standard PSS®E models are now delivered as separate components in the installation. This will allow us to issue updates for these components in a more flexible manner
• Hourly licensing for Wibu CodeMeter is now supported
• *Updated activity of IECS to IEC 60909-0, 2016-01 Edition 2.0 standard requirements including:
• Fault current contributions from Wind Power station units with asynchronous generator, Wind Power station units with double fed asynchronous generator, and Power station units with full-size converter 
• *IEEE 421.5 dynamic model additions, i.e AC7C, DC4C, ST6C
• *Updated uniform messaging has been applied to all standard PSS®E dynamic models – messages may be retrieved using APIs or sent directly to Excel for post-processing

*also available in v33.11

 PSS®E What's New v34