Power System Dynamic Performance Committee IEEE

Voltage Stability Analysis and Security Assessment

Test Systems for Voltage Stability Analysis and Security Assessment

This web page contains information about the work of the IEEE PES Task Force on Test Systems for Voltage Stability Analysis and Security Assessment. Full data and samples of representative outputs for two test systems models (respectively the Nordic and the RVS test system) can be found in this page. The sampled outputs refer to long-term dynamic simulations of their responses to large disturbances.

The first system, with 50 Hz nominal frequency, is a variant of the former so-called Nordic32 test system. Dynamic models and parameters were adjusted to make them more representative. This system has rather long transmission lines of 400-kV nominal voltage. Frequency is controlled by generators of hydro plants located in the exporting areas. The overall characteristics are: 74 buses, 102 branches, 20 generators (all with step-up transformers and overexcitation limiters modeled), 22 loads at distribution level (all controlled by load tap changers). This system has been used in various studies including contingency evaluation, voltage security assessment, instability detection and emergency control.

The second system, with 60 Hz nominal frequency, corresponds to a large extent to the 1979 IEEE Reliability Test System, more precisely the so-called “one area RTS-96” system. The corresponding original models and data were used in a number of publications. This web page presents a variant of the above test system, in which the parameters were adjusted to make voltage instability more pronounced. Its overall characteristics are: 75 buses, 145 branches, 32 generators, 17 loads at distribution level, and two switched shunt capacitors.

Brief description of the main feature of each benchmark system:

System
Nordic Test System
RVS Test System

Report of the IEEE PES Task Force on Test Systems for Voltage Stability Analysis and Security Assessment

This web site was produced as part of the work carried out by the IEEE PES Task Force on Test Systems for Voltage Stability Analysis and Security Assessment. The material contained in it was developed by the contributors to this Task Force, subject only to an internal peer-reviewing process. The authors are not committed to provide any support to potential users (although they can be contacted and do so on a voluntary basis).

The interested user and/or reader can find a consistent documentation of the test systems in the Technical Report of the mentioned Task Force, which is available for download at the PES Resource Center. The download is free for PES members, but charges apply for non-members (even those who are IEEE members).

The link for downloading this Technical Report (PES-TR19 Test Systems for Voltage Stability Analysis and Security Assessment (2015) – PDF) is given below:

http://resourcecenter.ieee-pes.org/pes/product/technical-reports/PESTR18