Standard test systems known as benchmark power systems are widely used by researchers to test any new algorithms and also by academia for educational purposes. This paper focuses on developing real-time simulation models of benchmark power systems such as the two-area power system, IEEE 9 bus power system, 12 bus power system, IEEE 14 bus power system, and IEEE 39 bus power system and validating them against transient stability models. Although the above test systems were introduced in order to perform specific types of power system studies, all benchmark cases are now commonly used for studying loadflow, voltage stability, rotor angle stability, renewable integration, FACTS applications, HVDC transmissions, synchro-phasor applications, dynamic security assessments, and data communications within power system. Therefore, it is beneficial for the users to have real-time simulation models of standard test systems as real-time simulators are now widely used in power industries and universities.
A brief discussion on time-domain simulation of power systems is provided targeting the time-step used for discretization and reliable frequency range in electromagnetic transient (EMT) and transient stability assessment (TSA) tools. In addition, modelling details considered in EMT and TSA tools to model power system and control components are also discussed. The RTDS® simulator was used as the platform for real-time simulation and the PSS®E simulation tool was used to develop the transient stability models. Loadflow and dynamic data of benchmark power system obtained from reliable sources were used to create the PSS/E files. The data conversion program in RTDS was used to develop the real-time simulation models. In the validation process, initially the loadflow results from RTDS ware compared against those from PSS/E. Then, dynamic simulation results obtained using both simulation tools were compared for different disturbances such as a line trip and a bus fault to show that a close match of results can be achieved.
S. ARUNPRASANTH, H. MEIKLEJOHN, and R. WIERCKX, In Proc. Cigre Session 2018, Paris, France, August 2018
KEYWORDS: Benchmark power system, electromagnetic transient, PSS/E, RTDS, transient stability