Test Models for Stability/Security Studies of AC-DC Hybrid Power Systems with High Penetration of Renewables

Modern bulk power systems are developing into AC-DC hybrid systems with high penetration of renewables. There has been a lack of representative benchmarks to study stability and security problems of modern power systems. This paper presents an attempt to provide a set of four test models, addressing problems of voltage stability, rotor angle stability, frequency stability, and power frequency overvoltage under large disturbance. On the four stability/security problems, the models consider both their conventional features and distinct features induced by renewables. All the data of the models are extracted from real power systems, with modifications to establish a near-future scenario with over 50% renewable penetration. The test models are proposed by China Electric Power Research Institute, and acknowledged by Chinese Society for Electrical Engineering (CSEE). They are expected to serve educators, researchers and practitioners in related areas.