The transformation of the energy supply and demand pattern profoundly changes the form and structure of the power system, and the characteristics of ‘high proportion of renewable energy’ and ‘high proportion of power electronic equipment’ in the power system are becoming increasingly prominent, bringing new challenges to the security and stable operation. The operating characteristics of the system are mainly influenced by the control of power electronic equipment, significant changes have occurred in the stability mechanism, operating characteristics, and control methods. Renewable power sources, high-voltage direct-current transmission stations, and other power electronics equipment make it more difficult to acquire proper modelling and efficient methods for stability analysis. Power systems worldwide frequently encountered stability problems introduced by renewable power generators that have not encountered nor noticed before. Quantitatively estimating and enlarging the stability region of the power system is becoming a key challenge in the planning, operation, and control, which is of great significance for accelerating the low-carbon and clean transformation of the national energy system. Therefore, it is timely demanded for stability analysis and control of hybrid AC/DC power systems with high penetration of renewable energy. In this special session, the major objective is to share novel research results and interesting ideas in fields of security and stability analysis, active support control, and fault ride-through strategy for hybrid AC/DC power systems with high penetration of renewable energy.

Topics of interest include, but are not limited to:

（1）Modeling and Simulation of hybrid AC/DC power systems with high penetration of renewable energy

（2) Analysis method for security and stability of hybrid AC/DC power systems with high penetration of renewable energy

（3）Active support control method for renewable energy power generation and HVDC transmission

（4）Fault characteristic analysis and ride through control of hybrid AC/DC power systems with high penetration of renewable energy

（5）Interaction between converter control modes and power system transient stability