A Study on AC-DC Grid Operation Strategies to Enhance Power System Efficiency

With the increasing integration of renewable energy sources and the growing demand for electricity, Jiangsu power grid is evolving towards a more complex structure, and the province's north-to-south transmission section will become the focus area. By leveraging existing river corridors, a hybrid AC-DC transmission system can be implemented to substantially enhance the province's power transmission capacity. Through a comprehensive analysis of the power flow characteristics, considering the unique features of new energy-loads, a DC operation strategy is proposed. This strategy is designed to enhance the efficiency of energy transmission, ensuring a more reliable and sustainable power system.