Application of Capacitive Energy Storage Regenerative Power Absorption Device in Metro System

As an important part of smart grids and systems with a high proportion of renewable energy, energy storage has important strategic significance for building a “clean, low-carbon, safe and efficient” modern energy industry system and promoting the transformation of energy production and utilization. The rational use of subway train braking energy is an important topic in the application of subway industry, and the working principle, control strategy, system protection design and actual energy-saving effect of supercapacitors in the subway system are introduced, so as to facilitate the better development and application of supercapacitors in the subway system and build green, energy-saving and environmentally friendly rail transit.