This is the specific application of supercapacitors in urban rail transit.

The specific applications of supercapacitors in urban rail transit include energy recovery systems, fast charging and discharging capabilities, improving energy efficiency, reducing grid burden, enhancing system reliability, supporting contactless power supply, and reducing environmental impact.

Specific cases include Shenzhen Metro and RATP in Paris.

In summary, supercapacitors can effectively improve energy utilization efficiency, reduce operating costs, and have a positive impact on environmental protection in urban rail transit.