Core technical advantages: First, efficient recovery of regenerative electric energy, adopting bidirectional active inverter technology, efficiently recovering the regenerative electric energy generated during the downward braking and light load upward of the elevator, with a power conversion efficiency of more than 96%, completely solving the problem of electric energy waste caused by traditional resistance energy consumption braking; Second, intelligent energy storage peak-valley optimization, built-in lithium iron phosphate energy storage system, charging during low-valley electricity price periods, discharging during peak electricity price periods, combined with regenerative electric energy recovery, to maximize the reduction of elevator electricity costs, and can participate in grid demand-side response to obtain additional benefits; Third, power quality optimization, the system has active filtering and reactive power compensation functions, which can eliminate harmonics generated by elevator operation, improve the power factor of the power grid, avoid interference to surrounding electrical equipment, and comply with the national power grid power quality standards; Fourth, integrated emergency power supply, the system integrates the power failure emergency leveling function. After the power grid fails, it can automatically switch to the energy storage power supply mode to ensure that the elevator automatically levels and opens the door to avoid elevator entrapment, without additional emergency power supply; Fifth, convenient installation and strong adaptability, adopting modular design, no need to modify the original elevator control system, adaptable to all brands and models of AC variable frequency elevators, the installation cycle is no more than 4 hours, can real-time monitor the electric energy recovery data and power saving data, and generate energy consumption analysis reports.