Elevator energy storage device

Abstract

The present invention relates to an elevator energy storage device designed for the storage and feedback of electrical energy, as well as for grid load regulation within a system connected to said device. The system is connected to a power supply system, wherein the lifting storage mechanism comprises multiple lifting modules. Each lifting module is equipped with a ground-side double-cable winch, a lifting counterweight suspended by two winch cables, and cable guiding devices for directing the winch cables and the lifting weight. Furthermore, the system includes electronic units for the control and monitoring of each lifting module. Power conversion and on-demand control of individual lifting modules are achieved through a central control and command unit. This modularly designed lifting storage system enables highly efficient and flexible energy buffering, making it particularly suitable for integration into distributed energy supply systems.

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