Energy storage device hoisting method

Can gravity energy storage improve the performance of a hoisting system?

This paper investigates an innovative energy storage concept which combines gravity energy storage (GES) with a hoisting device based on a wire rope with an aim to enhance the system performance. A sizing method was performed to determine the proper sizing of the hoisting system's components, mainly the wire rope and the drum.

Can a wire rope hoisting device improve the performance of gravity energy storage system?

This paper has investigated the idea of improving the performance of gravity energy storage system by the addition of a wire rope hoisting device to support the lifting of the piston. First of all, the appropriate size of the hoisting system's components was first determined. The type of the rope and the required safety factor were identified.

What is a hoisting system?

Hoisting system: The key system for converting electrical grid power into gravitational potential energy, by doing reversible work against gravity by lifting weights. Optimizing the design of this system is key to maximizing the performance of the system and keeping costs competitive.

How does an additional hoisting system work?

The additional hoisting system is composed of a wire rope and a drum connected to a motor/generator. To store energy, both the pump-motor and the drum motor use excess electricity to make the piston move in an upward motion.

Are there different dry gravity storage methods based on hoisting methods?

In the same context, two different dry gravity storage based on hoisting methods was also proposed by Botha et al., namely the traditional drum winder hoist, and the ropeless hoisting method. This latter relays on the concept of a linear electric machine as hoist .

What is a gravity energy storage device?

In simple terms a gravity energy storage device uses an electric lifting system to raise one or more weights a vertical distance thereby transferring electrical energy to be stored as gravitational potential energy.