Linear energy storage motor

What is a linear electric machine based gravity energy storage system?

The linear electric machine-based gravity energy storage system (LEM-GESS) uses linear machines to vertically move multiple solid masses, or pistons, to store and discharge electrical energy. It consists of a piston, a shaft, a translator, a primary mover and a power converter.

What is a linear motor?

Characteristically, a linear motor's active section has ends, whereas more conventional motors are arranged as a continuous loop. A typical mode of operation is as a Lorentz -type actuator, in which the applied force is linearly proportional to the current and the magnetic field .

What are the operational characteristics of a linear generator system?

The power of thermal electric energy determines the operational characteristics of a linear generator system. The addition of flow control via the linear generator’s PWM rectification enables the achievement of high power factors on the AC side as well as steady output on the DC side ( Jin et al., 2020, Sabry and Ker, 2021 ).

What is a linear machine?

Linear machines are motors that produce a linear force along their length and without rotating or producing torque like conventional motors. They have high force density, which results in a lower footprint and more adaptability in small spaces.

Are linear motors straight?

Synchronous linear motors are straightened versions of permanent magnet rotor motors. A linear motor is an electric motor that has had its stator and rotor "unrolled", thus, instead of producing a torque (rotation), it produces a linear force along its length. However, linear motors are not necessarily straight.

Who invented linear electric motors?

The history of linear electric motors can be traced back at least as far as the 1840s, to the work of Charles Wheatstone at King's College London, [ 5 ] but Wheatstone's model was too inefficient to be practical.