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Do electric motors come with an energy saving potential?

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However, considerable potential remains unused. At around 70%, the majority of industrial consumption is accounted for by electric drives and motors that move industrial robots, servo presses, CNC systems, storage and retrieval machines, elevators, or cranes, among other things. Most of these machines and systems can be recuperated, enabling the kinetic energy to be converted into electrical energy during braking.

Since the motors in these applications constantly alternate between braking and acceleration, the energy storage devices must have a high short-term performance capacity. Braking energy, therefore, can only be used or recuperated by extremely cycle-resistant and powerful energy storage systems.

Flywheel Energy Storage Systems (FESS), also known from Formula 1 as KERS, have the right properties for these applications. The technology is based on electromechanical short-term storage systems that operate according to the law of conservation of angular momentum and store energy in rotating masses.

They consist of an integrated high-speed electric motor that is operated both by motor and generator. Through rotation, electricity is kinetically stored, which is why flywheel mass storage devices are also known as kinetic batteries. The accumulator can supply the electrical energy for the connected consumer, usually drive motors. In doing so, it enables high power output for short periods within milliseconds, thereby, full power is typically provided for about 30 seconds. Higher and more frequent load cycles are, the system is more efficient.

Source:- Electric motors

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