US2020102183A1PendingUtilityA1
Regenerative electrical power supply for elevators
Est. expiryNov 18, 2035(~9.3 yrs left)· nominal 20-yr term from priority
B66B 1/302B66B 1/308Y02B50/142Y02B50/00
56
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Claims
Abstract
An energy storage system is provided including: an elevator; an elevator motor; a power system coupled to the elevator motor. The power system including at least one capacitor operable to store energy received form the elevator motor and to supply stored energy to the elevator motor; and at least one flywheel operable to store energy received from the elevator motor and to supply stored energy to the elevator motor.
Claims
exact text as granted — not AI-modified1 . An energy storage system including: an elevator; an elevator motor; a power system coupled to the elevator motor; and the power system including: at least one capacitor operable to store energy received from the elevator motor and to supply stored energy to the elevator motor; at least one flywheel operable to store energy received from the elevator motor and to supply stored energy to the elevator motor, the at least one flywheel electrically coupled to a DC bus, the DC bus operable to receive a voltage generated by the elevator motor; and a flywheel motor controller that monitors the DC bus voltage and an AC line voltage.
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