The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2021
Filed:
Sep. 10, 2015
Forward Electronics Company Limited, Hong Kong, CN;
Eric Ka Wai Cheng, Hong Kong, CN;
Eugene Yu Ching Chan, Hong Kong, CN;
Xiangdang Xue, Hong Kong, CN;
Lok Yan Lorraine Chan, Hong Kong, CN;
Forward Electronics Company Limited, Hong Kong, CN;
Abstract
An elevator automatic rescue and energy-saving control method, the method comprising: when the power grid supplies power normally, selecting a single current in a three-phase power grid () as an AC power supply for an elevator control system (); controlling a DC-DC converter () to charge the super capacitor module () connected to the DC-DC converter to a specified standby electric energy level; and when the power grid is suddenly interrupted, selecting to use the electric energy stored in the super capacitor module () as a rescue electric energy for a traction motor () and the elevator control system (). The described method uses a super capacitor module, so that a stable and reliable elevator rescue power supply is provided when the power grid is suddenly interrupted, and the regenerative electric energy dissipated during elevator braking operation is stored and utilized during elevator operation, thereby conserving energy.