Invention Grant
- Patent Title: Power supply for elevator systems having variable speed drives
- Patent Title (中): 具有变速驱动器的电梯系统的电源
-
Application No.: US10769527Application Date: 2004-01-30
-
Publication No.: US07246686B2Publication Date: 2007-07-24
- Inventor: Rory Smith , Hien T. Nguyen
- Applicant: Rory Smith , Hien T. Nguyen
- Applicant Address: US CA Whittier
- Assignee: Thyssen Elevator Capital Corp.
- Current Assignee: Thyssen Elevator Capital Corp.
- Current Assignee Address: US CA Whittier
- Agency: Frost Brown Todd LLC
- Main IPC: B66B1/06
- IPC: B66B1/06
Abstract:
An improved system of variable speed drives that enhances the energy efficiency of an elevator system by enabling power transfer between the variable speed drives of two or more elevators via a common DC bus. Any combination of regenerative and non-regenerative variable speed drives may be used with the present invention. Energy storage devices may be connected to the common DC bus further improve efficiency.
Public/Granted literature
- US20050224296A1 Energy efficient variable speed drive for elevator systems Public/Granted day:2005-10-13
Information query
