Abstract
Recently, the buildings are built to large scale and multilayer. A lot of buildings of over 400m in height are constructed in foreign countries. The transportation capacity improvement of the elevator is necessary according to building to large scale and multilayer. To reduce the number of the installation of the elevator, it is demanded to be able to transport the large number of people. We developed large capacity and high-speed elevators, and delivered them to Shanghai World Financial Center. It reports on the technology of driving system that supports large capacity and high-speed elevators.
