Primary Analysis on Effect of Rectifier Feedback Cell in Port Crane Energy Saving Reform

The following process is described which the tectifier feedback cell made with IGBT power elements in China can be used to convert the declining potential energy of port crane load to three-phase alternate current,then feeds it back to power supply system.The factor of crane power system may approach to 1.0 by this technology.Its outstanding energy-saving effect is verified in one project example.The technology will provide the reference for power supply system renovation in original port area,power supply engineering design and equipment type selection in new port area.