Electric bicycle battery centralized charging and replacing system with bidirectional energy flowing function

Abstract

The invention discloses an electric bicycle battery centralized charging and replacing system with an energy bidirectional flow function. The system comprises an electric energy conversion system anda monitoring system; the electric energy conversion system comprises an AC / DC converter with bidirectional energy flow and a plurality of DC / DC converters with bidirectional energy flow; the AC / DC converter is connected with the plurality of DC / DC converters through a direct current bus; each DC / DC converter is connected with a battery; the monitoring system comprises a cloud server, a main controller, an AC / DC distributed controller, a DC / DC distributed controller and a battery BMS system; the main controller communicates with the cloud server through a wireless network or a wired network, uploads operation status and operation parameters of the battery charging and replacing system, and receives an instruction sent by the cloud server; the main controller communicates with the AC / DC distributed controller and the DC / DC distributed controller, issues instructions on operation modes and an operation parameters, and receives operation status, operation parameters and event reports of the AC / DC converter and the DC / DC converters. According to the system, multiple functions of a battery charging and replacing cabinet can be achieved, different functions are switched, and different application needs are met.

Description

technical field [0001] The invention relates to the field of electric bicycle battery charging and replacing, in particular to the electric energy conversion framework and control method of a centralized charging and replacing device, in particular to an electric bicycle battery centralized charging and replacing system with the function of energy bidirectional flow. Background technique [0002] With the implementation of the new national standard, more and more electric bicycles use lithium batteries with light weight, long cruising range and long service life as power batteries. At the same time, the safety of the charging process of the lithium battery itself has received more and more attention. The centralized charging and swapping method that adopts the separation of vehicle and electricity has the characteristics of centralized management, safe charging, and high-efficiency battery swapping. At present, the common centralized charging and swapping devices meet the re...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an electric bicycle battery centralized charging and swapping system with the function of bidirectional energy flow, so as to solve the problem that the energy of the current electric bicycle centralized charging and swapping cabinet can only flow in one direction, which cannot be used as a community energy storage emergency power supply and power grid peak regulation Questions about FM and more

Images