Energy management system for energy-self-sufficient system i.e. micro-system, in industrial automation, has controllable charge transfer circuit utilized for transmitting electricity from storage element to output buffer capacitor

摘要

The system has an energy management unit (2) including a storage element for storing electricity produced by a solar cell (1). An input buffer capacitor (Cin) is switched at input side parallel to the storage element. An output buffer capacitor (Cout) is switched at output side parallel to the storage element. A controllable charge transfer circuit (40) transmits the electricity from the input buffer capacitor to the storage element. Another controllable charge transfer circuit (41) transmits the electricity from the storage element to the output buffer capacitor. An independent claim is also included for a method for operating an energy management system.