ELECTRI POWER CONVERSION APPARATUS AND METHOD IN ENERGY HARVESTING SYSTEM

摘要

PURPOSE: An electric power conversion apparatus in an energy harvesting system and a method thereof are provided to obtain maximum power from a number of energy sources, by adjusting load impedance in a connection structure between source terminals selected by using electric characteristics values of each source or between the source terminal and a gathering terminal. CONSTITUTION: A central control unit (300) calculates serial and parallel combination by using an electric characteristics value of each source terminal connected to a plurality of energy sources as an input parameter. A power synthesis unit (100) measures the electric characteristics value of an individual source terminal among the plurality of source terminals and then transfers the electric characteristics value to the central control unit. The power synthesis unit connects each source terminal in serial or parallel combination according to the calculated serial/parallel combination result, and matches impedance between a load terminal and the source terminal connected in serial or parallel. A voltage conversion unit (200) generates a power source voltage by converting a power signal gathered in the power synthesis unit. [Reference numerals] (10) Electricity converter; (100) Power synthesis unit; (11) Source; (12) Load; (200) Voltage conversion unit; (300) Center control unit; (AA) Electricity #1; (BB) Electricity #2; (CC) Electricity #N; (DD) Load #1; (EE) Load #2; (FF) Load #M