Patent ID: 7433212

Claim:
A system linking apparatus for generated electric power, for connecting an electric power system onto an output of a power generator through a linking inverter, comprising: a magnetic energy regenerating circuit having a capacitor for condensing magnetic energy condensed in the power generator; a rectifying circuit being connected with the magnetic energy regenerating circuit and for dc converting the electric power generated by the power generator and outputting the converted current onto the linking inverter; and a capacitor being connected with the rectifying circuit and for keeping the dc output for the linking inverter at a predetermined voltage, wherein: the magnetic energy regenerating circuit includes bridge circuits each of which is composed of four reverse-conducting switches, the bridge circuits corresponding with outputs of respective phases of the power generator, and the magnetic energy condensing capacitor being connected between dc terminals of each of the bridge circuits; when current to the rectifying circuit is cut off, the magnetic energy regenerating circuit causes magnetic energy condensed in leakage inductance of the power generator to be condensed in the magnetic energy condensing capacitor, and when a next switching operation is performed on the bridge circuits, the magnetic energy regenerating circuit causes the energy condensed in the magnetic energy condensing capacitor to be discharged into the capacitor that keeps the dc output at the predetermined voltage.