| 摘要 |
PROBLEM TO BE SOLVED: To prevent a noise problem and the like without the need of fitting a protection device, by associatively connecting a commercial AC system and a power system from an arbitrary power generation means, in a part where at least a commercial AC-side is converted to a waveform of pulsating current. SOLUTION: Power received from a commercial AC power source 1 is converted into pulsating power in a rectifying means 3. Pulsating power from a solar battery 11 is generated independent of the commercial AC power source 1 in synchronizing with a pulsating period from the rectifying means 3. Pulsating power generated from the power generation means is connected so that it is superimposed with pulsating power from the rectifying means 3. An AC generation means 7 which converts again pulsating power from the connection point of the rectifying means 3 and the pulsating current addition means 5 into AC power again and feeds power to a load 13 is provided. Counterflow preventing diodes 3d and 5d are provided on the output side of the rectifying means 3 and the pulsating current addition means 5 for preventing the inflow of current from the other sides. |
