PURPOSE: To reduce the cost by connecting a load between a DC/AC converting means and a linking means and connecting lead-in wires for respective consumers between them.
CONSTITUTION: A link unit 30 comprises a linking switchgear 31, a protective unit 32 for detecting a fault at the side A of a power system or the side C and separating solar cells 20 from the power system A, a transformer 33 and a filter 34 for bypassing higher harmonics. A lead-in wire 35 is connected to point C between a DC/AC converter 21 and the linking unit 30, and power is fed from the power system A through the linking unit 30 to respective homes 19. Harmonics produced in the DC/AC converter 21 flow to a load 22, and only a little bit thereof passes through the linking unit 30, and thereby it is not required for the DC/AC converter 21 to produce a clean sinusoidal wave. Consequently, only simple DC/AC conversion control is required and no augmentation of the filter 34 in the linking unit 30 is required. Furthermore, the cost can be reduced remarkably because only one linking unit 30 is required.
ISHIKAWA FUMIHIKO
MATSUMURA SHIGENORI
| JPS5921236A | 1984-02-03 | |||
| JPS61154431A | 1986-07-14 | |||
| JPS57151239A | 1982-09-18 |
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