SINGLE OPERATION DETECTOR OF DISTRIBUTED POWER SUPPLY

Title:

SINGLE OPERATION DETECTOR OF DISTRIBUTED POWER SUPPLY

Document Type and Number:

Japanese Patent JP3808883

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a detector for detecting single operation of a distributed power supply accurately by suppressing deterioration in SN ratio for background noise even if the amount of injection current is decreased.
SOLUTION: The single operation detector comprises a current injector 32, and a supply stop detector 42. The current injector 32 injects an injection current Jm of injection order m repeating an injection interval for supplying an injection current of predetermined magnitude and a noninjection interval where substantially zero injection current sustains for a predetermined interval at a predetermined period into an incoming line 18. The supply stop detector 42 comprises a means for extracting and outputting the voltage and current by the injection current Jm by removing background noise from voltage Vt and current It measured at the incoming line 18, and an operating means for calculating the impedance or admittance of injection order m using the output voltage and current from the extraction means.

Inventors:

Fumio Yamamoto
Soji Nishimura
Natsuda Ikusen

Application Number:

JP2004176007A

Publication Date:

August 16, 2006

Filing Date:

June 14, 2004

Export Citation:

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