DISTRIBUTED POWER SUPPLY SYSTEM FOR DETECTING ABNORMALITY OR DETERIORATION OF ELECTRIC POWER LOAD AND CONTROL METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a distributed power supply system for detecting abnormality or deterioration of an electric power load.

SOLUTION: This distributed power supply system includes a fuel battery 40; an electric power load 44 previously transmitting an electric power request signal including an increment in the power consumption when the power consumption is increased; and a controller 50 controlling an electric power generated by the fuel battery 40 so that the electric power consumed by the electric power load 44 may be supplied on condition that the electric power showed by the electric power request signal can be supplied from the fuel battery 40 to the electric power load 44 when the electric power request signal is received from the electric power load 44, thus a consumption enable signal which shows that the electric power consumption may be increased is transmitted to the electric power load 44. The electric power load 44 increases the electric power consumption on the condition that the consumption enable signal is received from the controller 50. The controller 50 determines it to be the electric power load 44 in an abnormal or deteriorated condition if the difference between the increment of the power supplied to the electric power load 44 and the increase in the power consumption showed by the electric power request signal is over a predetermined tolerable value.

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