| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a system power from being cut off and an interconnected inverter from charging it reversely and also to suppress the influence on the system power at the time of unnecessary detection, in a interconnected inverter which is utilized for solar light generating system. <P>SOLUTION: The interconnect inverter 1 is equipped with a received power metering means 3 for metering the power received from the system power 2, and a detected sensitivity improving means 5 for raising the detection sensitivity of single operation, by controlling it so that the power difference between generated power and a home load may be unbalanced, in case that the power difference between the generated power and the home load is under a specified quantity from the metered received power and that a means 4 for detecting the single operation of the interconnected inverter 1 judges that it might be in a single operation state. Accordingly, even if the generated power and the load power are balanced, it controls them into an unbalanced state thereby improving the detection sensitivity of single operation, thus the effect of making it a safer system can be obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT |
