INDIVIDUAL OPERATION DETECTION CIRCUIT, INDIVIDUAL OPERATION DETECTION METHOD, AND SYSTEM INTERCONNECTION INVERTER DEVICE INCLUDING INDIVIDUAL OPERATION DETECTION CIRCUIT
PROBLEM TO BE SOLVED: To provide an individual operation detection circuit capable of detecting individual operation in an easy way.SOLUTION: The individual operation detection circuit includes a target value change instruction unit 61 which instructs to vary the reactive power at an interconnection...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
05.12.2013
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide an individual operation detection circuit capable of detecting individual operation in an easy way.SOLUTION: The individual operation detection circuit includes a target value change instruction unit 61 which instructs to vary the reactive power at an interconnection point of a system interconnection inverter system A, and an individual operation determination unit 62 for determining whether or not the system interconnection inverter system A is in the individual operation state, on the basis of a reactive power value Q detected at the interconnection point. For example, the individual operation determination unit 62 determines that the reactive power value Q has not changed if the variation Q of reactive power value Q is smaller than a predetermined value, and determines that the system interconnection inverter system A is in the individual operation state when determination is made that the reactive power value Q has not changed repeatedly a predetermined number of times. |
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Bibliography: | Application Number: JP20120116437 |