Abnormality detection method, abnormality detection apparatus, and solar cell power generating system using the same
First Claim
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1. A power generator apparatus comprising:
- a. generator means comprising a plurality of photoelectric conversion elements connected in a parallel circuit; and
b. detection means comprising a detector for detecting outputs from the photoelectric conversion elements of the parallel circuit independently per each of the elements, and comparing means for setting as a standard value a particular value derived based on plural output values from the detector, and for comparing the output values obtained from measurement of the plurality of elements with the standard value, wherein, as a result of the comparing, when an output value from at least one of the photoelectric conversion elements is less than a predetermined value determined in relation to the standard value, the comparing means produces an indication that the output from the at least one photoelectric conversion element is less than the predetermined value.
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Abstract
It is an object of the invention to accurately detect a defective photoelectric conversion element regardless of the installation place and indicate the corresponding information. The above object can be achieved by a power generating system having a solar cell array constituted by a plurality of parallel-connected solar cell strings each consisting of a plurality of series-connected solar cell modules. The system includes electrical parameter detection units for measuring electrical parameters in solar cell strings, a comparing unit for mutually comparing the detected electrical parameters, and a unit for warning of an abnormality on the basis of the comparison result.
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33 Claims
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1. A power generator apparatus comprising:
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a. generator means comprising a plurality of photoelectric conversion elements connected in a parallel circuit; and b. detection means comprising a detector for detecting outputs from the photoelectric conversion elements of the parallel circuit independently per each of the elements, and comparing means for setting as a standard value a particular value derived based on plural output values from the detector, and for comparing the output values obtained from measurement of the plurality of elements with the standard value, wherein, as a result of the comparing, when an output value from at least one of the photoelectric conversion elements is less than a predetermined value determined in relation to the standard value, the comparing means produces an indication that the output from the at least one photoelectric conversion element is less than the predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A power generator apparatus comprising:
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generating means comprising a plurality of photoelectric conversion elements connected in a parallel circuit; detection means for detecting outputs from the photoelectric conversion elements of the parallel circuit independently per each of the elements; and comparing means for setting as a standard value a particular value derived based on the plural output values from the detection means, and for comparing the standard value with the output values obtained from the measurement of the plurality of elements, wherein, as a result of the comparing, when an output value from at least one of the photoelectric conversion elements is less than a predetermined value determined in relation to the standard value, the comparing means produces an indication that the output value from the at least one of the photoelectric conversion elements is less than the predetermined value. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A power generator apparatus comprising:
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generator means comprising a plurality of photoelectric conversion elements connected in a parallel circuit; detection means for detecting outputs from the photoelectric conversion elements of the parallel circuit independently per each of the photoelectric conversion elements; comparing means for setting as a standard value a particular value derived from plural output values from the detection means, and comparing the output values obtained from measurement of the plurality of elements with the standard value, wherein, as a result of the comparing, when an output value of at least one of the photoelectric conversion elements is less than a predetermined value determined in relation to the standard value, the comparing means produces an indication that the output value of the at least one of the photoelectric conversion elements is less than the predetermined value, and warning means for generating a warning based on the indication from the comparing means. - View Dependent Claims (32, 33)
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Specification