Photovoltaic power generation system evaluation apparatus and evaluation method

A technology of power generation system and evaluation device, applied in circuit devices, photovoltaic power generation, monitoring of photovoltaic systems, etc., can solve problems such as troublesome measurement, achieve accurate performance evaluation, change the structure of the measuring device, and simplify the structure of the measuring device. Effect

Inactive Publication Date: 2018-02-06
NAT INST OF ADVANCED IND SCI & TECH +1
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  • Photovoltaic power generation system evaluation apparatus and evaluation method
  • Photovoltaic power generation system evaluation apparatus and evaluation method
  • Photovoltaic power generation system evaluation apparatus and evaluation method

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Embodiment Construction

[0041] A solar power generation system evaluation device 100 according to an embodiment of the present invention will be described with reference to the drawings.

[0042] The solar power generation system evaluation device 100 of this embodiment is used to evaluate the characteristics of a solar power generation system such as figure 1Shown is equipped with: a solar battery panel SP composed of a plurality of solar battery cells; and a PCS1 (power control system) that controls the operation of the solar battery panel SP using MPPT control.

[0043] More specifically, the solar power generation system evaluation device 100 performs outdoor performance evaluation on the premise that the solar power generation system follows the maximum operating point to generate power even when the illuminance of sunlight changes.

[0044] That is, the solar power generation system evaluation device 100 is as figure 1 It includes: a plurality of illuminance sensors 2 arranged around the solar...

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Abstract

In order to provide a photovoltaic power generation system evaluation apparatus and evaluation method that is capable of measuring the performance of a photovoltaic power generation system accuratelywhile using simple equipment outdoors using sunlight, there are provided a plurality of illumination intensity sensors disposed in the vicinity of the photovoltaic panels, and an evaluator that is connected to a PCS and to the sensors, and evaluates the performance of the photovoltaic power generation system based on outputs from each of these, and the evaluator includes an output acquisition unitthat acquires an output of the photovoltaic panels from the PCS, a consistency degree calculation unit that calculates a degree of consistency in illumination intensity measurement values measured bythe sensors, and a determination unit that, when the degree of consistency is within a predetermined permissible range, determines that the output of the photovoltaic panels acquired by the output acquisition unit is a true value.

Description

technical field [0001] The present invention relates to a photovoltaic power generation system evaluation device and evaluation method for evaluating the performance of a photovoltaic power generation system installed outdoors. Background technique [0002] When evaluating the performance of solar cells and solar panels composed of multiple solar cells, I-V characteristics are measured, and the performance is evaluated based on the results. [0003] However, as shown in the measurement results of Patent Document 1, for example, the I-V characteristic of a solar battery cell varies greatly depending on the illuminance of light irradiated to the solar battery. Therefore, in the indoor measurement, the I-V characteristic was measured so that the illuminance of the light irradiated to the solar cell by the solar simulator was maintained at 1 sun. The I-V characteristics measured under the illuminance of 1 sun in this way are treated as the I-V characteristics under the standard...

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Application Information

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IPC IPC(8): H02S50/00
CPCH02S50/00H02J2300/26H02J3/381Y02E10/56H02J3/46H02S50/10
Inventor 菱川善博小岛久嗣藤田裕司武田佳和
Owner NAT INST OF ADVANCED IND SCI & TECH
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