Solar cell module efficacy monitoring system and monitoring method therefor

Abstract

A solar cell module efficacy monitoring system includes a reference module which includes a solar power generation module and is to be maintained in a clean condition, an evaluation module which includes a solar power generation module and is to be covered by dust in an environment, maximum power point tracking devices which track powers of the reference module and the evaluation module and maintain power outputs at maximum points by connected to the reference module and the evaluation module, respectively, and, a PV communication recording device which records power generation results of the reference module and the evaluation module by connected to the reference module and the evaluation module, and a calculation display device which calculates power loss due to accumulation of dust on the evaluation module by connected to the PV communication recording device.

What is claimed is: 
     
         1 . A solar cell module efficacy monitoring system, comprising:
 a reference solar power generation module configured to be maintained in a clean condition;   an evaluation solar power generation module;   a recording device, connected to the reference solar power generation module and the evaluation solar power generation module, that records power generation results of the reference solar power generation module and the evaluation solar power generation module; and   a calculation display device, connected to the recording device, configured to calculate power loss due to accumulation of dust on the evaluation solar power generation module.   
     
     
         2 . The solar cell module efficacy monitoring system according to  claim 1 , further comprising a plurality of temperature sensors and configured to record operating temperature of the reference solar power generation module and operating temperature of the evaluation solar power generation module detected by the temperature sensors, wherein the sensor communication recording device is configured to be connected to the calculation display device. 
     
     
         3 . The solar cell module efficacy monitoring system according to  claim 1 , further comprising a solarimeter configured to measure an amount of solar radiation and configured to record the amount of solar radiation measured by the solarimeter, wherein the sensor communication recording device is configured to be connected to the calculation display device. 
     
     
         4 . The solar cell module efficacy monitoring system according to  claim 1 , wherein the reference solar power generation module, the evaluation solar power generation module, the recording device and the calculation display device are configured to transmit data between each other one of wire transmission, wireless transmission and power line transmission. 
     
     
         5 . The solar cell module efficacy monitoring system according to  claim 1 , further comprising a cleaning device connected to the reference solar power generation module and configured to clean the reference solar power generation module. 
     
     
         6 . The solar cell module efficacy monitoring system according to  claim 5 , wherein the cleaning device is configured to recycle and reuse washing liquid. 
     
     
         7 . A method for solar cell module efficacy monitoring, the method comprising:
 providing a reference solar power generation module configured to be maintained in a clean condition;   providing an evaluation solar power generation module;   recording power generation results of the reference solar power generation module and the evaluation solar power generation module; and   comparing the power generation results of the reference solar power generation module and the evaluation solar power generation module to determine power loss due to accumulation of dust on the evaluation solar power generation module.   
     
     
         8 . The monitoring method of  claim 7  further comprising recording a temperature of the reference solar power generation module and the evaluation solar power generation module. 
     
     
         9 . The monitoring method of  claim 7  further comprising measuring and recording an amount of solar radiation of the reference solar power generation module and the evaluation solar power generation module. 
     
     
         10 . The monitoring method of  claim 7  further comprising cleaning the reference solar power generation module. 
     
     
         11 . A solar cell module efficacy monitoring system, comprising:
 a reference solar power generation module configured to be maintained in a clean condition;   a cleaning device adjacent the reference solar power generation module and configured to clean the reference solar power generation module;   an evaluation solar power generation module;   a PV communication recording device, connected to the reference solar power generation module and the evaluation solar power generation module, that records power generation results of the reference solar power generation module and the evaluation solar power generation module; and   a calculation display device, connected to the PV communication recording device, configured to calculate power loss due to accumulation of dust on the evaluation module.   
     
     
         12 . The solar cell module efficacy monitoring system according to  claim 11 , wherein the cleaning device is configured to recycle and reuse washing liquid.