Author: Menghong Wang, Jiqi Liu, Jennifer L. Braid, Roger H. French
Date: 2021-04-14

# Outdoor Time Series I-V Curve Data from SDLE SunFarm

#### Menghong Wang, Jiqi Liu, Jennifer L. Braid, Roger H. French

#### 2021-04-14

## Data Description

This dataset comes from SDLE SunFarm, which provides extensive outdoor exposure capabilities, including mini-modules and full size modules mounted on both dual axis trackers fixed racks. Modules are individually controlled and operated by Daystar multi-tracer system at their peak power during daylight hours. Data acquired include time-series I-V curve data taken every 10 minutes, and time series power, voltage, current and weather data collected every minute.

## Load data and run code to extract IV features

    library(ddiv)
    data("IV_daystar")
    IVExtractResult(IV_daystar,k=4)

    ##      step   Isc    Rsh   Voc    Rs   Pmp   Imp   Vmp    FF Cutoff
    ## y419    1 0.267 69.845 0.554 0.135 0.112 0.241 0.464 75.72     NA

## Example output

The result is for finding steps for example data “IV_daystar”, no changepoint identifying step is found.