Operation SCADA Dataset of an Urban Small Wind Turbine in São Paulo, Brazil

The dataset file contains data regarding the electrical and mechanical operational actual quantities and parameters obtained and recorded by the internal inverter controller of a Skystream 3.7 small wind turbine (SWT) installed on the roof of the High Voltage Laboratory at the Institute of Energy and Environment (IEE) of the University of Sao Paulo (USP), Brazil, recorded from 2017 to 2022.

The main electrical parameters are the energy, voltages, and currents in the connection grid point and power frequency. Mechanical information can be retrieved, such as the rotation and the wind speed. The temperature, measured in some location points to the nacelle and inverter, is also recorded. Several other parameters concerning the SWT inverter operation, such as the dc voltages on its internal bus, alarms, and flags, are also presented.

The files in the dataset are named as "data_swt_iee_usp_YYYY.csv" where YYYY is the referring year. In the files, the semicolon symbol (;) is used as a column separator, while the dot symbol (.) represents the decimal separator. The first row of the CSV file corresponds to the header row to help identify data as described in the file "data_description.txt". Sampling rate one record per minute.

The first line on each year-based file represents the header table description of the data columns.

The complete and detailed information about the installation, localization,and analysis is in the article published at: https://doi.org/10.3390/wind2040037

LIST OS STATUS CODES - Skystream 3.7

Premise: Binary logic, where each status is represented by a specific bit within an integer value.

Numeric Code
Turbine Status
Grid Status
System Status

0
Normal. Run with energy generation
Normal (No faults detected)
Normal (System operating without errors)

1
Low Windspeed
L1 Low Voltage
HS Backoff

2
Braking
L1 High Voltage
SIP TX Too Long

4
Overspeed
L2 Low Voltage
Improper Reset

8
No Stall (Normal Operation)
L2 High Voltage
Battery Timeout

16
High Wind Test
Offset Limit
Drive Off

32
Anemometer mode
Phase Error
Slave Shutdown

64
Ramp
Frequency Low
Temp Shutdown

128
TSR Incr
Frequency High
High Temp

256
Power High
DPLL Unlock
Run (Normal Operation)

512
TSR Limit
Grid Disconnect
Disabled

1024
Quiet
Anti-Islanding
Waiting

2048
Incr Delay

Temp Backoff

4096
RPM Control

Bad Setpoints

8192
Vin High

Bad CRC

These codes can represent cumulative causes, adding values when multiple causes occur.

EXAMPLES:

Turbine status = 0  => Generating/Run

Turbine status = 1 => Low Windspeed

Turbine status = 3 => Low Windspeed and Braking

Turbine status = 9 => Low Windspeed and No Stall

Turbine status = 33 => Anemometer mode and Low Windspeed

System status = 1024 => Waiting

System status = 256 => Run

Grid status = 512 => Grid Disconect