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LabVIEW projects - Power Management
Power Management Application for Methanol FactorySander Brouwer (ChemE)
At ChemE the power consumption of an experimental Methanol Factory is being measured with a new Power Management Application. This application also measures the power generated by a Photo Voltaic cell and a Windturbine.
The presented vi connects to a series of Carlo Gavazzi WM14 power analyzers. An Advantech PCI-1601A 2 port RS-422/485 card is used to enable the connection.
The basic principle of the vi is that three loops will be launched after the initialisation. One loop will walk through the following steps once a second:
A second loop will update the data for the selected graph once a second.
A third loop will check for events (=mouse clicks). It's primary use is to act on a click on the 'Lock' or 'Unlock' button.
The power consumption/generation is being measured on a continuous basis and the application allows to look back for the values during the last 24 hours. Older data can be found in the data files generated by the application. A separate vi allows to read these data files and converts them to spreadsheet files (comma separated values).
Note: All vi's have been made with LabVIEW 6.1 Full Development System.
For more information on the power analyzer vi's please check the Carlo Gavazzi - WM14 power analyzer page.
The presented vi resembles but is a complete makeover of the Battery Management System vi created by TNO-MEP.
At the time the department of chemical technology of the Delft University of Technology ChemE was named DelftChemTech.
Bart Boshuizen, 2005/12/21