Power Quality Monitoring

▼Chapter 5SoftwareMS Excel VBAVBA (Visual Basic for applications) is an independent, object-orientated programming language for MS Office applications. It serves thepurpose of expanding the extent of functions of MS office products. Through the use of these programs (macros), MS Excel becomes evenmore powerful because MS Excel tables can be automated for example.Who can benefit from the MS Excel analysis tools?Analysis tools are applied when functions of the GridVis softwaresystems are not sufficient. They, therefore, make sense for complex costcentre analysis, large-scale applications and when measurement data hasto be compared with certain specifications. The MS Excel analysis toolscan be an affordable introduction to the world of process control technologyfor medium-sized companies which do not have their own buildingautomation and visualisation. But MS Excel analysis tools can alsooffer an option to make necessary data accessible to all members of staffin large companies in which all employees may not have access to buildingautomation. This means that consumption levels and power peakscan easily be passed on to controlling in customer specific form or invoicescan be issued directly from MS Excel if the MS Excel sheet alreadyhas an invoice template.▼ ●●●●●●●● ▼▼FunctionIllustration:graphic presentation of energy consumption per cost centreThe macros take the respective measurement data from the database created by GridVis and enter it in an MS Excel document. The timeperiods, for example, are now simply entered and the respective measurement values, consumptions, costs or other values calculated by MSExcel are issued as a graph or table. All MS Excel instruments are available for creating the MS Excel documents. The MS Excel macro isincorporated in MS Excel as an add-in. This can be used to create graphics of the building complex or systems. Set function keys can beused to zoom in on individual buildings or building parts in order to be able to monitor the incurred costs, consumptions or any othermeasurement data.Illustration: configuration of costs centres159