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Test cases for hardware in the loop testing of air to water heat pump systems in a smart grid context

: Fischer, D.; Wirtz, T.; Dallmer-Zerbe, K.; Wille-Haussmann, B.; Madani, H.


International Institute of Refrigeration -IIR-:
24th IIR International Congress of Refrigeration, ICR 2015. Proceedings : Yokohama, Japan, August 16-22, 2015
Paris: IIF/IIR, 2015
ISBN: 9782362150128
International Congress of Refrigeration (ICR) <24, 2015, Yokohama>
Fraunhofer ISE ()

Heat Pumps for heating and cooling purposes could play an important role in the future energy system. Combined with a thermal storage they offer the possibility for demand side management applications in a smart grid. Optimized utilization of local solar resources can be achieved by increasingly sophisticated control strategies. Smart gird integration and the use of solar resources will bring new challenges to heat pump system design and operation. However standardized testing procedures to compare HP-systems and controllers in a dynamic and possibly smart grid environment are currently lacking. In this work a method to extract representative test days from energy data, to be used in a Hardware In The Loop test is presented. The resulting sequence of 12 test days is compared to the one year data set and tested in building simulation. Yearly heat generation and SPF can be reproduced with an accuracy of above 94% using the test days.