Master's Thesis Felix Görg

 

Development and commissioning of a heat pump controller for sophisticated control strategies

heat pump controller Copyright: EBC

Against the background of the negative effects of climate change and the targeted reduction of primary energy consumption, the heat pump is often considered to be an important technology for the electrification of heat supply in the building sector. The heat pump uses ambient heat, which is made available for heat supply by means of electrical energy.

However field tests have shown, that in practice heat pumps do not meet the predicted performance due to their design, installation and operation deficits. This leads to an increased power consumption and consequently fails to accomplish targeted reduction of primary energy consumption. To solve this issue, numerous studies already suggest sophitisticated control strategies. However, there is a need for research concerning their actual implementation in heat pump controllers and experimental verification.

For this purpose, a heat pump controller for sophitisticated control strategies is developed. The heat pump controller is put into operation on a hardware-in-the-loop test bench. By doing so, requirements for the heat pump control are identified. Based on this, a heat pump controller with an open interface is developed, which enables communication with a system controller. The controller is developed by using the example of a brine-to-water heat pump. Afterwards the controller is comissioned on the test bench. The heat pump and its controller are tested under changing conditions on the test bench.

With the development of the heat pump controller and the successful commissioning, future evaluation of sophitisticated control concepts on the test bench is made possible. The sophitisticated control strategies can be implemented in a system controller. The paper also discuccses the possibilities for further research concerning the heat pump controller and its applications.