Abstract
The fundamental changes in the energy sector, due to the rise of renewable energy resources and the possibilities of the digitalisation process, result in the demand for new methodologies for testing Smart Grid concepts and control strategies. Using the Power Hardware-in-the-Loop (PHIL) methodology is one of the key elements for such evaluations. PHIL and other in-the-loop concepts cannot be considered as plug’n’play and, for a wider adoption, the obstacles have to be reduced. This paper presents the comparison of two different setups for the evaluation of components and systems focused on undisturbed operational conditions. The first setup is a conventional PHIL setup and the second is a simplified setup based on a quasi-dynamic PHIL (QDPHIL) approach which involves fast and continuously steady state load flow calculations. A case study which analyses a simple superimposed voltage control algorithm gives an example for the actual usage of the quasi-dynamic setup. Furthermore, this article also provides a comparison and discussion of the achieved results with the two setups and it concludes with an outlook about further research.
Highlights
The energy system has become a fundamental pillar of our society and has to be changed dramatically
A typical Power Hardware-in-the-Loop (PHIL) setup consists of three main parts, that are depicted in Figure 2 and described hereafter: the SUT, the PI and the Simulation Module [20,21,22,25,26]:
The simulated On-Load Tap Changer (OLTC) of the grid was actuated to step through the voltage range and to trigger the two (Q(U) and P(U)) control regimes
Summary
The energy system has become a fundamental pillar of our society and has to be changed dramatically. On 4 November 2016 in Paris, the world community committed to an agreement that will be keeping global temperature well below two degrees Celsius above pre-industrial level [4] To achieve this goal, the entirety of human society will have to change their energy supply infrastructure to a renewable energy-based system. The voltage was more stable with this specific product in comparison to the results of the PV inverter As this oscillation was caused by varying power in-feed, it was present in both configurations
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