Power System-in-the-Loop testing concept for holistic system investigations

New testing and development procedures are needed to address topics like power system stability and control in the context of grid integration of rapidly developing new smart grid technologies. The main focus of this paper is to analyze the impact of the grid integration of smart grid equipment from the component perspective and from the system perspective, respectively and to propose appropriate testing methods. In order to cope with the challenges introduced by the integration of the afore-mentioned technologies, a holistic testing infrastructure needs to be considered and set up. For this purpose, the holistic multi-domain design concept is proposed to fulfill the needs of new smart grid technologies testing and development phases. The holistic Power System-in-the-Loop testing setup proposed by this paper has the advantage of a testing environment, which is very close to field testing, includes the grid dynamic behavior feedback and is risks-free for the power system, for the equipment under test and for the personnel executing the tests.