@thesis{Muelazimoglu2023, author = {M{\"u}lazimoglu, Aslihan}, title = {Non-isolated microgrid business models for low voltage applications}, subtitle = {a case study in southern Brazil}, publisher = {Technische Hochschule Ingolstadt}, address = {Ingolstadt}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:573-37329}, pages = {viii, 55}, year = {2023}, abstract = {Power systems globally are undergoing a significant transformation driven by the need to transition from fossil fuel-based systems to low-carbon and renewable energy sources. Increasing distribution energy resources penetration has led to the development of local generation and consumption ideas and, consequently, the emergence of the microgrid concept. However, the displacement of traditional power plants by distributed energy resources, especially in low voltage grids, poses new challenges for distribution grids' operation, such as voltage control. The reactive power support capability of distributed energy resources, one of the microgrid components, makes them a potentially useful source for voltage issues. However, this support should be allowed within the framework permitted by regulations. Although the Brazilian power system is mainly based on renewable energy sources, Brazilian legislation does not support the potential service capability of distributed energy resources. Moreover, the absence of an ancillary services market and the non-remuneration of ancillary services are the main reasons for distributed energy resources and microgrids not participating in such services. This thesis proposes developing two business models for a non-isolated microgrid in Brazil, one that considers regulations and one that can be described as innovative by not considering regulations. The business model has been developed with a reactive energy compensation approach in which PV inverters are used. Furthermore, two different remuneration mechanisms have been proposed for the innovative business model. The microgrid where the developed business models are implemented is modelled and simulated in Open Distribution System Simulator with IEEE 13-node test feeder. Since the simulated microgrid does not have any voltage issues, sensitivity analysis is performed to be able to provide more accurate results. The sensitivity analysis results show that the proposed remuneration mechanism can motivate the microgrid to provide ancillary services, resulting in a profit for the microgrid and mitigating voltage problems of the distribution grid.}, language = {en} }