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Efficient distribution grid flexibility provision through model-based MV grid and model-less LV grid approach

In order to maintain security and quality of supply while supporting increased intermittent generation and electrification of heating and transport at the LV grid, the provision of flexibility in the framework of distribution grid operation is pivotal. However, the availability of updated and accurate LV grid model is a challenge for the distribution system operator (DSO). This paper demonstrates a methodology of efficient flexibility provision and activation through a sensitivity coefficients-based model-less LV grid and a modelled MV grid approach. The paper further illustrates the value of monitoring and control through a LV DERMS platform for efficient realisation of this flexibility provision and activation. The methodology has been tested on a real MV and LV network of a Swiss DSO. The results show that there is a reduction of cost of operation for a DSO.

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