Result description
This methodology estimates – in a given time fame of e.g. 15min – the range within which the distribution grid can act as Frequency Containment Reserve.
Supposing that a number of DRES have the ability to operate under a P-f droop (both in over- and underfrequency domain) the methodology estimates the range of possible aggregated P-f droop at the point of interconnection of the distribution grid with the transmission system in a given time frame taking into account the technical constraints in the distribution grid. The cost for providing this range is also estimated based on the cost-functions of the DRES. This range is submitted to the TSO in order to consider the distribution grid as a possible dynamic virtual power plant. It is supposed that the TSO replies and asks for a certain P-f droop within the range and agrees with the offered value of the cost. A complementary methodology allows the Aggregator to estimate the optimum dispatch of this service among the available portfolio of the DRES. The optimization function can be anyone but the most profound, if we consider an AS, is the minimization of the cost of the Aggregator.
Addressing target audiences and expressing needs
- To raise awareness and possibly influence policy
- Collaboration
Firstly, we are looking for partners (mainly DRES manufacturers that can make Unified Virtual Synchronous Generator (UVSG)-like converters, DSOs, and Aggregators) to pursue demonstration projects in order to advance the maturity of the product to TRL6-8. Secondly, transfer the findings/ Intellectual Properties to DSOs and Aggregators.
- Public or private funding institutions
- EU and Member State Policy-makers
- Research and Technology Organisations
R&D, Technology and Innovation aspects
Currently, the methodology has been tested via simulations. Lab testing is still pending. Next step required is the testing in actual relevant environment in order to reach TRL 6-7. DSOs, Aggregators, and converter manufacturers are welcome to enable such demonstration.
The methodology uses the number, the power, and the location of the DRES that can operate under a P-f droop. The addressing of the technical constraints is generic. Thus, the methodology is scalable.
The methodology is replicable provided the distribution grid is of radial form.
Currently, the Primary Frequency Response is an established Ancillary Service because it is vital for the system stability. The necessity for this service increases with the DRES penetration. This methodology allows individual DRES and whole distribution grids participate in this service mitigating the negative impact on the system stability due to the intermittency of the DRES.
Result submitted to Horizon Results Platform by ARISTOTELIO PANEPISTIMIO THESSALONIKIS
