RESULTS

Within the third and final stage of the Disep project, the development of a product for both energy storage and protection of local micro-grids was finalized. The product is aimed at banks, medical units, data centers, laboratories, strategic interest units that require special security measures (against accidental fluctuations in the voltage of the power supply network as well as against parasitic disturbances including sabotage/espionage). The market potential of the product in the targeted market segment is significant, especially in a fragmented geopolitical context, with the EU aiming to strengthen the security of energy supply to its member states, based on political and economic commitment and reciprocal cooperation.

The invention solves a technical problem that consists in the creation of an inertial device that, in addition to the energy storage function, provides permanent protection against voltage peaks and parasitic elements by galvanically isolating the power supply circuit of this micro-grid from the industrial power grid. The objective of the DISEP project was fully achieved, within the framework of this project a prototype of an inertial flywheel system was designed, tested and validated, which uses a flywheel with a moment of inertia J = 2,3 kg*m² and a mass m = 170 kg, and at a maximum speed n_max = 10000 rpm, achieves the following charging (inertial storage) – discharging (by electric power delivery) parameters, established by the project: maximum acceleration time to n_max: ta_max = 30 [min], minimum discharge time: td_min = 10 [min], electric power delivered: Pd_min = 2000 [W].

The innovative product developed by the ICPE SA coordinator together with the project partners, the National Institute for Research-Development for Electrical Engineering Icpe-CA, Bucharest (ICPE-CA) and the Technical University of Cluj-Napoca (UTCN), will generate significant technological and economic effects and ICPE SA will thus expand its research capability and diversify its range of products adapted to new performance and efficiency requirements, assimilating the R&D results of the project partners. This work was supported by a grant from the Ministry of Research, Innovation and Digitization, CCCDI – UEFISCDI, project number PN-III-P2-2.1-PTE-2021-0639, within PNCDI III.

In the third stage of the project, the patent application was filed at the State Office for Inventions and Trademarks and registered with the OSIM registry under number A/00273 of 28.05.2024. The application requests the grant of a patent with the title: “INERTIAL DEVICE WITH TWO FLYWHEELS IN CONTRAROTATIVE MOTION FOR ENERGY STORAGE AND PROTECTION OF SPECIAL CONSUMERS”. The patent application contains the document “Declaration containing the designation of the inventors of the invention” in which inventors are nominated from each of the partners making up the project consortium, as follows: Dr. Eng. Vărăticeanu Dumitru-Bogdan (ICPE SA – coordinator), Eng. Demeter Lucian Nicolae (ICPE SA – coordinator), Eng. Matei Silviu Ștefan (ICPE SA – coordinator), Dr. Eng. Minciunescu Paul (ICPE SA – coordinator), Eng. Nicolescu Constantin (ICPE SA – coordinator), Dr. Eng. Tănase Nicolae (ICPE CA – partner P1), and Eng. Martiş Radu-Andrei (UTCN – partner P2).

Also, in the third stage of the project, the project partner UTCN obtained approval for the publication of a scientific paper in the proceedings of the 13th edition of the EPEi 2024 international conference (“13th IEEE International Conference and Exposition on Electrical and Power Engineering (EPEi 2024)”), which will take place on October 17-19, 2024, in Iaşi, Romania (https://www.epe.tuiasi.ro/). The scientific paper, entitled “Flywheel Energy Storage System Technologies: A Review and Prototype Development with Optimization Strategies” is authored by Radu Andrei MARŢIŞ (UTCN), Jurca Florin (UTCN), Răzvan Inte (UTCN), Claudia Steluţa MARŢIŞ (UTCN), Nicolae TĂNASE (ICPE-CA), Lucian Nicolae DEMETER (ICPE-SA).


Fig.1 – Development of the experimental model Disep (TRL4)	Fig.2 – Disep prototype development (TRL6)

Fig.3 – Testing and validation of the Disep prototype (TRL6)	Fig.4 – Development from the Disep experimental model (TRL4) to the Disep prototype (TRL6)

Fig.5 – 13th edition of the EPEi 2024 international conference (“13th IEEE International Conference and Exposition on Electrical and Power Engineering (EPEi 2024)”)

Fig.6 – Certificate of publication at EPEi 2024 of a scientific article	Fig.7 – Patent application registered with OSIM under number A/00273 of 28.05.2024

During the 2nd stage of the Disep project, the prototype of the inertial device for energy storage and protection of local electric microgrids was made.

Also, within the 2nd stage of the Disep project, 1 scientific paper was published with the authors Nicolae TĂNASE, Cristinel ILIE, Marius POPA, Lucian DEMETER, Dragoș OVEZEA, with the title “Inertial energy storage system. Applicative extension”, in vol. 13/2023 of the International Journal of Mechatronics and Applied Mechanics IJOMAM 2023 E-ISSN: 2559-6497. The magazine is indexed in international databases such as Scopus, Compendex, EBSCO, ProQuest.

The DISEP project presentation flyer was made. Between November 8-10, 2022, at the SPS 2022 international exhibition that took place in Nuremberg, Germany (Smart Production Solutions), the DISEP project leaflet was presented at the ICPE stand as part of the dissemination activity.

Download link: flyer DISEP project_phase 1.pdf

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