ICDT

The main developments resulting from the use of the Smart microgrid platform designed for renewable energy sources integration in distributed grids, with measurement, control and data processing system, are:

• photovoltaic power plant: integrating an electrical energy storage system based on supercapacitors, which, besides maintaining a part of the power as reserve, also allows increasing the availability and controllability of the power produced by the plant;
• wind power plant: dynamic exploitation of a part of the kinetic energy of the rotor for frequency support of the microgrid, by adapting the various MPPT (Maximum Power Point Tracking) algorithms;
• micro-hydro-powerplants: integrating an electrical energy storage system based on supercapacitors intended to significantly reduce the transitory regime associated to direct start of an induction motor with a power similar to that of the generator;
• storage systems: using as voltage generator the storage system based on supercapacitors and an inverter controlled as VSG (virtual synchronous generator), that takes over the load only in transitory modes;
• active loads: development of an original method for compensating current harmonics using an active load;
• electrical urban vehicles charging stations with renewable sources supply: development of a heuristic control system for the microgrid-electrical vehicle assembly;

The particularities of the Integrated system for testing conducted electromagnetic perturbations of electrical and electronic equipments allow performing testing services for conducted electromagnetic perturbations for electrical and electronic equipment, as follows:

• Monitoring and superior harmonic and flicker testing of three and single phase equipments up to 30kVA;
• Testing of electrical and electronic equipment at voltage variations (burst/surge/dip) and perturbations generated by the magnetic field at grid frequency and impulse;
• Testing for high voltage of applications such as relays, photovoltaic cells, etc.;
• Testing the immunity of the electrical equipments to electrostatic air and contact discharges, within the voltage range of 200 V-30 kV;
• Testing of technical systems immunity to common mode conducted perturbations at frequencies within the range 0 Hz-150 kHz;
• Testing of electrical equipment immunity to radio-frequency electromagnetic perturbations induced in electrical power supply cables, within the range of frequencies 9 kHz-1 GHz.

Testing of electrical and electronic equipment to electromagnetic emission and immunity is performed according to current CEM standards (EN 61000, EN 61326, EN 60610, etc.), within an assembly of electromagnetic shielded rooms, efficient within the frequency range of 0-18 GHz, by means of specific testing test-benches existing in the laboratory.

The main innovative developments resulting from the use of Automated cryogenic helium closed circuit system for measurement of electrical and magnetic properties of materials at high and low temperatures, respectively Inerta-Pure Lab HE2 Glove Box, are the following:

• Obtaining magnetic materials and structures, and their complex magnetic and electric characterization;
• Development of special applications such as devices for magnetocaloric cooling, magnetic field and rotation sensors;
• Development of advanced and high sensitivity techniques for the magnetic and electrical characterization of materials within magnetic fields of up to 7 T and temperatures between 2-700 K. These techniques are integrated in the measurement system „7T Mini Cryogen Free Measurement System” - Cryogenic LTD;
• Development of a demonstrator using integrated circuit technology, able to measure both the intensity of the magnetic field (DC/AC) and its rotation angle in relation to the sensor.