ICDT

The main developments resulting from the use of the Smart microgrid system for integrating renewable sources (RES) into distributed grids platform, with the data measurement, control and processing platform, 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 controlability of the power produced by the plant;
• Eolian power plant: dynamic exploitation of a part of the cinetic energy of the rotor for frequency support of the microgrid, by adapting the various MPPT (Maximum Power Point Tracking) algorythms;
• 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 asynchronous motor with a power similar to that of the generator;
• storage systems: using as voltage determiners the storage system based on supercapacitors and a VSG (virtual synchronous generator) controled inverter, that takes over the charge only in transitory modes;
• active charges: development of an original method for compensating current harmonics using an active charge;
• electrical urban vehicles with SER supply: development of an heuristic control system for the microgrid-electrical vehicle assembly;

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

• development of an heuristic control system for the microgrid-electrical vehicle assembly;
• Testing electrical and electronic equipment for voltage variation (succesive transitory impulses as rapid voltage changes - burst, electrical shock wave - surge, voltage dip) and perturbations generated by the magnetic field, the grid frequency and impulse;
• Testing for high voltage of applications such as relays, photovoltaic cerlls, etc.;
• Testing immunity of the electrical equipment to electrostatic air and contact discharges, within the range of 200 V-30 kV voltages;
• Testing technical system immunity to common mode conducted perturbations at frequencies within the range 0 Hz-150 kHz;
• Testing electrical equipment immunity to radio-frequency electromagnetic perturbations induced to electrical power supply cables, within the range of frequencies 9 kHz-1 GHz.

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

The main innovative developments resulting from the use of Automated criogenic 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 work station, are the following:

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