Abstract: A switch for a medium or high voltage traction line testing device includes a plurality of normally-opened pairs of contacts connected in series, wherein each pair of contacts is equipped with a separate control coil. The switch further comprises a wireless power transfer supply module being on ground potential for supplying cascaded wireless power transfer receivers comprising the transmitting coil, high frequency inverter and microcontroller, a plurality of cascaded wireless power transfer receivers for supplying control coil of pairs of contacts. Each of the wireless power transfer receivers is referenced to the floating potential and comprises a receiving coil. Each of the control coils is connected to one of the wireless power transfer receivers. The receiving coils of the wireless power transfer receivers are magnetically coupled, and a wireless power transfer supply module is located in the middle of the cascaded wireless power transfer receivers.

Abstract: A power line system is provided for efficiently using excess electrical energy produced by electric vehicles in a generation mode. A power line detector on the vehicle senses the power line to determine if voltage ripples are present before supplying excess electrical energy from the vehicle to the power line. First voltage ripples are generated on the line by a substation providing power to the power line. Second voltage ripples are also generated on the power line by a ripple generator to allow excess energy from the vehicle to be supplied to the power line in order to charge an energy storage system.

Abstract: A method for estimating battery degradation includes acquiring battery parameters, characteristics of calendar ageing wearing, cycle ageing wearing coefficient BWC2, wherein BWC1 is a function of State of Charge and BWC2 is a function of charging/dis-charging rate, acquiring and/or calculating instantaneous values of SoC and C-rate of a battery in a defined period, reading instantaneous values of calendar ageing wearing coefficient BWC1 and/or instantaneous values of cycle ageing wearing coefficient BWC2 corresponding to instantaneous values of SoC and C-rate of a battery acquired previously, using characteristics of calendar ageing wearing coefficients acquired and determining value of calendar ageing wearing index BWI1 by referring integrated instantaneous values of BWC1 determined to the integrated instantaneous values of BWC1 for a period of nominal operation time with maximum allowable value of the SoC.

Abstract: A method of controlling battery energy storage comprises a renewable active power source (PR), a battery energy storage system (BESS), at least one static load (PLoad) and at least one high dynamic load PH.LOAD. Active power demand of the system in the point of common coupling is at quasi-constant level. The method further includes gathering constant active power limit from the external grid (PGRID) and historical data of active power profiles of: predicting the following active power profiles for day+1, calculating required active power of the battery energy storage system, setting daily peak of state of charge and minimum state of charge of the battery energy storage system, and verifying whether daily peak of state of charge and minimum state of charge ensure that instantaneous values of state of charge through the entire day of the battery energy storage system is within range of 20% to 80%.

Abstract: A power line system is provided for efficiently using excess electrical energy produced by electric vehicles in a generation mode. A power line detector on the vehicle senses the power line to determine if voltage ripples are present before supplying excess electrical energy from the vehicle to the power line. First voltage ripples are generated on the line by a substation providing power to the power line. Second voltage ripples are also generated on the power line by a ripple generator to allow excess energy from the vehicle to be supplied to the power line in order to charge an energy storage system.

Abstract: A switch for a medium or high voltage traction line testing device includes a plurality of normally-opened pairs of contacts connected in series, wherein each pair of contacts is equipped with a separate control coil. The switch further comprises a wireless power transfer supply module being on ground potential for supplying cascaded wireless power transfer receivers comprising the transmitting coil, high frequency inverter and microcontroller, a plurality of cascaded wireless power transfer receivers for supplying control coil of pairs of contacts. Each of the wireless power transfer receivers is referenced to the floating potential and comprises a receiving coil. Each of the control coils is connected to one of the wireless power transfer receivers. The receiving coils of the wireless power transfer receivers are magnetically coupled, and a wireless power transfer supply module is located in the middle of the cascaded wireless power transfer receivers.