An energy storage module for the reversible storage of electric energy is provided that comprises several flywheel energy storage units that are electrically connected in parallel via a shared DC link. A first regulation system is connected to the DC link and that, during normal operation (NO), connects the DC link to one or more external power networks in order to absorb (En) energy from or release (Ep) energy into the external power network(s). A second regulation system includes an input side and an output side, whereby the input side is connected to at least the DC link while the output side is connected to an internal supply network for purposes of supplying one or more electrically powered operating aggregates that are needed to operate the flywheel energy storage units.

A method and a control system using the same for coordinating control of a plurality of wind turbines of a wind farm during a fault in a utility grid to which power is to be delivered via at least one cable of the wind farm. The method includes: opening each of the electrical connections; selecting at least one wind turbine of the plurality of wind turbines according to a criteria where a sum of value for active power supply that is available from the selected at least one generator is equal or above a sum of values for active power consumption that is consumable by the energy storage system of the selected at least one wind turbine, the auxiliary equipment of the selected at least one wind turbine and the substation level auxiliary equipment; activating the selected wind turbine; for the selected wind turbine: electrically connecting the power input of its converter to the power output of its generator, electrically connecting the power output of its converter to the power input of its auxiliary equipment, the power input of its energy storage system and the corresponding cable, and electrically connecting the power input of a substation level auxiliary equipment to the cable which is electrically connected to the selected wind turbine; the activated wind turbine acting as active power supply for the substation level auxiliary equipment. The method and the control system using the same provide an effective and economic way of using the power generated by the wind turbine generator for powering the auxiliary equipment of the wind turbine, charging the energy storage system of the wind turbine and powering the substation level auxiliary equipment, during the wind farm operates in an islanding mode.

Fault-tolerant power distribution systems for modular power plants are discussed. The systems enable the transmission of a portion of the power generated by a modular power plant to remote consumers. The systems also enable the local distribution of another portion of the generated power within the power plant. The various fault-tolerant systems enable the plant to continuously, and without degradation or disruption, transmit power to remote consumers and distribute power within in the power plant in the event of one or more faults within the distribution system. The various embodiments include redundant power-transmission paths, power-distribution module feeds, switchgear, and other hardware components. Such redundant transmission paths and hardware enable the systems to continuously, and without degradation or disruption, transmit power to remote consumers and locally distribute power to the power plant when one or more faults occur within one or more of the redundant power-transmission paths and/or hardware components.

The present invention relates to a system (100) for supplying low-voltage DC power to at least one electronic communication device (3;6) in a power line carrier communication system furthermore including a power line carrier coupler comprising a coupling capacitor (10) electrically linked to a medium-voltage line (8) of a power distribution network. According to the invention, the system (100) comprises means (15) for generating a first low DC voltage value based on a current-to-voltage conversion of the leakage current related to said coupling capacitor (10), said first low DC voltage value being able to act as power supply to at least one active electronic component (13) of said at least one electronic communication device (3;6).

The present invention relates to a system (100) for supplying low-voltage DC power to at least one electronic communication device (3;6) in a power line carrier communication system furthermore including a power line carrier coupler comprising a coupling capacitor (10) electrically linked to a medium-voltage line (8) of a power distribution network. According to the invention, the system (100) comprises means (15) for generating a first low DC voltage value based on a current-to-voltage conversion of the leakage current related to said coupling capacitor (10), said first low DC voltage value being able to act as power supply to at least one active electronic component (13) of said at least one electronic communication device (3;6).

The present subject matter is directed to a wind turbine electrical power configured to minimize power losses. The power system includes a generator having a generator stator and a generator rotor, a power converter electrically coupled to the generator, a main transformer electrically coupled to the power converter and the power grid, and an auxiliary transformer. More specifically, the main transformer is connected to the power grid via a voltage line comprising a voltage switch gear. Thus, the auxiliary transformer is connected directly to the voltage line, i.e. rather than being connected to the grid through the main transformer.

The present subject matter is directed to a wind turbine electrical power configured to minimize power losses. The power system includes a generator having a generator stator and a generator rotor, a power converter electrically coupled to the generator, a main transformer electrically coupled to the power converter and the power grid, and an auxiliary transformer. More specifically, the main transformer is connected to the power grid via a voltage line comprising a voltage switch gear. Thus, the auxiliary transformer is connected directly to the voltage line, i.e. rather than being connected to the grid through the main transformer.

System and method for monitoring the condition of electricity conductor support systems, i.e. towers, in a power network distribution system employing a tower structure integrity sensor assemblage. The system allows for identifying particular portions of a structural system for maintenance attention. The tower sensors allow identification of structural failures of electricity transmission towers.

A control system for a single-axis solar tracking system includes a controller that communicates control signals. An alternating current (AC) powerline is connected to the controller. The AC powerline supplies power control for one or more solar tracker drive motors and propagates the control signals to the one or more solar tracker drive motors.

An information handling system receives power from a reversible power cable by selectively configuring outer pins to provide power or communication with a middle pin providing ground. A power manager of an information handling system embedded controller uses a low level of power input to determine which outer pin provides power and which provides communication, and then configures the connector to route power at a high level to the system charger for powering the information handling system.