A grid power configuration may provide a reliable, efficient, inexpensive and environmentally conscious power source to a site, for example, a remote site such as a well services environment. Grid power may be provided for one or more operations at the site by coupling a main breaker to a switchgear unit coupled to one or more loads. The switchgear unit may be coupled to the main breaker via a main power distribution unit and may also be coupled to one or more loads. At least one of a grid power unit and a switchgear unit may be coupled to the main breaker via the main power distribution unit and may also be coupled to one or more additional loads. A control center may be communicatively coupled to the main breaker or any one or more other components to control one or more operations of the grid power configuration.

A system and method are provided for managing flicker generated by a wind farm. Accordingly, the farm controller detects at least one parameter of the wind farm indicative of an output flicker resulting from a synchronized flicker of at least two turbines of the plurality of wind turbines. Upon detecting the parameter, the farm controller generates a command offset for at least one wind turbine of the at least two wind turbines. An operating parameter of the at least one wind turbine is changed based on the command offset so as to de-synchronize the synchronized flicker in the output signals of the at least two wind turbines.

The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable. The measured data are used in the power plant controller for determining setpoints for controlling the wind turbine generators' production of active and reactive power. In response to detection of a communication fault a new setpoint is determined independently of new measured grid data by reconfiguring parts of the power plant controller.

A method for operating a renewable energy power plant comprising a plurality of renewable energy generators, a plurality of power dissipation systems and a battery storage system is provided. The method comprises steps of: monitoring the statuses of the power dissipation systems; performing a ramped active power recovery operation following a voltage deviation, and controlling the battery storage system during the ramped active power recovery operation to absorb power generated by the renewable energy generators in dependence on the monitored statuses of the power dissipation systems.

Batteries, battery systems, battery submodules, battery operational methods, battery system operational methods, battery charging methods, and battery system charging methods are described. According to one aspect, a battery includes a first battery terminal, a second battery terminal, and a plurality of submodules individually comprising a first submodule terminal, a second submodule terminal, a plurality of rechargeable cells electrically coupled between the first and second submodule terminals, and switching circuitry configured to electrically couple one of the first and second battery terminals with one of the first and second submodule terminals of one of the submodules during an engaged mode of operation of the one of the submodules and to electrically isolate the one of the first and second battery terminals from the one of the first and second submodule terminals of the one of the submodules during a disengaged mode of operation of the one of the submodules.

An electric power generating system is provided. The system comprises three sources of power including a set of fuel cells, a rechargeable battery, and a supercapacitor, wherein the distribution of power flowing from each of the sources to the other and to a user is controlled by a power control system.

A motor vehicle multi-voltage battery device includes a first output current terminal and a ground terminal providing a first rated voltage; a second output current terminal and the ground terminal providing a second rated voltage; a first battery cell group, electrically connected to the first output current terminal and to the ground terminal; a second battery cell group, electrically connected to the second output current terminal and to the first output current terminal and switchably connected in series with the first battery cell group; a charging current terminal connecting the multi-voltage battery device to an external current source; a first DC voltage converter electrically connected on the input voltage side to the charging current terminal and on an output voltage side to a first positive pole, and configured to convert an input voltage at the charging current terminal to a first charging voltage for charging the first battery cell group.

A battery for a motor vehicle, having multiple battery cells which include respective battery cell housings with electric terminals via which the battery cells are electrically connected to one another. In the battery cell housings, in each case a cell branch connecting the terminals, with a galvanic cell, is arranged, and in each case several of the battery cells are connected to one another in parallel connection to form respective cell blocks. Each cell branch includes a switching element for opening and closing the cell branch; the battery has a control device which is configured in order to actuate the switching elements of the cell branches for opening or closing the switching elements as a function of a performance requirement of an electric drive of the motor vehicle.

Systems and methods for improved anomaly detection for rotating machines. An example method may include determining that power generation is to be performed based on a voltage instead of a power factor; receiving a command voltage; receiving a measured voltage value from a first location in a power generation network; determining that the measured voltage value from the first location is less than the command voltage value; determining that a current value associated with a transmission line at the third location is less than a threshold current value; determining that a reactive power of a power generation component at a third location is less than a maximum reactive power of the component; and increasing, based on the determination that the reactive power of the component at the third location is less than a maximum reactive power of the component, the reactive power of the component.

The invention relates to a receiver unit (200), which is configured to cooperate with a transmitter unit (100) separate from the receiver unit for the wireless transfer of energy, said transmitter unit (100) comprising a primary coil (L.sub.1), which can be supplied with a supply voltage (U.sub.V), wherein the receiver unit (200) comprises a secondary coil (L.sub.2), to which a first intermediate circuit capacitor (C.sub.Z,1) is connected via a rectifier (210), and a power unit (240), to which a consumer (225) and/or an energy store (220) are connected, wherein the receiver unit (200) comprises a second intermediate circuit capacitor (C.sub.Z,2), to which the power unit (240) is connected, wherein the first intermediate circuit capacitor (C.sub.Z,1) and the second intermediate circuit capacitor (C.sub.Z,2) are connected to one another in a separable manner via a switch (S.sub.7), and wherein the receiver unit (200) comprises an auxiliary supply unit (250), which is connected to the rectifier (210) for the purpose of voltage supply and which is configured to close the switch (S) to connect the first intermediate circuit capacitor (C.sub.Z,1) to the second intermediate circuit capacitor (C.sub.Z,2) when an output voltage (U.sub.out,H) of the auxiliary supply unit (250) exceeds a specified threshold value.