Abstract: A battery energy storage system (BESS) is provided. The BESS includes a plurality of battery strings, a plurality of battery switchgear units, an internal power supply configured to supply DC power from within the BESS, and a controller coupled in communication with the plurality of battery switchgear units and electrically coupled to the internal power supply. The controller is configured to receive DC power from the internal power supply, instruct at least one battery switchgear unit of the plurality of battery switchgear units to electrically couple at least one battery string of the plurality of battery strings to a DC bus, receive DC power from the at least one battery string via the DC bus, and instruct each battery switchgear unit of the plurality of battery switchgear units to electrically couple each battery string of the plurality of battery strings to the DC bus.

Abstract: An auxiliary power system is provided. The auxiliary power system includes a back plane including one or more power inputs and a plurality of mating provisions. The back plane is configured to receive a first electrical power at the one or more power input and output the first electrical power through the plurality of mating provisions. The auxiliary power system further includes a plurality of power modules, each electrically coupled and mechanically coupled to the back plane at one of the plurality of mating provisions and configured to convert the first electrical power to a second electrical power. The auxiliary power system further includes a plurality of auxiliary devices each respectively electrically coupled to at least one power module of the plurality of power modules and configured to receive the second electrical power from the at least one power module.

Abstract: Systems and methods for controlling an energy storage system are provided. In particular data indicative of a load profile can be received. The load profile can specify one or more amounts of power to be delivered by an energy storage system over a duration. The energy storage system can include one or more energy storage elements of a first type and one or more energy storage elements of a second type. One or more time windows associated with high power events and one or more time windows associated with high energy events can then be determined based on the load profile. Power delivery by the energy storage elements of the first type and the energy storage elements of the second type can then be controlled based at least in part on the determined time windows.

Abstract: Systems and methods for controlling an energy storage system are provided. In particular data indicative of a load profile can be received. The load profile can specify one or more amounts of power to be delivered by an energy storage system over a duration. The energy storage system can include one or more energy storage elements of a first type and one or more energy storage elements of a second type. One or more time windows associated with high power events and one or more time windows associated with high energy events can then be determined based on the load profile. Power delivery by the energy storage elements of the first type and the energy storage elements of the second type can then be controlled based at least in part on the determined time windows.

Abstract: The present disclosure is directed to universal power conversion devices for alternating current electric apparatus. One example power conversion device includes a plurality of transformers and a plurality of terminal blocks. The plurality of terminal blocks comprise at least an AC input terminal block for receiving an input alternating current signal and a primary coil terminal block. The primary coil terminal block has a plurality of output terminals respectively connected to a plurality of taps of a plurality of primary coils of the plurality of transformers. A plurality of jumpers respectively providing electrical connection between respective output terminals of the AC input terminal block and input terminals of the primary coil terminal block are selectively reconfigurable for reconfiguring a power conversion applied to the input alternating current signal by the power conversion device.

Abstract: The present disclosure is directed to universal power conversion devices for alternating current electric apparatus. One example power conversion device includes a plurality of transformers and a plurality of terminal blocks. The plurality of terminal blocks comprise at least an AC input terminal block for receiving an input alternating current signal and a primary coil terminal block. The primary coil terminal block has a plurality of output terminals respectively connected to a plurality of taps of a plurality of primary coils of the plurality of transformers. A plurality of jumpers respectively providing electrical connection between respective output terminals of the AC input terminal block and input terminals of the primary coil terminal block are selectively reconfigurable for reconfiguring a power conversion applied to the input alternating current signal by the power conversion device.

Abstract: The present disclosure is directed to a system and method for reducing current variability between a plurality of energy storage devices, e.g. battery modules. In one embodiment, the method includes determining a resistance of at least two of the plurality of energy storage devices. Another step includes modifying an operating temperature of one or more of the plurality of energy storage devices when the resistance of one or more of the energy storage devices is outside of a predetermined tolerance range for the energy storage devices. Thus, the step of modifying the operating temperature of one or more of the plurality of energy storage devices causes the plurality of energy storage devices to operate within the predetermined tolerance range.

Abstract: A motor stator comprises a first stator frame part, a second stator frame part including first and second pole portions separated by a stator bridge, and two magnetic arms. Each of two bobbins is wound with a coil and situated on a respective one of the arms. The first and second stator frame parts are coupled by the arms so as to leave an opening between the two bobbins and the first and second frame parts for insertion of a rotor.

Abstract: A motor stator comprises a first stator frame part, a second stator frame part including first and second pole portions separated by a stator bridge, and two magnetic arms. Each of two bobbins is wound with a coil and situated on a respective one of the arms. The first and second stator frame parts are coupled by the arms so as to leave an opening between the two bobbins and the first and second frame parts for insertion of a rotor.