Abstract:
A system for connecting and disconnecting rail vehicle system for storing, transporting, and delivering bulk electric energy using railroads is described. The system includes. The system includes at least one rail vehicle system. The rail vehicle system includes a locomotive and a group of rail cars. The group of rails cars includes several rail cars with energy storage, power electronics and communication system. The rail car further includes a pantograph. The system also includes a plurality of electrical feeders. The electrical feeders are substantially dedicated for providing power transfer to and from the respective groups of rail cars. The system further includes at least one position controls system. The position control system is configured to be coupled to the geographical location of at least one electrical feeder, and it is substantially dedicated for aligning the geographical location of at least one group of rail cars with the geographical location of the respective electrical feeders for the group of rail cars. The system further includes energy management system for the controls of charging and discharging of onboard energy storage on the rail vehicle system.
Abstract:
A system for charging electric vehicles (EVs) includes at least one transportable battery-energy-storage DC systems (BESDCS), at least one renewable direct-current (DC) power supply station at a first location. The system also includes at least one DC charging station for charging of the at least one EV at a second location different from the first location. The system further includes at least one electric tanker transport comprising at least one electric truck vehicle configured to be coupled to the at least one BESDCS. The electric tanker transport is configured to transport the at least one BESDCS from the first location to the second location for charging of the at least one EV and transport the at least one BESDCS from the second location to the first location for charging the at least one BESDCS from renewable DC power supply station.
Abstract:
A high voltage, high power multi-level drive structure includes a plurality of neutral-point-piloted (NPP) converter cells stacked together. At least one clamping diode is connected to one or many NPP converter cells to provide a neutral-point-pilot-clamped (NPPC) converter structure. Flying capacitors connected to the NPPC converter structure yield a neutral-point-clamped-flying-capacitor converter cell structure.
Abstract:
A high voltage, high power multi-level drive structure includes a plurality of neutral-point-piloted (NPP) converter cells stacked together. At least one clamping diode is connected to one or many NPP converter cell to provide a neutral-point-pilot-clamped (NPPC) converter structure. Flying capacitors connected to the NPPC converter structure yield a neutral-point-clamped-flying-capacitor converter cell structure.
Abstract:
This patent document discloses power electronic transformers having a high-frequency link. An example apparatus include a transformer having a primary winding and a secondary winding, the transformer is configured to receive a primary power signal having a first frequency, a primary converter configured to selectively oscillate polarity of the primary windings with respect to the secondary windings at a second frequency, the second frequency substantially substantially higher than the first frequency, a secondary converter coupled to the secondary winding, the secondary converter configured to provide a load power signal using a high frequency power signal generated using the secondary winding. The secondary converter can be configured to reduce current flow in the primary winding when the polarity of the primary winding is switched, the reduced current follow is configured to reduce disturbances resulting from leakage inductance of the transformer.
Abstract:
A method and system for storing excess data in a redundant array of independent disks (RAID) level 6 are disclosed. In one embodiment, a method for storing excess data in a RAID 6 volume includes writing excess data to Q parity blocks of a first RAID 6 volume when a receipt of the excess data directed to the first RAID 6 volume is detected subsequent to a saturation of the first RAID 6 volume, where the first RAID 6 volume is converted to a pseudo-RAID 5 volume with P parity blocks. The method further includes re-computing the P parity blocks of the pseudo-RAID 5 volume based on data blocks of the pseudo-RAID 5 volume. In addition, the method includes constructing a second RAID 6 volume based on the pseudo-RAID 5 volume when at least one additional drive is inserted to the pseudo-RAID 5 volume.
Abstract:
A bladed disk assembly device having a horizontal adjustable arm and a vertical pivot bar that is perpendicularly attached to a first end of the horizontal arm. A roller assembly is attached to a second end of the horizontal arm. A rotary table holds a disk that is circumvented by a blade positioning belt around an outer diameter of the turbine disk. A saddle is attached to the vertical pivot bar that is positioned beneath the disk.
Abstract:
The invention relates to compositions and composite particles that may be employed as anode materials for Solid Oxide Fuel Cells (SOFCs). The invention particularly relates to novel metallic SOFC anode materials, which preferably comprise metallic nickel (Ni), copper (Cu), especially if the Ni/Cu oxide has been stabilized with yttrium (Y) oxide (e.g., Y2O3) and/or zirconium (Zr) oxide (e.g., ZrO2) composition(s) (“YSZ”). Such compositions may additionally comprise a cerium (Ce) oxide (such as CeO2) (e.g., Ni/YSZ/CeO2). The invention particularly concerns such compositions and particles produced through the use of direct deposition or Flame Spray Pyrolysis so as to provide a controlled morphology and chemical composition.
Abstract translation:本发明涉及可用作固体氧化物燃料电池(SOFC)的阳极材料的组合物和复合颗粒。 本发明特别涉及新型金属SOFC阳极材料,其优选包括金属镍(Ni),铜(Cu),特别是如果Ni / Cu氧化物已用氧化钇(Y)(例如Y 2 O 3)和/或锆 (Zr)氧化物(例如,ZrO 2)组合物(“YSZ”)。 这样的组合物可另外包含氧化铈(Ce)(例如CeO 2)(例如Ni / YSZ / CeO 2)。 本发明特别涉及通过使用直接沉积或火焰喷雾热解制备的这种组合物和颗粒,以提供受控的形态和化学组成。
Abstract:
Memory systems and accessing methods are disclosed. In one embodiment, a method of accessing a memory device includes accessing a first end of the memory device regarding a first data type, and accessing a second end of the memory device regarding a second data type.