4 results about "Pulse power systems" patented technology

This invention discloses a modular pulse-magnetized double-sided high-temperature superconducting linear synchronous motor. The motor uses high-temperature superconducting bulk material as the excitation magnet for the mover and utilizes a pulse magnetization device integrated into the magnetization section of the linear motor to achieve in-situ high remanence magnetization of the mover. The system consists of a pulse power supply system, a modular superconducting mover system, and a double-sided stator system. The pulse power supply system uses a large-capacity capacitor bank and, in conjunction with the split magnet coils in the motor's magnetization section, generates a millisecond-level strong pulsed magnetic field to achieve rapid high remanence magnetization of the high-temperature superconducting bulk material. The modular superconducting mover maintains the required low temperature for superconductivity through a Dewar structure, and the number of superconducting mover modules can be increased or decreased as needed to meet different thrust requirements. Simultaneously, the impact of local quenching is limited to a single module, preventing quenching from affecting other movers and improving system reliability. The double-sided stator structure reduces normal electromagnetic force, improves high-speed operation stability, and fully utilizes the double-sided high magnetic field advantage of the high-temperature superconducting mover to enhance the motor's thrust performance. This structure achieves a high degree of integration between the magnetization device and the motor stator, significantly improving the power density, operational stability, and maintenance convenience of the linear motor. It is suitable for applications with high requirements for the thrust performance and reliability of linear motors, such as electromagnetic launch and ultra-high-speed rail transit.

This invention relates to the field of relaxor ferroelectric ceramic dielectric energy storage materials, specifically to a sodium bismuth titanate-based relaxor ferroelectric ceramic and its preparation method, wherein the chemical composition of the sodium bismuth titanate-based relaxor ferroelectric ceramic is (1-x)BNLT. ‑x BAN, of which BNLT is 0.9Bi 0.5 Na 0.5 TiO3-0.1Bi 0.5 Li 0.5 TiO3, BAN is BaAl 0.5 Nb 0.5 The value of O3 and x ranges from 0.06 to 0.18. When x = 0.15, the ceramic exhibits excellent performance with a recoverable energy storage density (Wrec) of not less than 14.0 J / cm³ and an energy storage efficiency (η) of not less than 84% under an electric field of 775 kV / cm. This invention employs a solid-state reaction sintering process, which is simple to prepare and low in cost, making it suitable for high-performance energy storage capacitors in pulsed power systems.

The application relates to an electromagnetic emission pulse power module and a pulse power system, and belongs to the technical field of electromagnetic emission, which solves the problem that the existing pulse power module is not conducive to use and maintenance. The electromagnetic emission pulse power module comprises a pulse capacitor, an electrical module and a busbar device, the pulse capacitor is charged to a set voltage through constant current, is used for storing the required electric energy for electromagnetic emission, and can perform rapid pulse discharge on an electromagnetic emission device through the electrical module and the busbar device. The pulse power module is compact in structure, small in occupied space, the power module can be inserted into a cabinet for use, and is suitable for different electromagnetic emission systems.