Subterranean energy storage system
    41.
    发明授权

    公开(公告)号:US12030732B2

    公开(公告)日:2024-07-09

    申请号:US17755777

    申请日:2020-11-06

    摘要: A subterranean energy storage system configured to store and subsequently release potential energy. Storage of potential energy is achieved by the transfer of a pseudo fluid from a first storage tank to a second storage tank located above the first storage tank, and is subsequently released by the transfer of the pseudo fluid from the second storage tank to the first storage tank. To transfer the pseudo fluid between the first and second storage tanks, the subterranean energy storage system comprises at least one continuous conveyor mechanism extending through at least one transport shaft, wherein the at least one continuous conveyor mechanism comprises a plurality of vessels arranged along a length of the continuous conveyor mechanism. The subterranean energy storage system further comprises an energy transfer means operably connected to the at least one continuous conveyor mechanism to transfer power to and from the subterranean energy storage system.

    Generator rotor assembly
    43.
    发明授权

    公开(公告)号:US12027955B2

    公开(公告)日:2024-07-02

    申请号:US17420727

    申请日:2020-01-09

    IPC分类号: H02K1/27 F03D9/25 H02K7/18

    摘要: A generator rotor assembly (42) comprises a cylindrical ring structure (46) defining a central hollow portion and arranged to rotate around a rotational axis. The cylindrical ring structure (46) comprises a plurality of permanent magnet packages (48) arranged coaxially around the rotational axis, the permanent magnet packages (48) comprising a plurality of coaxially stacked ring-shaped segmented layers (80), a plurality of tie rod holes (86) and a plurality of tie rods (54). The coaxially stacked ring-shaped segmented layers (80) comprise a plurality of contiguous segment sheets (82) arranged around the rotational axis to form the ring-shaped layer, the stacked layers (80) being staggered such that segment breaks between two contiguous segment sheets (82) in one of the layers are angularly offset with respect to segment breaks between two contiguous segment sheets (82) in an adjacent layer. The tie rod holes (86) extend axially through the layers of the permanent magnet packages (48), wherein the plurality of tie rod holes (86) of adjacent permanent magnet packages (48) are complementary in size and position, such that a plurality of tie rod bores is defined. The tie rods (54) extend through respective ones of the plurality of tie rod bores.

    CONTROL DEVICE FOR POWER GENERATION DEVICE
    46.
    发明公开

    公开(公告)号:US20240204616A1

    公开(公告)日:2024-06-20

    申请号:US17909934

    申请日:2021-02-16

    申请人: NTN CORPORATION

    发明人: Kouhei ONO

    IPC分类号: H02K7/18 H02K7/102 H02K11/30

    摘要: A power generation system includes a wind power generation device, a control device, and a power supply target. In power generation system, control device performs power conversion to a power generated by wind power generation device, and supplies the converted power to a power supply target. Control device has a reference map for controlling a power conversion device of the control device. Reference map is a map indicating a relationship between an input voltage to the control device (power conversion device) and an output power from the control device (power conversion device). When a start condition is satisfied, control device executes correction control for correcting reference map, and searches for a point at which an output power of power generation system is maximized while shifting the output voltage of a generator by MPPT control. Control device corrects reference map on the basis of a result of the search.

    UNDERWATER DUCTED HYDROELECTRIC POWER GENERATION SYSTEM

    公开(公告)号:US20240200527A1

    公开(公告)日:2024-06-20

    申请号:US18591072

    申请日:2024-02-29

    申请人: Yao LU

    发明人: Jirong LU Yao LU

    摘要: An underwater ducted hydroelectric power generation system is provided, including a ducted U-shaped pipe, a floating installation platform, a lifting pipe, a ducted coreless hydroelectric generator and a ducted coreless water transfer pump. The ducted U-shaped pipe is arranged underwater. The floating installation platform is configured to fix the ducted U-shaped pipe. A lower end of the lifting pipe is fixed on an underwater ground, and an upper end of the lifting pipe is slidably connected to the floating installation platform. The ducted coreless hydroelectric generator is fixedly provided in a water inlet pipe of the ducted U-shaped pipe. The ducted coreless water transfer pump is fixedly provided in the ducted U-shaped pipe.

    IMITATED PIRATE SHIP TYPE HYDROELECTRIC POWER GENERATION DEVICE

    公开(公告)号:US20240200525A1

    公开(公告)日:2024-06-20

    申请号:US18519400

    申请日:2023-11-27

    申请人: Shih-Hsiung CHEN

    发明人: Shih-Hsiung CHEN

    IPC分类号: F03B13/00 H02K7/116 H02K7/18

    摘要: An imitated pirate ship type hydroelectric power generation device includes a long box body (10) having an accommodating cavity (11) filled with a working fluid (WF), a hydro-turbine power generator unit (20) having an impeller (22) installed in the accommodating cavity (11) and a power generator (21) connected to the impeller (22), a pivot structure (30) installed at the top and situated in the middle of long box body (10), and a connecting structure (40) for connecting the pivot structure (30) and the long box body (10). After a force is applied to the long box body (10), the long box body (10) swings pivotally by the pivot structure (30) as the rotation center and the working fluid (WF) flows reciprocally in the accommodating cavity (11) and drive the impeller (22) to rotate to generate electric power from the power generator (21).

    Maglev generator assembly which reduces friction to enhance power generation efficiency

    公开(公告)号:US12009727B2

    公开(公告)日:2024-06-11

    申请号:US17872004

    申请日:2022-07-25

    申请人: Meng-Theng Wang

    发明人: Meng-Theng Wang

    摘要: A maglev generator assembly has a main axle extending through a casing. The main axle has its two ends magnetically levitated by maglev supports, and has its lateral side magnetically levitated by maglev bearings. A generator is configured on the main axle, which includes at least a rotating disc as rotor, with multiple inductive magnets circularly arranged around the rotating disc, and a number of coils fixed around the main axle as stator. A top end of the main axle is coupled to a transmission mechanism, which in turn is coupled to a fan unit or a motor as power source. The fan unit or motor drives the main axle, as well as the rotating disc to spin, and electrical current is induced as the inductive magnets rotates relative to the coils. The main axle is fully magnetically levitated and its rotation undergoes minimum friction to achieve high efficiency.