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公开(公告)号：WO2021219888A1
公开(公告)日：2021-11-04
申请号：PCT/EP2021/061479
申请日：2021-04-30
Applicant: GRAVITRICITY LIMITED
Inventor： FRANKLIN, Miles , FRAENKEL, Peter
Abstract: An energy storage system that enables energy storage (charge) and discharge linked to an external power system such as an electricity grid to store energy using a multi-weight gravity-based storage arrangement across the full energy capacity of the system at a desired power level without interruption and may also provide intermittent surge storage/supply to the external system in an efficient and effective manner is provided by a system having an input and output connection with external power system, a primary energy storage arrangement of a multi-weight gravity-based energy storage system having a primary energy capacity and characterized by discontinuities in power flow capability and a secondary energy storage arrangement configured for cooperative and/or complimentary operation with the primary energy storage arrangement and having a secondary energy capacity in which the secondary energy storage arrangement operates cooperatively and/or complimentary with the primary energy storage arrangement to provide the energy storage system with one or more of: a continuous input or output power during a charge or discharge cycle across at least two energy events separated by a discontinuity in output of the primary energy storage arrangement; an enhanced or faster system start-up response whereby the system reaches a desired power input/output level using both the primary energy storage arrangement and the secondary energy storage arrangement simultaneously; an enhanced system discharge halting capability to rapidly halt discharge to an external power system without a power output surge above a desired system power output; and a power surge input/output capability for short durations to input or output power at a power level above the normal power output of the system.
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2.发明申请
公开(公告)号：WO2018134620A3
公开(公告)日：2018-07-26
申请号：PCT/GB2018/050170
申请日：2018-01-19
Applicant: GRAVITRICITY LIMITED
Inventor： FRANKLIN, Miles , FRAENKEL, Peter
Abstract: An energy storage system comprising a plurality of cables, a weight attached to respective end regions of the plurality of cables so that the weight can be raised and lowered through a substantially vertical distance by winch means, wherein the cables extend from the weight, through the winch means and subsequently directed through the substantially vertical distance and attached at opposite end regions to a second weight which is moved in an opposite direction to the first-mentioned weight through the substantially vertical distance, the arrangement being such that the passage of movement of the second weight does not interfere with the passage of movement of the first- mentioned weight.
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3.发明申请
公开(公告)号：WO2018134620A2
公开(公告)日：2018-07-26
申请号：PCT/GB2018/050170
申请日：2018-01-19
Applicant: GRAVITRICITY LIMITED
Inventor： FRANKLIN, Miles , FRAENKEL, Peter
Abstract: An energy storage system comprising a plurality of cables, a weight attached to respective end regions of the plurality of cables so that the weight can be raised and lowered through a substantially vertical distance by winch means, wherein the cables extend from the weight, through the winch means and subsequently directed through the substantially vertical distance and attached at opposite end regions to a second weight which is moved in an opposite direction to the first-mentioned weight through the substantially vertical distance, the arrangement being such that the passage of movement of the second weight does not interfere with the passage of movement of the first- mentioned weight.
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