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Patent application for flywheel energy storage technology

A compact energy storage system includes a high speed rotating flywheel and an integral motor/generator unit. The rotating components are contained within a vacuum enclosure to minimize...

Why are flywheels used as energy storage devices?

Prior Art The use of flywheels as energy storage devices is ancient art. The flywheel (FW) is an attractive means for storing energy for a number of reasons. In concept, it is a relatively simple device with which energy can be readily stored and extracted, either by mechanical means or by using electric motors and generators.

What is a flywheel rotor?

The flywheel rotor has a unique axial profile to both maximize the energy density of the flywheel, to maximize the volumetric efficiency of the entire system and to provide a circumferential ridge to add balance weights without the damaging procedure of grinding away fibers.

What is a flywheel assembly?

A flywheel assembly comprising: a cylindrical sleeve carried on said shaft, said sleeve closed at each of two opposing axial ends to define an enclosed volume; wherein said sleeve is deformed by expansion of said fluid within said enclosed volume to tightly engage said rotor.

Flywheel based energy storage system

A compact energy storage system includes a high speed rotating flywheel and an integral motor/generator unit. The rotating components are contained within a vacuum enclosure to minimize...

Regenerative drives and motors unlock the power of flywheel energy ...

S4 Energy, a Netherlands-based energy storage specialist, is using ABB regenerative drives and process performance motors to power its KINEXT energy-storage flywheels, developed to stabilize Europe''s electricity grids. In a 9-megawatt energy storage project, six flywheels have been installed in combination with a large battery to create an …

WO/2023/005950 FLYWHEEL ENERGY STORAGE SYSTEM

The flywheel energy storage system is connected to the power grid without needing to use a power electronic device, so that necessary voltage and frequency support …

US Patent Application for Flywheel Energy Storage Device Patent ...

An example flywheel energy storage device includes a fiber-resin composite shell having an elliptical ovoid shape. The example device also includes an axially oriented internal …

US20210270345A1

This application claims the priority filing benefit as a continuation of U.S. patent application Ser. No. 15/929,939 filed May 29, 2020 for "Catenary Flywheel Kinetic Battery" of James B. Clegern, which claims the priority filing benefit of U.S. Provisional Patent Application No. 62/857,088 filed Jun. 4, 2019 for "Catenary Flywheel Kinetic Battery" of James B. Clegern, each hereby ...

Flywheel Energy Storage System Patent Application

U.S. patent application number 17/242748 was filed with the patent office on 2021-12-02 for flywheel energy storage system. The applicant listed for this patent is KAZAK TECHNOLOGIES, INC.. Invention is credited to Michael McAleenan. Flywheel system properties are enhanced with rim designs that control stress at operational rotational velocities.

Flywheel energy system

This flexibly allows an energy storage system 20 having the same flywheel stored energy capacity (e.g. 20 kWH) to be utilized either for Long Duration, Low Power (e.g. Peak Shifting/Time of Use) or Short Duration, High Power (e.g. Voltage Support) applications with only quick and easy swapping out of a different motor/generator unit mounted ...

Tracking Patent Trends – A Window into the Future of the Energy Storage ...

On the agenda for COP29 is the Global Energy Storage and Grids Pledge – a pledge which targets a sixfold increase in global energy storage capacity to 1.5 TW by 2030. As reported by the Global Renewables Alliance, the pledge has gained traction, already winning support from multiple countries. This is just the start – the Long Duration Energy Storage Council envisages …

PATENT : First-of-its-kind Patent for Flywheel-based ...

The Kinetics Associated Mass Mechanical Applications (KAMMA) — heat, work and internal energy transfers from one object to another — are applied to KAMMA gear flywheel power generation method. The patent office said the date of filing of the patent (patent application number 201941039749 and patent number 382243) was October 1, 2019, and it ...

US20110061953A1

In operation, the flywheel energy storage system may store energy, providing it as necessary to the vehicle''s drivetrain under certain conditions, for example, under...

Rotor Design for High-Speed Flywheel Energy Storage Systems

Rotor Design for High-Speed Flyheel Energy Storage Systems 5 Fig. 4. Schematic showing power flow in FES system ri and ro and a height of h, a further expression for the kinetic energy stored in the rotor can be determined as Ekin = 1 4 ̺πh(r4 o −r 4 i)ω 2. (2) From the above equation it can be deduced that the kinetic energy of the rotor increases

Flywheel energy storage system

Flywheel energy storage (FES) system is a way of energy storage, mainly by accelerating the rotor (having a flywheel) to a very high speed, such that energy can be stored in the system as rotational kinetic energy. When the system needs to output energy, according to the principle of conservation of energy, the rotational speed of the flywheel ...

Flywheel energy storage—An upswing technology for energy …

The objective of this paper is to describe the key factors of flywheel energy storage technology, and summarize its applications including International Space Station (ISS), Low Earth Orbits (LEO), overall efficiency improvement and pulse power transfer for Hybrid Electric Vehicles (HEVs), Power Quality (PQ) events, and many stationary applications, which …

High-voltage flywheel energy storage system

A high-voltage flywheel energy storage system to prevent ionization, plasma formation, and electrical arc discharge and corresponding method are provided. The high-voltage flywheel energy storage system prevents ionization, plasma formation, and electrical arc discharge by isolating the motor windings and motor end windings from the partial vacuum …

US6995529B2

This invention relates to flywheel energy storage systems, to integration of advanced-technology fiber-reinforced composite thick-ring flywheels, low-cost continuous-filament unbonded steel...

US20110061953A1

US20110061953A1 US12/559,689 US55968909A US2011061953A1 US 20110061953 A1 US20110061953 A1 US 20110061953A1 US 55968909 A US55968909 A US 55968909A US 2011061953 A1 US2011061953 A1 US 2011061953A1 Authority US United States Prior art keywords gear energy storage storage system flywheel shaft Prior art date 2009-09-15 Legal …

US Patent Application for Flywheel Energy Storage Device Patent ...

An example flywheel energy storage device includes a fiber-resin composite shell having an elliptical ovoid shape. The example device also includes an axially oriented internal compressive support between the axial walls of the shell. The example device also includes an inner boss plate and an outer boss plate on each side of the shell. The ...

Flywheel energy system

This flexibly allows an energy storage system 20 having the same flywheel stored energy capacity (e.g. 20 kWH) to be utilized either for Long Duration, Low Power (e.g. Peak …

US20210270345A1

First, the flywheel energy storage capacity increases linearly with the increase in flywheel mass, resulting in practical operational limits for manufacturing, delivering and emplacing massive...

Patent for ''Kamma gear flywheel power generation''

The Kinetics Associated Mass Mechanical Applications (KAMMA) — heat, work and internal energy transfers from one object to another — are applied to KAMMA gear flywheel power generation method ...

Flywheel energy storage system for traction applications

This paper describes the application of UPT''s unique world leading high-speed flywheel energy storage technology to real-time power management and voltage suppo

Flywheel Energy Storage System Patent Application

U.S. patent application number 17/242748 was filed with the patent office on 2021-12-02 for flywheel energy storage system. The applicant listed for this patent is KAZAK …

Flywheel energy storage system

Flywheel energy storage (FES) system is a way of energy storage, mainly by accelerating the rotor (having a flywheel) to a very high speed, such that energy can be stored …

US6995529B2

A flywheel energy storage system ( 10 ) includes a vacuum enclosure ( 18 ) having a flywheel ( 12 ), motor/generator ( 14 ), and a shaft ( 16 ) enclosed within. The flywheel and motor/generator combination are designed to minimize bearing loads and thus increase system life, reliability and safety. US6995529B2 - Flywheel energy storage systems - Google Patents Flywheel energy …

WO/2023/005950 FLYWHEEL ENERGY STORAGE SYSTEM

The flywheel energy storage system is connected to the power grid without needing to use a power electronic device, so that necessary voltage and frequency support can be provided for the power grid, and the risk of large …

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