Flywheel energy storage system using SMB and PMB
Kyushu Institute of Technology, Kitakyūshū, Fukuoka, JapanIEEE Transactions on Applied Superconductivity (Impact Factor: 1.24). 07/2007; 17(2):2146 - 2149. DOI: 10.1109/TASC.2007.898894
Source: IEEE Xplore
A new energy storage flywheel system using a superconducting magnetic bearing (SMB) and a permanent magnet bearing (PMB) is proposed. The superconducting magnetic bearing (SMB) suppresses the vibrations of the flywheel rotor. The permanent magnet bearing (PMB) passively controls the rotor position. The energy storage flywheel system is characterized by using the two different type magnetic bearings of permanent magnet bearing (PMB) and superconducting magnetic bearing (SMB). Dynamics of the new energy storage flywheel system are discussed in this paper.
Conference Paper: Energy Storage Systems The Flywheel Energy Storage[Show abstract] [Hide abstract]
ABSTRACT: Storage of energy is one of the main problem of contemporary technology. Currently used manners of the energy store are listed below: (1) the magnetic accumulator - the energy is kept in the magnetic field of superconductive inductor, (2) the accumulator with super capacitors. The low voltage (1,6-2,5 V) is the fault of this one,(3) the accumulator with lead-acid or alkaline accumulator. The fault of this solution is very low charging and discharging efficiency, (4) the electromechanical accumulator. Flywheels store energy mechanically in the form of kinetic energy. In this article the flywheel energy storage will be described precisely and compared with other energy storage technologies.Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 13th; 10/2008
Conference Paper: Core Loss Prediction and Measurement in Magnetic Bearing[Show abstract] [Hide abstract]
ABSTRACT: This paper presents core loss prediction and measurement in active radial magnetic bearings found in flywheel systems. The methods and test results of two core loss measurement test benches (Clarkson test bench and commercial Donart test bench) are analyzed and compared when the materials are excited with sinusoidal flux density waveforms. The unique flux density waveforms found in magnetic bearing are analyzed and the relative core losses are predicted. Non-sinusoidal flux density waveforms are obtained in different sections of the active radial magnetic bearing. These waveforms are excited into the flexible Clarkson test bench and the core losses are measured. The measured core loss results are analyzed and compared with estimated losses and also losses obtained under sinusoidal waveforms.Electric Machines and Drives Conference, 2009. IEMDC '09. IEEE International; 06/2009
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ABSTRACT: Our group has developed a new energy storage flywheel system using a superconducting magnetic bearing (SMB) and a permanent magnet bearing (PMB). The superconducting magnetic bearing (SMB) suppresses the vibrations of the flywheel rotor. The permanent magnet bearing (PMB) passively controls the rotor position. The energy storage flywheel system is characterized by using the two different type magnetic bearings of PMB and SMB. Dynamics and charge-discharge characteristics are improved and discussed in this paper.IEEE Transactions on Applied Superconductivity 07/2009; 19(3-19):2091 - 2094. DOI:10.1109/TASC.2009.2019533 · 1.24 Impact Factor
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