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    PARAMETER ESTIMATION AND CONTROL METHOD AND APPARATUS
    43.
    发明申请
    PARAMETER ESTIMATION AND CONTROL METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20180017604A1

    公开(公告)日：2018-01-18

    申请号：US15549617

    申请日：2016-02-12

    Applicant: THE UNIVERSITY OF SHEFFIELD

    Inventor： Edward John DAW ,  Tega Boro EDO

    IPC: G01R23/167 ,  G01R31/34 ,  G06F17/14

    CPC classification number: G01R23/167 ,  G01R31/343 ,  G06F17/141

    Abstract: A method for recursively estimating at least one parameter of a first oscillating component represented by one or more sampled noisy input signal waveforms, the method comprising, recursively generating from the one or more sampled noisy input signals an estimate of a Z-transform component corresponding to the first oscillating component, forming, from the estimated Z-transform component, one or more signals providing an indication of one or more of a frequency and an amplitude of the Z-transform component; and estimating, from the one or more signals, one or more of a frequency, a relative phase and an amplitude parameter of the first oscillating component.

    ELECTRIC MACHINES
    46.
    发明申请
    ELECTRIC MACHINES 审中-公开
    电机

    公开(公告)号：US20150311758A1

    公开(公告)日：2015-10-29

    申请号：US14648602

    申请日：2013-11-29

    Applicant: THE UNIVERSITY OF SHEFFIELD

    Inventor： Jiabin WANG

    IPC: H02K3/28 ,  H02K1/00

    CPC classification number: H02K3/28 ,  H02K1/00 ,  H02K21/14

    Abstract: An electric machine comprising: a) a first means for providing a first magneto motive force comprising a first set of magneto motive force space harmonics comprising odd and even harmonic subsets, each harmonic in said first set of magneto motive force space harmonics having a respective amplitude, wherein one of said odd or even subsets of said first set of magneto motive force space harmonics comprises a dominant working harmonic and the other of said odd or even subsets of said first set of magneto motive force space harmonics comprises a dominant undesirable harmonic; and b) a second means for providing a second magneto motive force comprising a second set of magneto motive force space harmonics comprising odd and even harmonic subsets, each harmonic of said second set of magneto motive force space harmonics having a respective amplitude, wherein one of said odd or even subset of said second set of magneto motive force space harmonics comprises a dominant working harmonic and the other of said odd or even subset of said second set of magneto motive force space harmonics comprises a dominant undesirable harmonic; wherein the net effect of said first and second means provides a resultant magneto motive force comprising a resultant set of magneto motive force space harmonics comprising odd and even harmonic subsets, each harmonic of said resultant set of magneto motive force space harmonics having a respective amplitude, wherein one of said odd or even subsets of said resultant set of magneto motive force space harmonics comprises a dominant working harmonic and the other of said odd or even subsets of said resultant set of magneto motive force space harmonics comprises a dominant undesirable harmonic, wherein the amplitude of the dominant undesirable harmonic of the resultant set of magneto motive force space harmonics is at least reduced relative to the amplitudes of the dominant undesirable harmonics of the first and second sets of harmonics.

    Abstract translation: 一种电机，包括：a）第一装置，用于提供包括第一组磁动力空间谐波的第一磁动力，所述第一组磁动力空间谐波包括奇数和偶次谐波子集，所述第一组磁动势空间谐波中的每个谐波具有相应的振幅 ，其中所述第一组磁动势空间谐波组的所述奇数或偶数子集中的一个包括主要工作谐波，并且所述第一组磁动势空间谐波的所述奇数或偶数子集中的另一个包括主要不需要的谐波; 以及b）用于提供第二磁动力的第二装置，所述第二磁动力包括包括奇数和偶次谐波子集的第二组磁动力空间谐波，所述第二组磁动力空间谐波的谐波具有相应的幅度，其中， 所述第二组磁动力空间谐波的奇数或偶数子集包括主要工作谐波，并且所述第二组磁动势空间谐波的所述奇数或偶数子集中的另一组包括主要不需要的谐波; 其特征在于，所述第一和第二装置的净效应提供了包括由奇数和偶数谐波子集组成的磁动力空间谐波的合成组合的合成磁动力，所述结合的磁动势空间谐波组的谐波具有相应的振幅， 其中所述一组磁动势空间谐波的所述奇数或偶数子集中的一个包括主要工作谐波，并且所述结合的磁动势空间谐波组的所述奇数或偶数子集中的另一个包括主要不需要的谐波，其中 所得到的磁动力空间谐波组的主要不需要谐波的振幅至少相对于第一和第二组谐波的主要不利谐波的振幅减小。

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