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    MICROSECOND TIME-RESOLVED MASS SPECTROMETRY
    3.
    发明申请
    MICROSECOND TIME-RESOLVED MASS SPECTROMETRY 审中-公开
    MICROSECOND时间分辨质谱仪

    公开(公告)号：US20140147921A1

    公开(公告)日：2014-05-29

    申请号：US13697621

    申请日：2011-05-17

    申请人： Hao Chen ,  Zhixin Miao

    发明人： Hao Chen ,  Zhixin Miao

    IPC分类号： G01N27/68 ,  G01N33/487

    CPC分类号： G01N27/68 ,  G01N1/00 ,  G01N33/48707 ,  G01N33/6848 ,  H01J49/0445 ,  H01J49/045 ,  H01J49/145 ,  H01J49/165

    摘要： A microsecond time-resolved mass spectrometry device and method of using desorption electrospray ionization (10) was described for the kinetic study of fast reactions. The device includes a liquid jet generator (64) that is configured to emit a continuous liquid jet (50) having a length. An ambient ionization source (10) is directed toward a selected variable location along the continuous liquid jet (50) to desorb at least a portion of the continuous liquid jet (50). A mass analyzer (30) analyzes a mass-to-charge ratio of an ionized sample that is within the desorbed portion of the continuous liquid jet (50). The acquired mass spectra reflect the reaction progress in different reaction times and, therefore, may be used to derive the reaction rate.

    摘要翻译： 描述了用于快速反应的动力学研究的微秒时间分辨质谱装置和使用解吸电喷雾电离的方法（10）。 该装置包括液体喷射发生器（64），其构造成发射具有长度的连续液体射流（50）。 环境电离源（10）沿着连续液体射流（50）指向选定的可变位置以解吸至少一部分连续液体射流（50）。 质量分析器（30）分析在连续液体射流（50）的解吸附部分内的电离样品的质荷比。 所获得的质谱反映了不同反应时间的反应进程，因此可用于得到反应速率。

    METHOD AND APPARATUS OF LIQUID SAMPLE-DESORPTION ELECTROSPRAY IONIZATION-MASS SPECROMETRY (LS-DESI-MS)
    4.
    发明申请
    METHOD AND APPARATUS OF LIQUID SAMPLE-DESORPTION ELECTROSPRAY IONIZATION-MASS SPECROMETRY (LS-DESI-MS) 有权
    液体样品离子电沉积 - 质谱（LS-DESI-MS）的方法和装置

    公开(公告)号：US20100059674A1

    公开(公告)日：2010-03-11

    申请号：US12205236

    申请日：2008-09-05

    申请人： Hao Chen ,  Zhixin Miao

    发明人： Hao Chen ,  Zhixin Miao

    IPC分类号： B01D59/44

    CPC分类号： H01J49/145 ,  H01J49/045

    摘要： An apparatus and method for direct analysis of continuous-flow liquid samples by desorption electrospray ionization-mass spectrometry (DESI-MS) including a sample stage that is adapted to receive a liquid sample and a nebulizing ionizer that is configured to generate a charged, nebulized solvent and thereby desorb at least a portion of the liquid sample from the sample stage.

    摘要翻译： 一种用于通过解吸电喷雾电离质谱（DESI-MS）直接分析连续流动液体样品的装置和方法，包括适于接收液体样品的样品台和被配置为产生带电雾化的雾化离子发生器 从而从样品台解吸至少一部分液体样品。

    Method and apparatus of liquid sample-desorption electrospray ionization-mass specrometry (LS-DESI-MS)
    5.
    发明授权
    Method and apparatus of liquid sample-desorption electrospray ionization-mass specrometry (LS-DESI-MS) 有权
    液体样品 - 解吸电喷雾电离质谱法（LS-DESI-MS）的方法和装置

    公开(公告)号：US07915579B2

    公开(公告)日：2011-03-29

    申请号：US12205236

    申请日：2008-09-05

    申请人： Hao Chen ,  Zhixin Miao

    发明人： Hao Chen ,  Zhixin Miao

    IPC分类号： H01J27/00 ,  H01J49/10

    CPC分类号： H01J49/145 ,  H01J49/045

    摘要： An apparatus and method for direct analysis of continuous-flow liquid samples by desorption electrospray ionization-mass spectrometry (DESI-MS) including a sample stage that is adapted to receive a liquid sample and a nebulizing ionizer that is configured to generate a charged, nebulized solvent and thereby desorb at least a portion of the liquid sample from the sample stage.

    摘要翻译： 一种用于通过解吸电喷雾电离质谱（DESI-MS）直接分析连续流动液体样品的装置和方法，包括适于接收液体样品的样品台和被配置为产生带电雾化的雾化离子发生器 从而从样品台解吸至少一部分液体样品。

    Power system stabilizer for voltage source converters
    6.
    发明授权
    Power system stabilizer for voltage source converters 有权

    公开(公告)号：US10536003B1

    公开(公告)日：2020-01-14

    申请号：US16261870

    申请日：2019-01-30

    申请人： Lingling Fan ,  Zhixin Miao

    发明人： Lingling Fan ,  Zhixin Miao

    IPC分类号： H02J3/38 ,  H02P21/22 ,  F03D9/25 ,  F03D7/00

    摘要： Devices and methods for mechanism-based feedback controller employed in a wind powered power system are provided. A controller can include a vector control-based voltage source converter with feedback control circuitry. The feedback control circuitry is configured to modulate either a power order or a dc-link voltage order to control coupling between voltage and power. The controller can be connected to a wind-based turbine generator of a wind farm and regulate power deployed to a power grid.

    Coupling dynamics for power systems with iterative discrete decision making architectures
    7.
    发明授权
    Coupling dynamics for power systems with iterative discrete decision making architectures 有权

    公开(公告)号：US09893529B1

    公开(公告)日：2018-02-13

    申请号：US15196961

    申请日：2016-06-29

    申请人： Zhixin Miao

    发明人： Zhixin Miao

    IPC分类号： H02J3/38

    CPC分类号： H02J3/381 ,  G06Q10/00 ,  G06Q50/06 ,  H02J3/008 ,  H02J3/06 ,  H02J3/24 ,  H02J2003/007

    摘要： Various examples are provided that are related to coupling dynamics for, e.g., power systems with iterative discrete decision making architectures. In one example, a method includes determining an output power adjustment using a frequency difference associated with a generator of a first area of a power system and price signals corresponding to power generation in the first area and in a second area coupled to the first area by a tie-line; and providing a power command based upon the output power adjustment to a control system of the generator. In another example, a power system control system includes first and second agents configured to control power generation of a first area and a second area of a power system, respectively. The second agent can control power generation of the second area using frequency differences of generators in the second area and price signals of the first and second areas.

    Dynamic parameter estimation of generators
    9.
    发明授权
    Dynamic parameter estimation of generators 有权

    公开(公告)号：US10884060B1

    公开(公告)日：2021-01-05

    申请号：US16227730

    申请日：2018-12-20

    申请人： Zhixin Miao ,  Lingling Fan

    发明人： Zhixin Miao ,  Lingling Fan

    IPC分类号： G01R31/34

    摘要： Various examples are provided extended Kalman filtering estimators for generators. In one example, among others an extended Kalman filtering estimator includes a dynamics estimator configured to calculate an estimated variable such as an estimated dynamic state or an estimated parameter of a generator, a geometry estimator configured to estimate generator values, and a Kalman filter component configured to determine a correction to the estimated state variable.

    Simultaneous economic dispatch and frequency regulation of power systems
    10.
    发明授权
    Simultaneous economic dispatch and frequency regulation of power systems 有权

    公开(公告)号：US09742411B1

    公开(公告)日：2017-08-22

    申请号：US14873501

    申请日：2015-10-02

    申请人： Lingling Fan ,  Zhixin Miao

    发明人： Lingling Fan ,  Zhixin Miao

    IPC分类号： G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  H03L5/02 ,  G05B11/01

    CPC分类号： H03L5/02 ,  G05B11/01 ,  G05F1/66

    摘要： Various examples are provided for feedback control of power systems. The feedback control can provide simultaneous frequency regulation and economic operation of a power system. In one example, a method includes obtaining a frequency difference associated with a generator of a power system; determining an output power adjustment based at least in part upon the frequency difference and a cost function associated with the generator; and providing a power command to a secondary frequency control of the generator, the power command based upon the output power adjustment. In another example, a generator control system includes a primary frequency controller configured to control frequency droop of a generator of a power system; and a secondary frequency controller configured to adjust output power of the generator based at least in part upon a frequency difference associated with the generator and a cost function associated with the generator.