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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
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.
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2.发明授权公开(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
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.
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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。
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公开(公告)号：US20200028366A1
公开(公告)日：2020-01-23
申请号：US16261870
申请日：2019-01-30
申请人： LINGLING FAN , ZHIXIN MIAO
发明人： LINGLING FAN , ZHIXIN MIAO
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.
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公开(公告)号：US10437214B1
公开(公告)日：2019-10-08
申请号：US15369146
申请日：2016-12-05
申请人： Lingling Fan , Zhixin Miao
发明人： Lingling Fan , Zhixin Miao
IPC分类号： G05B19/042
摘要： Disclosed are various embodiments that relate to multi-agent decision system based at least in part on a dual's dual problem formulation. The embodiments limited the amount of information exchanged among autonomous entities. The embodiments can incorporate existing AC optimal power flow (OPF) software systems. In one embodiments, a subgradient-based iterative method is used.
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公开(公告)号：US08330119B2
公开(公告)日：2012-12-11
申请号：US12558819
申请日：2009-09-14
申请人： Hao Chen , Jiwen Li , Zhixin Miao , Yun Zhang
发明人： Hao Chen , Jiwen Li , Zhixin Miao , Yun Zhang
IPC分类号： H01J49/26
CPC分类号： H01J49/0431
摘要： An apparatus for direct analysis of the redox products, or intermediates, of an electrochemical reaction by coupling an electrochemical cell to desorption electrospray ionization mass spectrometry.
摘要翻译： 用于通过将电化学电池耦合到解吸电喷雾离子化质谱法直接分析电化学反应的氧化还原产物或中间体的装置。
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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.
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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
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.
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9.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。
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公开(公告)号：US10234508B1
公开(公告)日：2019-03-19
申请号：US13968693
申请日：2013-08-16
申请人： Zhixin Miao , Lingling Fan
发明人： Zhixin Miao , Lingling Fan
摘要： Various examples are provided for parameter estimation of generators. In one example, among others, a method includes collecting data corresponding to a generator using a phasor management unit (PMU) and estimating dynamic parameters of the generator using extended Kalman filtering (EKF) and the collected PMU data. In another example, a system includes at least one application executable in a processing device that obtains operational data corresponding to a generator and estimates a dynamic parameter of the generator using EKF and the operational data. In another example, an EKF estimator includes a dynamics estimator configured to estimate a state variable of a generator, a geometry estimator configured to estimate phasor values associated with the generator, and a Kalman filter gain configured to determine a correction to the state variable.
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