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Patent Agency Ranking
公开(公告)号：US10230239B2
公开(公告)日：2019-03-12
申请号：US15346880
申请日：2016-11-09
Applicant: ABB Schweiz AG
Inventor： Xiaoming Feng , Ning Kang
Abstract: Apparatuses, method and systems featuring model predictive voltage and VAR controls with coordination with and optional optimization of autonomous reactive power control such as autonomous distributed energy resource and/or autonomous switched capacitor banks One embodiment includes an electronic control system structured to construct a linearized model of the power distribution system including a plurality of predetermined nodes, operate a model predictive controller to identify optimized control commands using an objective function defined over a plurality of future scenarios over a look ahead time horizon and a plurality of constraints, and transmit the identified control commands to control operation of at least the voltage regulators and the switched capacitor banks.
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公开(公告)号：US20170030958A1
公开(公告)日：2017-02-02
申请号：US15294238
申请日：2016-10-14
Applicant: ABB Schweiz AG
Inventor： Ziang Zhang , Ning Kang , Mirrasoul Mousavi
CPC classification number: G01R31/027 , G01R31/06 , H02H7/045
Abstract: According to an embodiment of a power network device, the device includes a computer configured to estimate a plurality of parameters internal to a transformer, including estimating a turns ratio of the transformer. The computer performs the parameter estimation based on an equivalent circuit model of the transformer and current and voltage samples which correspond to current and voltage measurements taken at primary side and secondary side terminals of the transformer. The computer indicates when one or more of the estimated parameters deviates from a nominal value by more than a predetermined amount. The computer can be part of an intelligent electronic device configured to acquire analog or digital signals representing the primary side and secondary side current and voltage measurements, or located remotely from the intelligent electronic device e.g. in the control room or substation controller.
Abstract translation: 根据电力网络设备的实施例，该设备包括被配置为估计变压器内部的多个参数的计算机，包括估计变压器的匝数比。 计算机基于变压器的等效电路模型和电流和电压采样进行参数估计，这些样本对应于在变压器的初级侧和次级侧端子进行的电流和电压测量。 计算机指示估计参数中的一个或多个偏离标称值大于预定量的时间。 计算机可以是智能电子设备的一部分，其被配置为获取表示初级侧和次级侧电流和电压测量的或者位于远离智能电子设备的模拟或数字信号，例如。 在控制室或变电站控制器。
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公开(公告)号：US10436831B2
公开(公告)日：2019-10-08
申请号：US14789042
申请日：2015-07-01
Applicant: ABB Schweiz AG
Inventor： Ning Kang , Gergely Gombos , Mirrasoul J. Mousavi
Abstract: A highly accurate fault location method for series-compensated double-circuit transmission lines having series compensation devices and metal oxide varistors (SC&MOV) at first and second terminal ends is provided. Synchronized or unsynchronized current phasors and local voltage phasors are used as input to the fault location method. The voltages and currents at the fault point are formulated as a function of the unknown fault location. Boundary conditions for the particular IED-determined fault type are used to derive the fault location formulas.
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公开(公告)号：US20180321650A1
公开(公告)日：2018-11-08
申请号：US15971655
申请日：2018-05-04
Applicant: ABB Schweiz AG
Inventor： Xiaoming Feng , Ning Kang
IPC: G05B19/042 , H04Q9/02
CPC classification number: G05B19/042 , G05B2219/2639 , H02J3/16 , H02J3/381 , H02J13/0006 , H04Q9/02 , H04Q2209/60 , H04Q2213/13544 , Y02E40/34 , Y02E40/72 , Y02E40/76 , Y02E60/726 , Y02E60/74 , Y04S10/12 , Y04S10/24 , Y04S10/30 , Y04S10/545
Abstract: The present application relates generally to Volt-VAR optimization for power distribution systems having advanced metering infrastructure (AMI). Distributed energy resources (DER) such as photovoltaic arrays are becoming prevalent in distribution systems. These DER systems inject power into the distribution system which can cause unfavorable changes, such as a rise in voltage across the feeder lines of the distribution system. Existing control proposals stiffer from a number of shortcomings, drawbacks and disadvantages. In some instances, traditional controllers for distribution systems with DER systems may require information related to the arrangement of the distribution system which is unknown and cannot be provided by the advanced metering infrastructure. There remains a significant need for the apparatuses, methods, systems and techniques disclosed herein.
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公开(公告)号：US20170133849A1
公开(公告)日：2017-05-11
申请号：US15346880
申请日：2016-11-09
Applicant: ABB Schweiz AG
Inventor： Xiaoming Feng , Ning Kang
CPC classification number: H02J3/16 , H02J3/1821 , H02J3/381 , H02J13/0079 , H02J2003/003 , H02J2003/007 , Y02E40/30 , Y02E60/76 , Y04S40/22
Abstract: Apparatuses, method and systems featuring model predictive voltage and VAR controls with coordination with and optional optimization of autonomous reactive power control such as autonomous distributed energy resource and/or autonomous switched capacitor banks One embodiment includes an electronic control system structured to construct a linearized model of the power distribution system including a plurality of predetermined nodes, operate a model predictive controller to identify optimized control commands using an objective function defined over a plurality of future scenarios over a look ahead time horizon and a plurality of constraints, and transmit the identified control commands to control operation of at least the voltage regulators and the switched capacitor banks.
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