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公开(公告)号：US20230036843A1
公开(公告)日：2023-02-02
申请号：US17382578
申请日：2021-07-22
Applicant: ABB Schweiz AG
Inventor： Mohammad Razeghi-Jahromi , David Lee Coats , James D. Stoupis
Abstract: A method for recovering missing phase measurement unit (PMU) measurements from a plurality of PMUs is provided. The method comprises: receiving a plurality of obtained PMU measurements from the plurality of PMUs; populating a PMU dataset based on the plurality of obtained PMU measurements; determining a plurality of missing entries within the PMU dataset, wherein each of the plurality of missing entries indicates a missing PMU measurement within the PMU dataset at a particular time; determining a plurality of substitute entries for the plurality of missing entries based on an optimization algorithm that determines differences associated with a missing entry, of the plurality of missing entries, and a first set of PMU measurements, of the plurality of obtained PMU measurements, that are taken immediately prior to the missing entry; and inserting the plurality of substitute entries into the PMU dataset to generate a new PMU dataset.
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Patent Agency Ranking
公开(公告)号：US12184669B2
公开(公告)日：2024-12-31
申请号：US17393767
申请日：2021-08-04
Applicant: ABB Schweiz AG
Inventor： Mohammad Razeghi-Jahromi , David Lee Coats , James D. Stoupis
Abstract: A method for determining whether a power system is encountering a malicious attack is provided. The method comprises: receiving a plurality of first phasor measurement unit (PMU) measurements from a plurality of PMUs of the power system; determining a plurality of expected PMU measurements associated with a future time period based on an optimization algorithm that uses differences between a plurality of consecutive predictive entries and the plurality of first PMU measurements; receiving, from the plurality of PMUs, a plurality of second PMU measurements associated with the future time period; determining whether the power system is encountering the malicious attack based on comparing the plurality of expected PMU measurements with the plurality of second PMU measurements; and executing an action based on whether the power system is encountering the malicious attack.
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公开(公告)号：US12111821B2
公开(公告)日：2024-10-08
申请号：US17382578
申请日：2021-07-22
Applicant: ABB Schweiz AG
Inventor： Mohammad Razeghi-Jahromi , David Lee Coats , James D. Stoupis
CPC classification number: G06F16/2379 , G01R25/00
Abstract: A method for recovering missing phase measurement unit (PMU) measurements from a plurality of PMUs is provided. The method comprises: receiving a plurality of obtained PMU measurements from the plurality of PMUs; populating a PMU dataset based on the plurality of obtained PMU measurements; determining a plurality of missing entries within the PMU dataset, wherein each of the plurality of missing entries indicates a missing PMU measurement within the PMU dataset at a particular time; determining a plurality of substitute entries for the plurality of missing entries based on an optimization algorithm that determines differences associated with a missing entry, of the plurality of missing entries, and a first set of PMU measurements, of the plurality of obtained PMU measurements, that are taken immediately prior to the missing entry; and inserting the plurality of substitute entries into the PMU dataset to generate a new PMU dataset.
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公开(公告)号：US20240291859A1
公开(公告)日：2024-08-29
申请号：US18176087
申请日：2023-02-28
Applicant: ABB Schweiz AG
Inventor： Harish Suryanarayana , David Lee Coats
CPC classification number: H04L63/1466 , B60L53/62
Abstract: In one aspect, a controller for detecting erroneous data generated at an electric vehicle charging station (EVCS) is provided. The EVCS includes a plurality of electric vehicle supply equipment (EVSE) for charging electric vehicles. The controller is configured to store a plurality of data models that predict a current at a point of common coupling (PCC) drawn by the EVCS from a utility, where each of the plurality of data models ignores measurements from a different one of the plurality of EVSEs, generate a plurality of predicted current values, each generated using a different one of plurality of data models, measure an actual current value at the PCC, calculate a plurality of difference values, each comprising a difference between one of the predicted current values and the actual current value, and determine whether the erroneous data is being generated based on the plurality of difference values.
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公开(公告)号：US20240127369A1
公开(公告)日：2024-04-18
申请号：US17965208
申请日：2022-10-13
Applicant: ABB Schweiz AG
Inventor： Zhenyuan Wang , Alexander Brissette , Yuzhi Zhang , David Lee Coats , Himani Ravindra Pathak
CPC classification number: G06Q50/06 , G06Q30/0204 , G06Q30/0206 , B60L53/60
Abstract: A method for determining a charging price for an electric charging site includes receiving time tags and data obtained based on automated metering infrastructure (AMI) data for the electric charging site, and weather information for a service area of the electric charging site; clustering power consumption of the electric charging site with similar weather information and time tags; calculating a center of mass and a distribution confidence parameter for the clustered power consumption to obtain a look-up table; retrieving historical information of voltage VPCC and injection power Psite pairs that is measured at a point of common coupling (PCC) of the electric charging site; receiving weather forecast information for the service area of the electric charging site; and calculating a dynamic hosting capacity (DHC) curve and a price curve based on the center of mass and the distribution confidence parameter, the VPCC and Psite pairs, and the weather forecast information.
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公开(公告)号：US20230050490A1
公开(公告)日：2023-02-16
申请号：US17393767
申请日：2021-08-04
Applicant: ABB Schweiz AG
Inventor： Mohammad Razeghi-Jahromi , David Lee Coats , James D. Stoupis
Abstract: A method for determining whether a power system is encountering a malicious attack is provided. The method comprises: receiving a plurality of first phasor measurement unit (PMU) measurements from a plurality of PMUs of the power system; determining a plurality of expected PMU measurements associated with a future time period based on an optimization algorithm that uses differences between a plurality of consecutive predictive entries and the plurality of first PMU measurements; receiving, from the plurality of PMUs, a plurality of second PMU measurements associated with the future time period; determining whether the power system is encountering the malicious attack based on comparing the plurality of expected PMU measurements with the plurality of second PMU measurements; and executing an action based on whether the power system is encountering the malicious attack.
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