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公开(公告)号：US10199915B2
公开(公告)日：2019-02-05
申请号：US15229787
申请日：2016-08-05
Applicant: ABB Schweiz AG
Inventor： Helfried Peyrl , Silvia Mastellone
IPC: H02M1/08 , H02M7/5387 , G05B13/04 , H02M7/483
Abstract: A method for controlling a modular multi-level converter comprises the steps of: collecting control input variables from the converter; transmitting the control input variables to a controller of the converter via a first communication medium; determining, in the controller, and actual state of the converter and at least one control output variable based on a model of the converter; and transmitting the control output variable to the converter for controlling the converter via a second communication medium. The model of the converter accounts for the first and/or the second communication medium.
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公开(公告)号：US20190049497A1
公开(公告)日：2019-02-14
申请号：US16155161
申请日：2018-10-09
Applicant: ABB Schweiz AG
Inventor： Silvia Mastellone , Peter Al-Hokayem , Pietro Raboni
IPC: G01R27/16 , H02J3/38 , G06F17/50 , G01R19/165 , G01R31/42
Abstract: A method for islanding detection in an electrical power grid supplied by an electrical power source. The method includes measuring an output voltage (Vpcc) and a grid current (Ig) at an interconnection point of the power source with the power grid; estimating at least one grid parameter from the output voltage (Vpcc) and the grid current (Ig) based on optimizing a cost function, which minimizes a difference between the measured output voltage (Vpcc) and an estimated output voltage or a difference between the measured grid current (Ig) and an estimated grid current, which estimated output voltage or estimated output current is a function of the measured grid current (Ig) or the measured output voltage (Vpcc) and the least one estimated grid parameter; and detecting an islanding condition by detecting a jump and/or a deviation in the at least one estimated grid parameter.
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公开(公告)号：US20180073486A1
公开(公告)日：2018-03-15
申请号：US15816729
申请日：2017-11-17
Applicant: ABB Schweiz AG
Inventor： Yan Zhang , Jan Poland , Adrian Vasile Timbus , Carsten Franke , Kedar Kulkarni , Silvia Mastellone
CPC classification number: F03D7/048 , F03D7/0284 , F03D9/257 , F05B2260/8211 , F05B2270/107 , F05B2270/20 , F05B2270/304 , F05B2270/328 , F05B2270/329 , F05B2270/335 , F05B2270/337 , H02P9/04 , Y02E10/723 , Y02E10/725
Abstract: The present invention is concerned with an operation of a wind farm with a plurality of wind turbines in view of a dynamic frequency response. According to the invention, dynamic frequency support and power production for all wind turbines in a wind farm are handled concurrently in a single optimization step and taking into account wake effects within the wind farm as well as optional wind forecast information. The dynamic frequency support capability of the entire wind farm is planned in advance according to grid requirements and power system condition changes. While existing methods de-load wind turbines with a static percentage in order to supply additional power when needed, the proposed method incorporates the dynamic frequency support into the optimal operation system of wind farm.
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公开(公告)号：US10605229B2
公开(公告)日：2020-03-31
申请号：US15816729
申请日：2017-11-17
Applicant: ABB Schweiz AG
Inventor： Yan Zhang , Jan Poland , Adrian Vasile Timbus , Carsten Franke , Kedar Kulkarni , Silvia Mastellone
Abstract: The present invention is concerned with an operation of a wind farm with a plurality of wind turbines in view of a dynamic frequency response. According to the invention, dynamic frequency support and power production for all wind turbines in a wind farm are handled concurrently in a single optimization step and taking into account wake effects within the wind farm as well as optional wind forecast information. The dynamic frequency support capability of the entire wind farm is planned in advance according to grid requirements and power system condition changes. While existing methods de-load wind turbines with a static percentage in order to supply additional power when needed, the proposed method incorporates the dynamic frequency support into the optimal operation system of wind farm.
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公开(公告)号：US20190190272A1
公开(公告)日：2019-06-20
申请号：US16273573
申请日：2019-02-12
Applicant: ABB Schweiz AG
Inventor： Ki-Bum Park , Thiago Batista Soeiro , Mario Schweizer , Silvia Mastellone
CPC classification number: H02J3/383 , H02M3/33523 , H02S40/32 , Y02E10/563
Abstract: An inverter system for a photovoltaic panel includes: an inverter adapted for transforming a DC voltage from the photovoltaic panel into an AC voltage to be supplied to an electrical grid; a DC link interconnected with the inverter and providing a positive DC link output connectable to a positive pole of the photovoltaic panel and a negative DC link output connectable to a negative pole of the photovoltaic panel; a switch for disconnecting the negative pole of the photovoltaic panel from the DC link; and a controller for controlling the inverter and the switch; wherein the controller is adapted for opening the switch, such that the photovoltaic panel is solely supplyable by the positive DC link output.
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Patent Agency Ranking
公开(公告)号：US10116234B2
公开(公告)日：2018-10-30
申请号：US15386511
申请日：2016-12-21
Applicant: ABB Schweiz AG
Inventor： Pietro Raboni , David Martini , Silvia Mastellone , Stefan Almer
IPC: H02M7/44 , H02M1/14 , H02M1/32 , H02J3/38 , H02M7/5387
Abstract: A DC/AC converter is provided with a new control device and method for managing inrush current transients during operation without requiring additional external devices or emergency operating modes forcing the DC/AC converter to shut down. The present invention is particularly, but not exclusively, aimed at grid connected DC/AC, converters, often subject to inrush current phenomena due to perturbations in the grid.
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公开(公告)号：US20170187303A1
公开(公告)日：2017-06-29
申请号：US15386511
申请日：2016-12-21
Applicant: ABB Schweiz AG
Inventor： Pietro Raboni , David Martini , Silvia Mastellone , Stefan Almer
CPC classification number: H02M7/44 , H02J3/383 , H02J3/385 , H02M1/14 , H02M1/32 , H02M7/5387 , Y02E10/563 , Y02E10/58
Abstract: DC/AC converter comprising a new control device and method for managing inrush current transients during operation without requiring additional external devices or emergency operating modes forcing the DC/AC converter to shut down. The present invention is particularly, but not exclusively, aimed at grid connected DC/AC, converters, often subject to inrush current phenomena due to perturbations in the grid.
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公开(公告)号：US10852336B2
公开(公告)日：2020-12-01
申请号：US16155161
申请日：2018-10-09
Applicant: ABB Schweiz AG
Inventor： Silvia Mastellone , Peter Al-Hokayem , Pietro Raboni
IPC: G01R27/16 , G06F30/20 , H02J3/38 , G01R19/165 , G01R31/42
Abstract: A method for islanding detection in an electrical power grid supplied by an electrical power source. The method includes measuring an output voltage (Vpcc) and a grid current (Ig) at an interconnection point of the power source with the power grid; estimating at least one grid parameter from the output voltage (Vpcc) and the grid current (Ig) based on optimizing a cost function, which minimizes a difference between the measured output voltage (Vpcc) and an estimated output voltage or a difference between the measured grid current (Ig) and an estimated grid current, which estimated output voltage or estimated output current is a function of the measured grid current (Ig) or the measured output voltage (Vpcc) and the least one estimated grid parameter; and detecting an islanding condition by detecting a jump and/or a deviation in the at least one estimated grid parameter.
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公开(公告)号：US20170284368A1
公开(公告)日：2017-10-05
申请号：US15631783
申请日：2017-06-23
Applicant: ABB Schweiz AG
Inventor： Carsten Franke , Kedar Kulkarni , Adrian Timbus , Jan Poland , Silvia Mastellone , Yan Zhang
CPC classification number: F03D7/0292 , F03D7/02 , F03D7/0204 , F03D7/04 , F03D7/048 , Y02E10/723
Abstract: The present invention relates to a method of operating a wind farm comprising an upstream and a downstream turbine, wherein the upstream turbine is operated with current operation parameters under current wind conditions, wherein the method comprises the steps of: receiving future wind conditions for a time period for the wind farm, and evaluating required operation parameters for minimising wake effect of the downstream turbine under the future wind conditions, and determining a cost coefficient for changing the operation parameters to required operation parameters under consideration of fatigue effect of the wind turbine, calculating power productions Po and Pc, in the predetermined time period, by the wind farm if operated with the current operation parameters under the current wind conditions and if operated with the required operation parameters under the future wind conditions, respectively, and operating the upstream turbine with the required operation parameters if the cost coefficient is lower than a cost that would be obtained by a power production increment Pc-Po.
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公开(公告)号：US20160344277A1
公开(公告)日：2016-11-24
申请号：US15229787
申请日：2016-08-05
Applicant: ABB Schweiz AG
Inventor： Helfried Peyrl , Silvia Mastellone
CPC classification number: H02M1/08 , G05B13/048 , H02M7/53873 , H02M2007/4835
Abstract: A method for controlling a modular multi-level converter comprises the steps of: collecting control input variables from the converter; transmitting the control input variables to a controller of the converter via a first communication medium; determining, in the controller, and actual state of the converter and at least one control output variable based on a model of the converter; and transmitting the control output variable to the converter for controlling the converter via a second communication medium. The model of the converter accounts for the first and/or the second communication medium.
Abstract translation: 一种用于控制模块化多电平转换器的方法包括以下步骤：从转换器收集控制输入变量; 经由第一通信介质将所述控制输入变量发送到所述转换器的控制器; 在所述控制器中确定所述转换器的实际状态和基于所述转换器的模型的至少一个控制输出变量; 以及将所述控制输出变量发送到所述转换器，用于经由第二通信介质控制所述转换器。 转换器的型号考虑了第一和/或第二通信介质。
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