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公开(公告)号：US20170279365A1
公开(公告)日：2017-09-28
申请号：US15618475
申请日：2017-06-09
Applicant: ABB Schweiz AG
Inventor： Thomas Besselmann , Stefan Almer , Jan Wiik , Sture Van de Moortel
CPC classification number: H02M5/451 , H02H7/1216 , H02M5/4505 , H02M2001/0003 , H02M2001/325
Abstract: A load commutated converter interconnects an AC power grid with an AC load and comprises a grid-side converter, a DC link and a load-side converter. A method for controlling the load commutated converter comprises: determining a gridside firing angle for the grid-side converter; determining a load-side firing angle for the load-side converter; determining a grid voltage of the AC power grid; modifying the grid-side firing angle and/or the load-side firing angle based on the grid voltage, such that when an undervoltage condition in the AC power grid occurs, the operation of the load commutated converter is adapted to a change in the grid voltage; and applying the grid-side firing angle to the grid-side converter and the load-side firing angle to the load-side converter.
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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：US10938321B2
公开(公告)日：2021-03-02
申请号：US16416789
申请日：2019-05-20
Applicant: ABB Schweiz AG
Inventor： Thomas Besselmann , Martin Bruha , Pieder Jörg , Stefan Almer
IPC: H02P6/00 , H02M7/525 , H02P25/024 , H02M5/451 , H02P27/06
Abstract: An electrical converter with at least two output phases includes a rectifier and a thyristor-based inverter interconnected by a DC link with an inductor, wherein the thyristor-based inverter includes a half-bridge with at least two half-bridge arms for each output phase of the electrical converter and each arm being provided by a thyristor. A method for switching the electrical converter includes: cyclically switching the thyristors of the inverter, such that at least one time instant, two thyristors of different half-bridge arms are switched on simultaneously, such that a pulse number, which determines at how many time instants thyristors of the inverter are switched during one stator voltage period, is lower than the number of half-bridge arms of the inverter.
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公开(公告)号：US20190273446A1
公开(公告)日：2019-09-05
申请号：US16416789
申请日：2019-05-20
Applicant: ABB Schweiz AG
Inventor： Thomas Besselmann , Martin Bruha , Joerg Pieder , Stefan Almer
IPC: H02M7/525 , H02M5/451 , H02P27/06 , H02P25/024
Abstract: An electrical converter with at least two output phases includes a rectifier and a thyristor-based inverter interconnected by a DC link with an inductor, wherein the thyristor-based inverter includes a half-bridge with at least two half-bridge arms for each output phase of the electrical converter and each arm being provided by a thyristor. A method for switching the electrical converter includes: cyclically switching the thyristors of the inverter, such that at least one time instant, two thyristors of different half-bridge arms are switched on simultaneously, such that a pulse number, which determines at how many time instants thyristors of the inverter are switched during one stator voltage period, is lower than the number of half-bridge arms of the inverter.
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公开(公告)号：US10075088B2
公开(公告)日：2018-09-11
申请号：US15618475
申请日：2017-06-09
Applicant: ABB Schweiz AG
Inventor： Thomas Besselmann , Stefan Almer , Jan Wiik , Sture Van de Moortel
CPC classification number: H02M5/451 , H02H7/1216 , H02M5/4505 , H02M2001/0003 , H02M2001/325
Abstract: A load commutated converter interconnects an AC power grid with an AC load and comprises a grid-side converter, a DC link and a load-side converter. A method for controlling the load commutated converter comprises: determining a gridside firing angle for the grid-side converter; determining a load-side firing angle for the load-side converter; determining a grid voltage of the AC power grid; modifying the grid-side firing angle and/or the load-side firing angle based on the grid voltage, such that when an undervoltage condition in the AC power grid occurs, the operation of the load commutated converter is adapted to a change in the grid voltage; and applying the grid-side firing angle to the grid-side converter and the load-side firing angle to the load-side converter.
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