-
公开(公告)号：US11239779B2
公开(公告)日：2022-02-01
申请号：US15908231
申请日：2018-02-28
Applicant: ABB Schweiz AG
Inventor： Andrew Tuckey , Simon Walton
Abstract: A method of controlling a power converter, connected to an electrical grid, to mimic a synchronous generator, by: determining a frequency control error with respect to a setpoint and actual frequency of the grid, determining an input power to an inertia model of a synchronous generator based on the frequency control error, regulating by means of the input power a rotational frequency of the inertia model, determining a voltage control error with respect to a setpoint and actual voltage, determining an exciter parameter of a synchronous generator model based on the voltage control error, regulating by means of the exciter parameter an output voltage of the synchronous generator model, adjusting the rotational frequency or a phase angle obtained from the rotational frequency, and the output voltage based on a virtual impedance of a stator of the synchronous generator model, and controlling the power converter based on the adjusted rotational frequency or the adjusted phase angle and on the adjusted output voltage.
-
公开(公告)号：US20180269819A1
公开(公告)日：2018-09-20
申请号：US15908231
申请日：2018-02-28
Applicant: ABB Schweiz AG
Inventor： Andrew Tuckey , Simon Walton
Abstract: A method of controlling a power converter, connected to an electrical grid, to mimic a synchronous generator, by: determining a frequency control error with respect to a setpoint and actual frequency of the grid, determining an input power to an inertia model of a synchronous generator based on the frequency control error, regulating by means of the input power a rotational frequency of the inertia model, determining a voltage control error with respect to a setpoint and actual voltage, determining an exciter parameter of a synchronous generator model based on the voltage control error, regulating by means of the exciter parameter an output voltage of the synchronous generator model, adjusting the rotational frequency or a phase angle obtained from the rotational frequency, and the output voltage based on a virtual impedance of a stator of the synchronous generator model, and controlling the power converter based on the adjusted rotational frequency or the adjusted phase angle and on the adjusted output voltage.
-
公开(公告)号：US10566786B2
公开(公告)日：2020-02-18
申请号：US15837514
申请日：2017-12-11
Applicant: ABB Schweiz AG
Inventor： Andrew Tuckey , Juergen Zimmerman
Abstract: The present invention is concerned with a fault current enhancement for triggering a protection device, such as a fuse or circuit breaker or protection relay used in protecting a distribution line of a power distribution network in an efficient and economical way. An Induction Machine (IM) is operated in parallel with an energy source connected to the distribution line via a Power Electronics (PE) interface, to provide a fault current characteristic of the composite PE interface and IM similar to that of a synchronous generator. Comparable fault currents enable a same protection device to be provided for protecting the distribution line irrespective of a kind of interface used to source energy to the distribution line.
-
公开(公告)号：US20180102638A1
公开(公告)日：2018-04-12
申请号：US15837514
申请日：2017-12-11
Applicant: ABB Schweiz AG
Inventor： Andrew Tuckey , Juergen Zimmerman
CPC classification number: H02H7/26 , H02H7/1227 , H02J3/38
Abstract: The present invention is concerned with a fault current enhancement for triggering a protection device, such as a fuse or circuit breaker or protection relay used in protecting a distribution line of a power distribution network in an efficient and economical way. An Induction Machine (IM) is operated in parallel with an energy source connected to the distribution line via a Power Electronics (PE) interface, to provide a fault current characteristic of the composite PE interface and IM similar to that of a synchronous generator. Comparable fault currents enable a same protection device to be provided for protecting the distribution line irrespective of a kind of interface used to source energy to the distribution line.
-
-
-
Search Results
4
records
(took 0.024 seconds)
