EP 4249753 A2 20230927 - SURGE CONTROL SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS
Title (en)
SURGE CONTROL SYSTEMS AND METHODS FOR DYNAMIC COMPRESSORS
Title (de)
SYSTEME UND VERFAHREN ZUR PUMPSTEUERUNG FÜR DYNAMISCHE VERDICHTER
Title (fr)
SYSTÈMES ET PROCÉDÉS DE RÉGULATION DE POMPAGE POUR COMPRESSEURS DYNAMIQUES
Publication
Application
Priority
- US 202017247724 A 20201221
- US 202017247725 A 20201221
- EP 21840285 A 20211210
- US 2021062800 W 20211210
Abstract (en)
A system includes a dynamic compressor, a variable frequency drive (VFD), and a controller. The dynamic compressor includes a motor having a driveshaft rotatably supported within the dynamic compressor, and a compression mechanism connected to the driveshaft and operable to compress a working fluid upon rotation of the driveshaft. The VFD includes a sensor configured to sense a current provided to the motor. The controller is connected to the motor and includes a processor and a memory. The memory stores instructions that program the processor to operate the motor using the VFD to compress the working fluid, determine when surge events have occurred, store in the memory an indication of each determined surge event, and determine whether or not to take protective action when the processor determines that a surge event has occurred.
IPC 8 full level
F04D 17/12 (2006.01); F04D 25/06 (2006.01); F04D 27/00 (2006.01); F04D 27/02 (2006.01); F04D 29/056 (2006.01)
CPC (source: EP KR)
F04D 17/12 (2013.01 - EP KR); F04D 25/0606 (2013.01 - EP KR); F04D 27/001 (2013.01 - EP KR); F04D 27/0207 (2013.01 - EP); F04D 27/0215 (2013.01 - EP KR); F04D 27/0261 (2013.01 - EP KR); F04D 27/0292 (2013.01 - EP KR); F04D 29/056 (2013.01 - EP KR); F05D 2270/335 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022140079 A2 20220630; WO 2022140079 A3 20220728; WO 2022140079 A9 20220818; EP 4244487 A2 20230920; EP 4249753 A2 20230927; EP 4249753 A3 20231018; JP 2024502241 A 20240118; KR 20230119662 A 20230816
DOCDB simple family (application)
US 2021062800 W 20211210; EP 21840285 A 20211210; EP 23179640 A 20211210; JP 2023537328 A 20211210; KR 20237022144 A 20211210