公开(公告)号：EP3407153A1

公开(公告)日：2018-11-28

申请号：EP18169221.1

申请日：2018-04-25

Applicant: Danfoss A/S

Inventor： VIDIC, Tomaz ,  KOJIC, Sasa ,  KRANCAN, Samo ,  PODRZAJ, Gregor ,  TERZIC, Sandro

IPC: G05D16/20

CPC classification number: G05D16/2093

Abstract: The invention relate to method of controlling a flow network comprising pressure controlling means adapted to regulate a pressure difference of a fluid over two locations in the flow network according to a pressure setting,
a controller adapted to adjust the pressure setting and to track a physical value in the system, the method being for the controller to operate
- at a normal load mode where the pressure controlling means is set at a basic pressure setting when the physical value is within a first threshold range, and
- at a unstable load control mode including a change of the pressure setting to a unstable load pressure setting when it a gets outside said first threshold range.
The invention further relate to the controller itself adapted to operate accordingly.