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.

公开(公告)号：EP3093729A1

公开(公告)日：2016-11-16

申请号：EP16152564.7

申请日：2016-01-25

Applicant: Danfoss A/S

Inventor： RUSTJA, Bozidar ,  DROBEZ, Benjamin ,  ZAGAR, Tomaz ,  OBLAK, Uros ,  PODRZAJ, Gregor

IPC: G05D16/06 ,  F24D19/00 ,  G05D16/16

CPC classification number: G05D16/0663 ,  F16K31/1264 ,  F16K31/165 ,  F24D10/006 ,  F24D19/1006 ,  Y02E20/14

Abstract: The present invention relate to the control of a valve that enables the self-acting (differential) pressure controller to alter its set point according to a demand of the system over which it controls (differential) pressure (i.e. a control valve, to improve control ability) or the demand of the network of which part it is (i.e. to achieve better hydraulic balance) or to input from a network or a system operator.

Abstract translation: 本发明涉及一种阀门的控制，其能够使自动（差动）压力控制器根据其控制的系统的需求来改变其设定点（差压）（即，控制阀，以改善控制 能力）或网络的需求（即实现更好的液压平衡）或从网络或系统操作员输入。