公开(公告)号：EP3359820A1

公开(公告)日：2018-08-15

申请号：EP15787145.0

申请日：2015-10-07

Applicant: ABB Schweiz AG

Inventor： CORTINOVIS, Andrea ,  LEWANDOWSKI, Daniel ,  MERCANGOEZ, Mehmet ,  LIPNICKI, Piotr

IPC: F04D27/00 ,  F04D27/02 ,  G05B17/02

CPC classification number: F04D27/001 ,  F04D27/02

Abstract: A method is disclosed for controlling at least one compressor (13) in a gas compression system (60), the compressor being driven by an electric motor (3) powered by a drive (2). The method further comprises obtaining measurements of one or more process variables (21) for the compressor and/or compression system from sensors mounted in the compressor or the gas compression system and obtaining a value of at least one electrical parameter (31) from the drive (2) and/or the electric motor (3). Further an estimation (35) of at least one process variable is calculated and compared with a measurement of the process variable (q). The measurement is then either validated or else replaced with the estimated value (q est ) of the process variable. A computer program for carrying out the method and a compressor and compression systems employing the method are also disclosed.

公开(公告)号：EP3314743A1

公开(公告)日：2018-05-02

申请号：EP16733372.3

申请日：2016-06-21

Applicant: ABB Schweiz AG

Inventor： CORTINOVIS, Andrea ,  MERCANGOEZ, Mehmet ,  PIEDER, Joerg ,  VAN DE MOORTEL, Sture ,  BESSELMANN, Thomas

IPC: H02P27/06 ,  F04D27/00 ,  H02H7/08

Abstract: A method of controlling a compressor system (10) comprises a gas compressor (32) and an electrical variable-speed drive (30) supplied by an electrical grid (36) and driving the gas compressor (32). A method of controlling the compressor system (10) comprises: detecting a voltage dip (12) in a grid voltage (V) supplied to the electrical drive (30) by comparing the grid voltage (V) with a voltage dip threshold; in the case, a voltage dip (12) is detected: assuming a future development (72) of the grid voltage (V); predicting a future development (84) of at least one process quantity (q) based on at least one process parameter (86) measured in the compressor system (10) and the assumption of the future development (72) of the grid voltage (V); providing the predicted future development (84) of the least one process quantity (q) to a protection system (88). The assumed future development (72) of the grid voltage (V) is based on a predefined depth and a predefined length of an average voltage dip, the predefined depth and the predefined length of the average voltage dip are determined online from a set of historical voltage dip cases, and the assumed future development (72) of the grid voltage (V) is based on an assumption of a persistence of the actual measured voltage.

公开(公告)号：EP3311229A1

公开(公告)日：2018-04-25

申请号：EP16729902.3

申请日：2016-06-16

Applicant: ABB Schweiz AG

Inventor： CÉLINE, Mahieux ,  HEMRLE, Jaroslav ,  MERCANGOEZ, Mehmet

IPC: G05B15/02 ,  G05B13/02

CPC classification number: G05B15/02 ,  G05B13/021

Abstract: The present invention is concerned with energy management of a remote farm or rural agricultural community with no or limited access to a main electrical grid. According to the invention, an innovative use of a multi-grid system for the provision of electricity, water, and thermal energy for heating and cooling needs is proposed for farms and farming communities. The existence of at least one continual stream or flow of material in a network different from but interacting with an electrical microgrid is exploited in view of a flexible storage of energy beyond a conventional perimeter of the microgrid and without reconversion of the stored energy into electrical energy. Optimal operation of the microgrid may then be achieved by scheduling or planning electrical power generation within the farm in conjunction with farming related loads that likewise represent a time-wise degree of freedom.