公开(公告)号：WO2018091682A1

公开(公告)日：2018-05-24

申请号：PCT/EP2017/079658

申请日：2017-11-17

Applicant: ABB SCHWEIZ AG

Inventor： BESSELMANN, Thomas ,  BRUHA, Martin ,  PIEDER, Joerg ,  ALMER, Stefan

IPC: H02P25/024 ,  H02P27/06 ,  H02M7/525

Abstract: An electrical converter (12) with at least two output phases comprises a rectifier (28) and a thyristor-based inverter (34) interconnected by a DC link (30) with an inductor (32), wherein the thyristor-based inverter (34) comprises a half-bridge (40) with at least two half-bridge arms (42a, 42b) for each output phase of the electrical converter (12) and each arm (42a, 42b) being provided by a thyristor (38). A method for switching the electrical converter (12) comprises: cyclically switching the thyristors (38) of the inverter (34), such that at at least one time instant (58), two thyristors (38) of different half-bridge arms (42a, 42b) are switched on simultaneously, such that a pulse number, which determines at how many time instants (58) thyristors (38) of the inverter (34) are switched during one stator voltage period, is lower than the number of half-bridge arms (42a, 42b) of the inverter (34).

公开(公告)号：WO2016207165A1

公开(公告)日：2016-12-29

申请号：PCT/EP2016/064318

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

CPC classification number: H02P27/06 ,  F04D27/001 ,  F04D27/0261 ,  F05D2260/821 ,  F05D2270/3061 ,  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.

Abstract translation: 控制压缩机系统（10）的方法包括由电网（36）提供并驱动气体压缩机（32）的气体压缩机（32）和电动变速驱动器（30）。 控制压缩机系统（10）的方法包括：通过将电网电压（V）与电压骤降阈值进行比较来检测供给电驱动器（30）的电网电压（V） 在这种情况下，检测到电压骤降（12）：假定电网电压（V）的未来发展（72）; 基于在压缩机系统（10）中测量的至少一个过程参数（86）和电网电压（V）的未来发展（72）的假设来预测至少一个过程量（q）的未来发展（84） ）; 将至少一个处理量（q）的预测未来发展（84）提供给保护系统（88）。 电网电压（V）的假定的未来开发（72）基于预定义的深度和平均电压下降的预定长度，预定深度和平均电压下降的预定长度在线从一组历史 电压跌落情况下，电网电压（V）的假设未来发展（72）基于实际测量电压持续的假设。

公开(公告)号：EP3314743B1

公开(公告)日：2020-04-08

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

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.