摘要:
Ein Verfahren zur Echtzeitbestimmung des Leistungsverlaufs und/oder Energieflusses einer Antriebseinrichtung (1) mit mehreren miteinander über einen gemeinsamen Zwischenkreis (Z) verbundenen elektrischen Antrieben (A i ) wird beschrieben. Das Verfahren hat die Schritte: - Ermitteln der jeweiligen elektrischen Antriebsleistung (P W,i ) der elektrischen Antriebe (A i ) und - Bestimmen des Leistungsbedarfs (P N ) in Abhängigkeit von der Summe der ermittelten elektrischen Antriebsleistungen (P W,i ) der miteinander über den gemeinsamen Zwischenkreis (Z) elektrisch verbundenen Antriebe (A i ).
摘要:
An electric power demand control system (100) selects a presswork device (3) as a target of electric power demand control in a case where the ratio of the total time length of a non-working state of the presswork device (3) within a time period to the total time length of a working state of the presswork device (3) within the time period is larger than a threshold. This makes it possible to alleviate, for example, (i) a decrease in production efficiency caused by electric power demand at a facility at which devices are installed and (ii) environmental deterioration due to electric power demand.
摘要:
The invention relates to a method for determining an energy-efficient operating point (31, 44, 45, 46) of a machine tool (2, 3, 4) of a machine tool system (1), wherein: identical workpieces (5) for processing can be chronologically supplied to the machine tool (2, 3, 4); the machine tool (2, 3, 4) has an operating point-dependent machine cycle time and an operating point-dependent power requirement; the machine-tool system comprises at least two machine tools (2, 3, 4) and has a system cycle time (t 1 ); and the machine cycle time is less than the system cycle time (t 1 ). The claimed method is characterised in that the energy-efficient operating point (31, 44, 45, 46) is determined according to an energy requirement characteristic function of the machine tool (2, 3, 4), wherein the energy requirement characteristic function represents a machine cycle time-dependent energy requirement of the machine tool (2, 3, 4) over the system cycle time ( 1 ). The invention further relates to a corresponding device (9, 24) and to a machine tool system (1).
摘要:
Disclosed herein is a control system for NOx reduction in a power plant, the control system comprising a model predictive controller; a proportional integral differential controller and/or an adaptive controller; where the proportional integral differential controller and/or an adaptive controller are subordinated to and in operative communication with the model predictive controller; where the proportional integral differential controller and/or an adaptive controller comprise a feedback loop; a NOx reduction system comprising a NOx reducing agent supply tank and a water supply tank; and a furnace for combusting a fuel; where the furnace lies downstream of the NOx reduction system and where the furnace is provided with a plurality of nozzles that are in fluid communication with the NOx reduction system; where the control system is in electrical communication with the NOx reduction system.
摘要:
A method for energy demand management in a production flow line having a plurality of stations. The method includes calculating a slack time for the production flow line or a selected station and determining an option of operation mode flexibility. In addition the method includes performing a feasibility analysis of the option and providing a solution based on an elasticity measure. The method is supported by a mean value analysis technique and discrete event simulation. The method provides an automated energy auditing and analysis tool in a production system.
摘要:
An electric power demand control system (100) selects a presswork device (3) as a target of electric power demand control in a case where the ratio of the total time length of a non-working state of the presswork device (3) within a time period to the total time length of a working state of the presswork device (3) within the time period is larger than a threshold. This makes it possible to alleviate, for example, (i) a decrease in production efficiency caused by electric power demand at a facility at which devices are installed and (ii) environmental deterioration due to electric power demand.
摘要:
A method for energy demand management in a production flow line having a plurality of stations. The method includes calculating a slack time for the production flow line or a selected station and determining an option of operation mode flexibility. In addition the method includes performing a feasibility analysis of the option and providing a solution based on an elasticity measure. The method is supported by a mean value analysis technique and discrete event simulation. The method provides an automated energy auditing and analysis tool in a production system.
摘要:
Methods for CAD, simulation, and corresponding systems and computer-readable mediums. A method includes receiving (402) inputs including one or more of robot information (174), operation information (176), position information (178), and constraint information (180). The method includes generating (404) a list (172) of candidate positions (208) of a robot (202). The method includes, for each candidate position (208), determining (406) a time value (152) of the candidate position (208) and when the time value (152) of the candidate position (208) does not meet a threshold cycle time value, removing the candidate position (208). The method includes, for each candidate position (208), determining (412) an energy consumption value (150) of the candidate position (208). The method includes, for each candidate position (208), determining (414) one or more of a rating (164) and a ranking (166) for the candidate position (208) based on the time value (152) and the energy consumption value (150). The method includes determining (416) the optimal position of the robot (202) based on the ranking (166) of each candidate position (208).
摘要:
An apparatus and a method for generating acceleration and deceleration patterns for control of a robot in a servo system which is equipped with a plurality of driving axes so constituted as to mutually exert dynamic interference, in such a manner that a synchronism is attained at acceleration start points, velocity peak points and deceleration end points in the patterns for the individual driving axes. Peak time calculating means responds to the information relative to dynamic parameters from constant setting means and command means, and calculates the peak time, which is required until the velocity reaches its peak after the pattern generation start point, from the kinetic energy consumed for each displacement and also from the power distribution relative to the driving sources. And pattern generating means generates, on the basis of the peak time thus obtained, an acceleration pattern and a temporally reflected deceleration pattern for each driving axis, whereby the tact time required for each displacement can be minimized.