摘要:
In a computer-implemented process modeling and simulating environment, an analyzer receives a process model with parameters in combination with data from previous or planned process performances. An analyzer receives a simulation target from a user, calculates evaluation results that represent the influence of the parameters in view of the simulation target, and presents the evaluation results as indicators to the user. Upon receiving modifications to the performance data, the process is simulated with modified performance data. Alternatively, the evaluation results are converted to computer instructions to automatically modify the process parameters.
摘要:
A method for advanced batch control of a batch process. The method discloses completing at least one cycle of the batch process and collecting data on at least one process variable and at least one product property. A model is created based on the data, wherein the model comprises inputs. Thereafter the batch process is initiated. At one or more decision points the model is utilized to obtain outputs. A controller utilizes the model outputs to control the batch in accordance with the model outputs. Final product properties are reached at decreased variability compared to the prior art.
摘要:
Methods and systems for substantially optimizing plant operations within a manufacturing environment. The method can include separating the manufacturing environment into two or more individual modules, wherein each individual module contains a fundamental principles-based model, and wherein the totality of the individual modules represents the entire manufacturing environment. Each individual module can be independently parameterized upon said module reaching steady state, wherein inter-module data flow can be provided to at least one of the individual modules during parameterization, and wherein an output of the parameterization comprises an individual, calibrated steady-state model of each individual module. A reduced order model can be derived from each parameterized module, and the reduced order models can be assembled to provide a facility reduced order model. The facility reduced order model can then be solved to provide improved or new operating conditions or operating condition targets.
摘要:
There is described a method and device for simulating a control and/or machine behavior of machine tools or production machines, in which data concerning the machine tools or production machines are transmitted to a simulation device by mans of an intranet and/or by means of an internet. The data can be automatically transmitted to the simulation device, whereby particularly after a change in an item of data from the quantity of data, this item of data is transmitted to the simulation device.
摘要:
In a method and computer program product for optimal operation of a power plant and a power plant optimising system an optimisation mode (1) minimises a cost function (J[u],J[P]) that comprises a deviation of lifetime of plant components (LTp(τ)) from a desired nominal lifetime trajectory (LTn(τ)). This is done by, at a given time, determining future values of input values (u(τ),P(τ)) such as control values (P(τ)) or process values (u(τ)) to the plant and simulating, in a simulation modulate (2), the behaviour of the plant up to a given future time. Corresponding lifetime values are determined in the simulation, and incorporated in an objective function. The optimisation module (1) minimises the cost function (J[u],J[P]) by varying the input values (u(τ),P(τ)). As a result, it is possible to operate the plant such that component lifetime (LTp(τ)) follows the desired trajectory (LTn(τ)).
摘要:
Systems and methods of modeling a best-guess semiconductor process flow for fabricating a desired s semiconductor device are provided. The best-guess process flow is modeled using an inverse modeling technique. This technique reverse engineers a desired semiconductor device to synthesize a model of a fabrication process that is likely to produce the desired semiconductor device. First, a desired device having one or more desired characteristics is modeled. Then, various process and material parameters, constraints, and actual measured data are used to synthesize one or more unique software models that represent a process flow likely to fabricate the desired device. If more than one process flow is modeled, various parameters are modified iteratively until a unique process flow model is synthesized.
摘要:
In a method and computer program product for optimal operation of a power plant and a power plant optimising system an optimisation module (1) minimises a cost function (Jnullunull,JnullPnull) that comprises a deviation of lifetime of plant components (LTp(null)) from a desired nominal lifetime trajectory (LTn(null)). This is done by, at a given time, determining future values of input values (u(null),P(null)) such as control values (P(null)) or process values (u(null)) to the plant and simulating, in a simulation module (2), the behaviour of the plant up to a given future time. Corresponding lifetime values are determined in the simulation, and incorporated in an objective function. The optimisation module (1) minimises the cost function (Jnullunull,JnullPnull) by varying the input values (u(null),P(null)). As a result, it is possible to operate the plant such that component lifetime (LTp(null)) follows the desired trajectory (LTn(null)).
摘要:
The invention provides control systems and methodologies for controlling a process having one or more motorized pumps and associated motor drives, which provide for optimized process performance according to one or more performance criteria, such as efficiency, component life expectancy, safety, emissions, noise, vibration, operational cost, or the like. More particularly, the subject invention provides for employing machine diagnostic and/or prognostic information in connection with optimizing an overall business operation over a time horizon.
摘要:
Roughly described, a manufacturing process is enhanced by using TCAD and TCAD-derived models. A TCAD simulation model of the process is developed, which predicts, in dependence upon a plurality of process input parameters, a value for a performance parameter of a product to be manufactured using the process. Estimated, predicted or desired values for a calculated subset of the parameters (including either process input parameters or product performance parameters or both), are determined in dependence upon the process model, and further in dependence upon actual, estimated or desired values for a different subset of the parameters (again either process input parameters or product performance parameters or both). The determination is preferably made using a process compact model of the process, itself developed in dependence upon the simulation model.
摘要:
A method for optimizing the operation of a metallurgical plant using a model by modeling supply and discharge media streams, predetermining structure parameters which define the media streams, linking the media streams to one another, predetermining starting parameters which describe initial states, predetermining input operating parameters, determining and outputting output operating parameters, and determining and outputting end parameters, which describe end states of the units, by the model, predetermining the structure parameters to an optimization computer by a user and transmitting the parameters from the optimization computer to a model, and determining optimized operating parameters by the optimization computer on the basis of the starting parameters and an assessment criterion in accordance with an optimization algorithm using the model, wherein the assessment criterion is predetermined to the optimization computer by the user.