Flexible process controller
AssigneeSiemens Electric Limited
InventorsLai Lo, Dominic Leung, Piotr Grudzinski
Life of this patent
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Abstract
A flexible process controller for coordinating the operations of various equipment is disclosed. Briefly stated, in the preferred embodiment of the present invention, various parameters of the sub-systems in a HVAC system are monitored and made alterable or changeable. These parameters are transmitted to and controlled by a flexible process controller which thereafter cooperates with a motor drive controller. Logic incident to and resident in the flexible process controller consider the various parameters monitored and allow the user or the system to minimize power consumption amongst one or more of the sub-systems while maximizing efficiency and operability.
Claims10
A method for actively coordinating the operation of a process system having at least first and second process equipment components, each of the at least first and second process equipment components operating in response to a plurality of predetermined control parameters, said method comprising the steps of:
- monitoring a plurality of predetermined sensor parameters corresponding to a process environment of the process system and producing environmental data values representative thereof;
- controlling the first process equipment component by adjusting selected ones of the plurality of control parameters in response to the environmental data values and to a plurality of predetermined set-point parameters which relate to respective predetermined desired output values of the process system;
- and
- controlling the second process equipment component by adjusting selected ones of the plurality of control parameters in response to the environmental data values and to the plurality of set-point parameters;
- wherein the controlling of the second process equipment component is concurrent with the controlling of the first process equipment component and the controlling of the first and second process equipment components adjust the plurality of control parameters to optimize at least one parameter of the plurality of sensor parameters which one parameter is affected by each of the first and second process equipment components.
A device for actively coordinating the operation of a process system having at least first and second process equipment components, each of the at least first and second process equipment components operating in response to a plurality of predetermined control parameters said device comprising:
- instrumentation means for monitoring a plurality of sensor parameters corresponding to a process environment of the process system and for producing environmental data values representative thereof;
- flexible process control means for controlling the at least first and second process equipment components, said flexible process control means including:
- first control means, for controlling the first process equipment component by adjusting selected ones of the plurality of control parameters, said first control means being responsive to the environmental data values and to a plurality of predetermined set-point parameters which relate to respective predetermined desired output values of the process system;
- and
- second control means for controlling the second process equipment component by adjusting selected ones of the plurality of control parameters, said second control means being responsive to the environmental data values and to the plurality of set-point parameters;
- wherein the first control means operates concurrently with the second control means and the flexible process control means adjusts the plurality of control parameters to optimize at least one parameter of the plurality of sensor parameter values which one parameter is affected by each of the first and second process equipment components.
Dependencies are inferred from the claim text.