| 摘要 |
<p>Process control methods and apparatus for controlling batch processes including batch heating processes. The present invention includes iterative learning control (ILC) techniques to provide improved run-to-run process control. One method provides a desired temperature profile over the length of a batch time period. This method gathers historical measured value data over the length of a first batch run which can be converted to deviation or error historical data, as well as a historical output history of outputs provided to control the process for the first run. The historical deviation and output histories from the first run can then be used to generate the output profile for a second batch run. Thus, the outputs from a first batch, such as the output to a local heater control, together with the deviation or error history from the rist batch run, can be added to the output value provided during the previous batch to generate new output value to be used to control a second batch run.</p> |
