| 摘要 |
The invention describes and illustrates a method for calculating the state variables (x) of a hybrid differential-algebraic process model (hybrid DAP, hDAP) in successive time steps on a process computer (1) having a process interface (2), wherein the process computer (1) is set up in such a manner that at least one process variable (xp) of a physical process (3) can be recorded by the process computer (1) and/or an output variable for influencing the physical process (3) can be output by the process computer (1) via the process interface (2), and a current mode (mt+1) of the hybrid DAP (hDAP) is determined in a calculation process by evaluating the state variables (x), and, if the current mode (mt+1) of the hybrid DAP (hDAP) differs from the previously applicable mode (mt) of the hybrid DAP (hDAP), an executable mode-specific process model (mDAPt+1, exe) corresponding to the current mode (mt+1) is selected from a group (4) of executable mode-specific process models (mDAPexe) and is used as a basis for further calculation. It is possible to quickly calculate the different modes of the hybrid DAP, with a reduced memory loading of the process computer, by determining at least one likely future mode (mi, mj, mk) of the hybrid DAP (hDAP) in a prediction process at the calculation run time by evaluating the state variables (x), extracting the mode-specific DAP (mDAPi, mDAPj, mDAPk) corresponding to the determined likely future mode (mi, mj, mk) from the hybrid DAP (hDAP), generating an executable mode-specific process model (mDAPi,exe, mDAPj,exe, mDAPk,exe) from the extracted mode-specific DAP (mDAPi, mDAPj, mDAPk) and supplying said process model to the group (4). |
