Teknik Dua Paras Terimbuh untuk Kawalan Optimum Penyesuaian Keadaan Pegun Proses Tunggal

Augmented two level technique is an extension of the previous two level method which could widen the application of the algorithm to non-convex problems while at the same time improving the convergent of certain convex problems. From the viewpoint of algorithm s structure, the augmented two level technique may be considered as an equivalent version of the modified two step method, except the difference in calculating the Lagrange multipliers, A, without using any derivation on process output with respect to the set point.Even though the off-line computer calculation cost may increase, the advantage of this method is the Lagrange multipliers, A, are determined bysupremal level using Powell Conjugate Direction method without disturbing the process. Thus the augmented two level technique can be applied onto systems contaminated by noise and control problems with undifferentiable inequality constraints G (c,y) respect toy. Whereas modified two step method will encounter difficulties due to the need of G y (c,y) to determine the Lagrange multipliers, k. Simulation results show that appropriate combination value between Lagrange multipliers for square terms, p ,and update coefficient e, can solve non-convex problem and reduce optimal set points changes significantly for certain convex problems. Update coefficient, e between 0.9 and 7.5 is appropriate for most studied cases.