Plantwide Control Structure Selection Methodology based on Economics: a Quadratic Approximation
摘要：
The back-off methodology has been developed and refined in the last decades and offers a systematic tool for solving the simultaneous design and control problem. The first formulation of the methodology was based on linear process and control models. In previous work an improved formulation was proposed where use is made of a nonlinear process model that ensures improved accuracy but increases the complexity and the computational cost of the final problem. In this work, another formulation is presented which is based on the quadratic approximation of the objective function, resulting in a Mixed Integer Quadratic Programming (MIQP) formulation. This approximation can offer greater accuracy than the linear counterpart with a reasonable increase in the computational complexity. The three formulations are evaluated in a reactor-separator-recycle process.
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会议时间：
2020/01/01
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