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伪权向量法是解决多目标决策问题的一种常见方法,但由于其决策函数中缺少对决策变量调整幅值的约束,易造成因决策变量(通常为控制回路的设定值)变动幅度过大而影响被控过程稳定性的后果,因而限制了该方法在过程控制系统稳态优化中的应用。对此,提出了一种适合于过程控制系统稳态优化的伪权向量多目标决策方法。该方法综合考虑了决策者偏好以及决策变量的变化情况,为控制系统的稳态优化提供了一种适合实际的决策方法。仿真结果验证了该方法的有效性和实用性。
The pseudo-vector method is a common method to solve multi-objective decision problems. However, due to the lack of constraints on the adjustment of decision variables in its decision function, it is easy to cause the variation of decision variables (usually the control loop settings) Large and affect the stability of the controlled process, thus limiting the application of this method in steady-state optimization of the process control system. In this regard, a multi-objective decision-making method of pseudo-weight vector suitable for steady-state optimization of process control system is proposed. The method takes into account the preferences of decision-makers and the changes of decision variables, and provides a suitable decision-making method for the steady-state optimization of the control system. Simulation results verify the effectiveness and practicability of this method.