This paper presents a practical comparison for some of the most relevant tuning rules for feedforward compensators that have been published in the recent years. The work is focused on the rejection of disturbances that affect the process output. The different tuning rules are evaluated in simulation and several performance indices are calculated in order to provide a quantitative comparison. All the tuning rules are compared against a standard feedback controller and the classical open-loop design method for feedforward compensators. Furthermore, two of the analysed tuning rules are tested in a real process for the first time. To that end, a traditional greenhouse was selected as a test bed for an experimental evaluation of the feedforward controllers in the context of a challenging control problem with significant disturbances.

本文对近年来发表的一些最相关的前馈补偿器调谐规则进行了实际比较。这项工作的重点是抑制影响过程输出的干扰。在模拟中评估不同的调整规则，并计算多个性能指标以提供定量比较。所有调整规则都与标准反馈控制器和前馈补偿器的经典开环设计方法进行比较。此外，首次在实际过程中测试了两个分析的调整规则。为此，在具有显着扰动的具有挑战性的控制问题的背景下，选择传统温室作为前馈控制器的实验评估的试验台。