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Artificial Neural Network-Based Feedforward-Feedback Control for Parabolic Trough Concentrated Solar Field
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Artificial Neural Network-Based Feedforward-Feedback Control for Parabolic Trough Concentrated Solar Field
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Journal Article
Artificial Neural Network-Based Feedforward-Feedback Control for Parabolic Trough Concentrated Solar Field
2025
Overview
The intermittency and fluctuation of solar irradiation pose challenges to the stable control of PTC collector loops. Therefore, this study proposes an Artificial Neural Network-based Feedforward-Feedback (ANN-FF-FB) model, which integrates irradiation prediction, feedforward, and feedback regulation to form a composite control strategy for the solar collecting system. During step changes in solar irradiation intensity, this model can quickly and stably adjust the outlet temperature, with a response time one-quarter that of a conventional PID model, a maximum overshoot of only 0.5 °C, a steady-state error of 0.02 °C, and it effectively reduces the entropy production in the transient process, improving the thermodynamic performance. Additionally, the ANN-FF-FB model’s response time during setpoint temperature adjustment is one-third that of the PID model, with a steady-state error of 0.03 °C. Ultimately, the system temperature stabilizes at 393 °C, with efficiency increasing to 0.212, and the overshoot being less than 1 °C.
Publisher
MDPI AG
Subject
