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Smart lighting system using ANN-IMC for personalized lighting control and daylight harvesting

机译:使用ANN-IMC的智能照明系统可实现个性化照明控制和日光采集

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摘要

Lighting contributes a significant portion to the overall energy consumption in an office building. It is thus important to reduce the energy consumption of lighting systems especially for Net Zero Energy Buildings (NZEB). Maximizing daylight harvesting can significantly increase the energy savings. With increase in demand for satisfying occupant preferences in visual comfort, the need for personalized lighting in the office space is also rising. In this paper, a novel lighting control system for Net Zero Energy Buildings (NZEB) is proposed which models the lighting system using Artificial Neural Network (ANN) and utilizes this model with the Internal Model Control (IMC) principle for controller design. Modeling the lighting system using ANN reduces the challenge of modeling a large and complex system with inherent process variability without the need to analyze extensive data-sets. The proposed ANN-IMC controller uses feedback from sensors on the task table to maintain desired illuminance, is easy to tune with just one parameter and is robust to process variability. The proposed control design is applicable to square systems where the number of lights and number of sensors are equal. However, the proposed architecture can also be extended for controlling other lighting accessories such as roller blinds. The performance of the proposed lighting control system to harvest the daylight effectively is demonstrated using both simulation results and an experimental setup in test-bed environment. The versatility of the proposed system will allow an operator to deploy personalized lighting in an office space.
机译:照明在办公楼的整体能耗中占很大一部分。因此,重要的是减少照明系统的能耗,尤其是对于零能耗净建筑(NZEB)。最大限度地利用日光可以大大节省能源。随着满足人们对视觉舒适性的需求的增加,对办公室空间中个性化照明的需求也在增加。本文提出了一种新型的净零能耗建筑物照明控制系统(NZEB),该系统使用人工神经网络(ANN)对照明系统进行建模,并将此模型与内部模型控制(IMC)原理一起用于控制器设计。使用ANN对照明系统进行建模,减少了对具有固有过程可变性的大型复杂系统进行建模而无需分析大量数据集的挑战。拟议中的ANN-IMC控制器使用任务表上传感器的反馈来维持所需的照度,仅需一个参数即可轻松进行调整,并且对过程可变性具有鲁棒性。所提出的控制设计适用于灯光数量和传感器数量相等的方形系统。但是,提出的体系结构也可以扩展为控制其他照明附件,例如卷帘。使用仿真结果和在试验台环境中进行的实验设置,论证了所提出的照明控制系统可有效收集日光的性能。所提出的系统的多功能性将允许操作员在办公室空间中部署个性化照明。

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