Improved Active Damping Stabilization of DAB Converter Interfaced Aircraft DC Microgrids Using Neural Network-Based Model Predictive Control

控制理论(社会学) 超调(微波通信) 电压 加权 工程类 模型预测控制 电压调节器 转换器 人工神经网络 计算机科学 控制(管理) 电气工程 医学 机器学习 放射科 人工智能
作者
Dawei Zhao,Ke Shen,Linglin Chen,Zhenyu Wang,Weiguo Liu,Tao Yang,Patrick Wheeler
出处
期刊:IEEE Transactions on Transportation Electrification 卷期号:8 (2): 1541-1552 被引量:13
标识
DOI:10.1109/tte.2021.3094757
摘要

The stability problem induced by constant power loads (CPLs) is becoming more prominent in more electric aircraft. In this article, the stabilization issue of dc distribution bus with dual-active-bridge (DAB) converters was investigated. On the basis of voltage regulation, an active damping solution based on model predictive control (MPC) was proposed by explicitly incorporating a stabilization term into a cost function. In this solution, to ensure the output voltage performance with a smaller steady-state error and a dynamic voltage overshoot, an adaptive weighting factor was adopted with a stray resistor taken into account. A theoretical design of the weighting factors was performed using the artificial neural network (ANN) method. The proposed approach could supply stiff load voltage and provide good dc-link voltage stabilization, as well as load voltage overshoot clamping. These findings were verified through the computer simulations and practical experiments of an 800-W converter prototype with a switching frequency of 20 kHz, an input voltage of 270 V, and an output voltage of 270 V.
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