Utilization of renewable energies in association with energy storage is increased in different applications such as electrical vehicles (EVs), electric boats (EBs), and smart grids. A robust controller strategy plays a significant role to optimally utilize the energy resources available in a power system. In this paper, a suitable controller for the energy resources of an EB which consists of a 5 kW solar power plant, 5 kW fuel cell, and 2 kW battery package is designed based on the linear parameter varying (LPV) controller design approach. Initially, all component dynamics are augmented, and by exploiting the sector-nonlinearity approach, the LPV representation is derived. Then, the LPV control method determines the suitable gains of the states’ feedbacks to provide the required pulse commands of the boost converters of the energy resources to regulate the DC-link voltage and supply the power of EB loads. Comparing with the state-of-the-art nonlinear control methods, the developed control approach assures the stability of the overall system, as it considers all component dynamics in the design procedure. The real-time simulation results demonstrate the performance of the designed controller in the creation of a constant DC-link voltage.

中文翻译：

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全电动船中DC / DC转换器的线性参数可变控制方法

在电动汽车（EV），电动船（EB）和智能电网等不同应用中，与储能相关的可再生能源利用率得到了提高。鲁棒的控制器策略在优化利用电力系统中可用的能源方面发挥着重要作用。在本文中，基于线性参数变化（LPV）控制器设计方法，设计了一种适用于EB能源的控制器，该控制器由5 kW太阳能发电厂，5 kW燃料电池和2 kW电池组组成。最初，所有组件动力学都得到增强，并且通过利用扇区非线性方法，得出了LPV表示。然后，LPV控制方法确定状态反馈的合适增益，以提供能量的升压转换器所需的脉冲命令，以调节直流母线电压并提供EB负载的功率。与最新的非线性控制方法相比，已开发的控制方法在设计过程中考虑了所有组件的动力学特性，从而确保了整个系统的稳定性。实时仿真结果证明了设计的控制器在产生恒定直流母线电压时的性能。