基于线性变参数框架的钒氧化还原液流电池电解液流量控制
Electrolyte Flow Rate Control for Vanadium Redox Flow Batteries using the Linear Parameter Varying Framework
摘要：
在本文中，电解液流量控制方法的全钒氧化还原液流电池（VRB）系统的基础上的线性参数变化（LPV）的框架。调节电解质流速以在电池堆电压效率和泵送能量损失之间提供折衷，从而实现最佳电池能量效率。非线性过程模型嵌入在一个线性参数变化的状态空间描述和一组状态反馈控制器的设计，以处理在充电和放电过程中的电流波动。在不同的操作条件下进行了仿真研究，以证明所提出的方法的性能。该控制方法在实验室规模的VRB系统上进一步实施。
英文摘要：
In this article, an electrolyte flow rate control approach is developed for an all-vanadium redox flow battery (VRB) system based on the linear parameter varying (LPV) framework. The electrolyte flow rate is regulated to provide a trade-off between stack voltage efficiency and pumping energy losses, so as to achieve optimal battery energy efficiency. The nonlinear process model is embedded in a linear parameter varying state-space description and a set of state feedback controllers are designed to handle fluctuations in current during both charging and discharging. Simulation studies have been conducted under different operating conditions to demonstrate the performance of the proposed approach. This control approach was further implemented on a laboratory scale VRB system.
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