The energy management strategy of the multi-source parallel power system for the self-reconfigurable ground vehicle

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-27 DOI:10.1177/09544070241245466

Xu Yang, Jun Ni

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引用次数: 0

Abstract

The self-reconfigurable ground vehicle (SRGV) has the ability of self-assembly and self-disassembly, which is a disruptive innovation to the traditional fixed configuration ground vehicle. The basic component of the SRGV is defined as a cell unit (CU), which is a complete system capable of working independently and has the basic function of the ground vehicle. The reconfiguration of the SRGV is not only the connection of the mechanical systems but also the integration between the power sources of different CUs. To this end, this paper proposes a novel multi-source parallel power system (MSPPS) for the SRGV, whose key characteristics are multi-branch and co-bus. The MSPPS can extend any number of power sources, which greatly improves the power level of SRGV. In this paper, the MSPPS with battery power source is discussed. The disassembly and assembly of the SRGV could lead to some inconsistencies such as SoC between the battery packs of each CU. To prolong the lifetime of the battery packs and working time of the SRGV, a hierarchical proportional control (HPC) strategy and a filtered model predictive control (FMPC) strategy are proposed. Both energy management strategies can reasonably allocate the output energy between different battery packs to meet the power demand and reduce battery inconsistencies. To verify and compare the effectiveness of the proposed two strategies, numerous simulations are carried out. The simulation results show that the FMPC strategy has faster convergence speed and lower power fluctuations in the energy management process. A SRGV prototype consisting of three CUs is developed, and the experimental platform for the power system of the SRGV is successfully established. The feasibility of the proposed MSPPS architecture is validated. The proposed HPC strategy is deployed in the rapid ECU. The experiment results are similar to the simulations and effectively demonstrate the real-time performance.

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可自重构地面飞行器多源并行电源系统的能量管理策略

可自重构地面车辆（SRGV）具有自组装和自拆卸能力，是对传统固定构型地面车辆的颠覆性创新。SRGV 的基本组件被定义为单元（CU），它是一个能够独立工作的完整系统，具有地面车辆的基本功能。SRGV 的重新配置不仅包括机械系统的连接，还包括不同 CU 的动力源之间的整合。为此，本文为 SRGV 提出了一种新型多源并行电源系统（MSPPS），其主要特点是多分支和共总线。MSPPS 可以扩展任意数量的电源，从而大大提高了 SRGV 的功率水平。本文讨论了采用电池电源的 MSPPS。SRGV 的拆卸和组装可能会导致一些不一致性，例如每个 CU 的电池组之间的 SoC。为了延长电池组的使用寿命和 SRGV 的工作时间，提出了分层比例控制（HPC）策略和滤波模型预测控制（FMPC）策略。这两种能量管理策略都能在不同的电池组之间合理分配输出能量，以满足电力需求并减少电池的不一致性。为了验证和比较所提两种策略的有效性，我们进行了大量仿真。仿真结果表明，FMPC 策略收敛速度更快，能量管理过程中的功率波动更小。开发了由三个 CU 组成的 SRGV 原型，并成功建立了 SRGV 功率系统实验平台。验证了所提出的 MSPPS 架构的可行性。在快速 ECU 中部署了建议的 HPC 策略。实验结果与仿真结果相似，有效地证明了实时性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.