Andrés Tobón, Carlos Andrés Ramos-Paja, M. L. Orozco-Gutíerrez, Andrés Julián Saavedra-Montes, S. I. Serna-Garcés
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引用次数: 0
摘要
混合储能系统在增强电网稳定性和管理电网变异性方面发挥着重要作用,对可再生能源领域产生了重大影响。然而,实施这些系统需要先进的控制策略,以确保正确运行。本文提出了一种算法,用于设计由电池、超级电容器和双向泽塔转换器组成的混合储能系统的功率和控制阶段。控制阶段包括一个与功率电路参数共同设计的自适应滑动模式控制器。该设计算法可确保电池免受高频瞬变的影响,从而缩短电池的使用寿命,并与低成本微控制器兼容。此外,Zeta 转换器的连续输出电流不会给电池、微电网或负载带来谐波电流。通过使用 PSIM 电气仿真软件(2024.0 版)的一个应用实例验证了所提出的解决方案,与传统的级联 PI 结构相比,该方案具有更优越的性能。
Adaptive Sliding-Mode Controller for a Zeta Converter to Provide High-Frequency Transients in Battery Applications
Hybrid energy storage systems significantly impact the renewable energy sector due to their role in enhancing grid stability and managing its variability. However, implementing these systems requires advanced control strategies to ensure correct operation. This paper presents an algorithm for designing the power and control stages of a hybrid energy storage system formed by a battery, a supercapacitor, and a bidirectional Zeta converter. The control stage involves an adaptive sliding-mode controller co-designed with the power circuit parameters. The design algorithm ensures battery protection against high-frequency transients that reduce lifespan, and provides compatibility with low-cost microcontrollers. Moreover, the continuous output current of the Zeta converter does not introduce current harmonics to the battery, the microgrid, or the load. The proposed solution is validated through an application example using PSIM electrical simulation software (version 2024.0), demonstrating superior performance in comparison with a classical cascade PI structure.