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风电变流技术 ★ 5.0

基于非可通约分数阶混沌系统的独立风能系统安全运行

Secure operation of a stand-alone wind energy system based on an incommensurate fractional-order chaotic system

语言:

中文摘要

摘要 近年来,针对风能转换系统(如采用自激感应发电机(SEIG)的独立风能转换系统(SAWECS))的网络安全问题日益受到关注。尽管基于SEIG的SAWECS具有结构坚固、成本低、维护需求少以及可在变化风速下运行等优势,但其依赖有效的无功功率管理来维持输出电压的稳定性。随着现代技术在SAWECS中的不断集成,输出电压的控制变得愈发复杂,从而使系统更容易遭受网络攻击。为确保基于SEIG的SAWECS的网络安全,本文提出了一种新颖的方法——一种基于暗物质与暗能量(DM-DE)相互作用所衍生的混沌系统安全通信算法。该算法利用分数阶微积分提高混沌流的复杂性,从而增强安全通信的鲁棒性。通过详细的分析和仿真研究验证了所提方法的有效性,结果表明该方法能够有效维持系统的稳定性和安全性。随后,采用包含三相、400V、50Hz SEIG并带阻感负载的SAWECS对基于混沌的安全运行算法进行了测试与验证。实验结果表明,实验数据与仿真结果具有一致性。本研究证明,基于混沌系统的方法可用于提升可再生能源系统的网络安全水平。

English Abstract

Abstract Cybersecurity for wind energy conversion systems, such as Stand-Alone Wind Energy Conversion Systems (SAWECSs) that use Self-Excited Induction Generators (SEIGs), has been a growing area of focus recently. Despite their advantages such as robust structure, low cost, minimal maintenance, and the ability to operate at varying wind speeds , SEIG-based SAWECSs rely on effective reactive power management to maintain output voltage stability. As modern technologies become more integrated into SAWECS, controlling the output voltage becomes increasingly challenging, which makes the system more vulnerable to cyber-attacks. To ensure the cybersecurity of SEIG-based SAWECS, this study proposes a novel approach, a chaotic system-based secure communication algorithm derived from the interaction between dark matter and dark energy (DM-DE). This algorithm utilizes fractional calculus to increase the complexity of chaotic flows, thereby strengthening the robustness of secure communication. The effectiveness of the proposed approach is verified through detailed analyses and simulation studies, demonstrating its capability to maintain system stability and security. The chaos-based secure operation algorithm is then tested and validated using a SAWECS comprising a 3-phase, 400V, 50 Hz SEIG with resistive-inductive loads. It is observed that the experimental results are consistent with the simulation results. This work demonstrates that chaotic system-based approaches can be used to enhance the cybersecurity of renewable energy systems .
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SunView 深度解读

该分数阶混沌加密技术对阳光电源风电变流器及储能系统网络安全具有重要参考价值。文中针对自激感应发电机的无功功率管理和电压稳定控制问题,与ST系列PCS在独立微网模式下的控制挑战高度相关。混沌加密算法可应用于iSolarCloud平台与现场设备的安全通信,增强PowerTitan储能系统抗网络攻击能力。分数阶控制思想可启发GFM/VSG控制算法优化,提升新能源系统在弱电网下的稳定性与信息安全防护等级。