引用本文:皇甫宜耿,郭亮,梁艳,李飞,李钱.一种鲁棒双向直流变换装置的高阶滑模控制器(英文)[J].控制理论与应用,2019,36(3):389~398.[点击复制]
HUANGFU Yi-geng,GUO Liang,LIANG Yan,LI Fei,LI Qian.A high-order sliding mode controller for a robust bi-directional DC–DC converter[J].Control Theory and Technology,2019,36(3):389~398.[点击复制]
一种鲁棒双向直流变换装置的高阶滑模控制器(英文)
A high-order sliding mode controller for a robust bi-directional DC–DC converter
摘要点击 2546  全文点击 1155  投稿时间：2018-06-23  修订日期：2019-04-10
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DOI编号  10.7641/CTA.2019.80464
  2019,36(3):389-398
中文关键词  双向变换器，鲁棒性，高阶滑模算法，Super-Twisting，李雅普诺夫理论
英文关键词  Bidirectional converter, robustness, high order sliding mode algorithm, Super-Twisting, Lyapunov theory
基金项目  国家自然科学基金, 西北工业大学研究生创意种子基金
作者单位E-mail
皇甫宜耿 西北工业大学 yigeng@nwpu.edu.cn 
郭亮* 西北工业大学 liang_guo@mail.nwpu.edu.cn 
梁艳 西北工业大学  
李飞 西北工业大学  
李钱 西北工业大学  
中文摘要
      随着新能源发电技术的发展，双向直流变换器（BDC）因其能量双向流动的特点而被广泛应用于航空航天、充放电控制和电动汽车等领域。由于在上述应用工况下，能源间歇性输入、负载随机性扰动、功率流向切换均会对系统母线电压产生干扰，因此对控制器的鲁棒性要求较高。论文基于Super-Twisting高阶滑模算法，设计了一种互补PWM型双向直流变换器的双闭环强鲁棒控制系统。阐明了Super-Twisting相比传统PI控制在鲁棒性和快速性优势的根本性原因，并基于一种类二次型李雅普诺夫函数，给出系统稳定条件，尤其是给出了更精确的Super-Twisting算法收敛时间的估计值。此外，通过等效控制线性化内环控制，解决了变换器应用中由于内环与变换器的非线性特性所导致的外环非线性算法参数设计复杂的问题，使系统外环亦可方便地采用Super-Twisting非线性算法，进一步提升了系统的鲁棒性。本文基于dSPACE半物理平台构建控制器，结合硬件电路进行实物实验平台的搭建。通过与传统PI双闭环控制对比，分别对母线负载扰动和功率流向切换进行了测试。最后通过仿真和实验验证了本文所设计控制器的有效性。
英文摘要
      With the development of renewable energy technologies, bidirectional DC-DC converters (BDC) are increasing used in aerospace, navigation and electric vehicles, due to their bidirectional power flow characteristics. Usually, the DC bus voltage of renewable power system is seriously disturbed by the intermittent input of energy, random disturbance of the load, and power flow switching. Therefore, the robustness requirement of the system is high. In the paper, a robust control system was designed for a Buck-Boost BDC driven by complementary PWM, based on the double closed-loop Super-Twisting (ST) control, one kind of high order sliding mode control (HOSMC). In the paper, it is clarified the fundamental reason why Super-Twisting has the advantage of robustness and rapidity over traditional PI control. In addition, based on a quadratic-like Lyapunov function, the conditions for the system to converge in finite time are given. Particularly, the estimated value of the algorithm convergence time is also given. In addition, in the application of converter, the design of parameters of outer loop non-linear algorithm is complicated because of the non-linearity of inner loop and converter. By linearizing the inner loop control with equivalent control, the problem is solved and the robustness of the system is further improved. Moreover, the controller is realized based on the dSPACE semi-physical platform. Combining with the hardware circuits, the physical experiment platform is built. Finally, compared with traditional PI double-closed-loop control, the bus load disturbance and switching power flow were tested separately, and the effectiveness of the proposed controller in the paper is verified by simulation and experiment.