| 引用本文: | 刘子文,唐渊,张勇军,陈冰.非理想工况下柔性直流配电系统建模与运行控制关键问题[J].电力自动化设备,2021,41(5): |
| LIU Ziwen,TANG Yuan,ZHANG Yongjun,CHEN Bing.Key issues of modeling and operation control of flexible DC distribution system under non-ideal conditions[J].Electric Power Automation Equipment,2021,41(5): |
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| 摘要: |
| 非理想工况下，柔性直流配电系统的建模与运行控制面临着来自经济高效的稳态运行需求和安全稳定的动态运行需求的双重挑战。系统分析非理想运行工况下柔性直流配电系统的运行特性，探讨合理的建模和分析控制技术，对于引导未来配电系统朝着更加经济高效和新能源友好接入的方向发展，具有重要的理论和现实意义。为此，结合国内外的研究现状和发展动态，深入分析了非理想工况下柔性直流配电系统的稳态建模与优化控制问题，以及外界随机扰动下的多时间尺度动态特征建模与稳定控制问题，指出了系统在非理想工况下建模与运行控制面临的主要难题。进一步地，从计及多重不确定性因素的系统建模与优化、非对称条件下系统不平衡分量交互特性建模与协同控制、外界随机扰动下系统多时间尺度动态特征机理建模与稳定控制等角度探索了柔性直流配电系统的技术发展方向，从而为柔性直流配电系统的建模与运行控制提供了研究思路。 |
| 关键词: 柔性直流配电系统 分布式电源 非理想工况 系统建模 运行控制 随机不确定性 |
| DOI：10.16081/j.epae.202105031 |
| 分类号:TM727;TM712 |
| 基金项目:国家自然科学基金资助项目(52007050)；中央高校基本科研业务费专项资金资助项目(B210202062) |
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| Key issues of modeling and operation control of flexible DC distribution system under non-ideal conditions |
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LIU Ziwen1, TANG Yuan2, ZHANG Yongjun2, CHEN Bing2
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1.College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China;2.Research Center of Smart Energy Technology, School of Electric Power, South China University of Technology, Guangzhou 510640, China
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| Abstract: |
| The modeling and operation control of flexible DC distribution system under non-ideal conditions face the dual challenges of both the steady-state operation demand of economy and high efficiency and the dynamic operation demand of safety and stability. The systematic analysis of operating characteristics for flexible DC distribution system under non-ideal conditions, and the discussion of reasonable modeling me-thods and analytical control techniques, have important theoretical and practical significance to guide the development of future distribution systems towards the direction of more economical, efficient and new energy friendly accessed. For that, along with the research status and development trends at home and abroad, the steady-state modeling and optimal control of flexible DC distribution system under non-ideal conditions, and the multi-time scale dynamic feature modeling and stability control under external stochastic disturbances are deeply analyzed, which points out the main issues of system modeling and operation control under non-ideal conditions. Furthermore, the technical development directions of flexible DC distribution system are explored from the aspects of system modeling and optimization with multiple uncertainties, system interactive feature modeling and collaborative control of unbalanced components under asymmetric conditions, and the multi-time scale dynamic characteristic mechanism modeling and stability control under external stochastic disturbances, which provides the research idea for the modeling and operation control of flexible DC distribution system. |
| Key words: flexible DC distribution system distributed power generation non-ideal conditions system mode-ling operation control stochastic uncertainty |
