新型配电网光伏承载能力评估与能量管理策略研究

Review on Photovoltaic Hosting Capacity Evaluation and Energy Management Strategies of New Distribution Networks

通过能源结构转型、打造新能源供给消纳体系是实现双碳目标的必经之路,而随着分布式光伏发电在配电网中的占比不断提高、需求侧用户自主性增强,其在需求侧引入的不确定性和源荷二重性给电力系统的安全稳定经济运行带来了极大的挑战。明确分布式光伏的接入容量和规模是确保新型配电网安全运行的前提,在此基础上实现对不确定性的精准建模,在多时间尺度上进行能量管理是保证电力系统稳定经济运行的关键。以高比例分布式光伏配电网为研究主体,从承载能力和多时间尺度的能量管理切入进行系统性综述。首先,对配电网承载能力的定义,以及在评估、确定和改善方面的研究进行了详细综述。其次,分别阐述了不同时间尺度下考虑分布式光伏不确定性特征的建设规划、调度优化以及数学模型。最后总结现有研究的关键问题,并对未来发展趋势和面临的挑战进行展望。

Through the transformation of energy construction,create new energy supply given system is the only way to achieve double carbon,and with the distributed photovoltaic are constantly improve the proportion of distribution network,the user demand side enhanced autonomy,in the introduction of the uncertainty of demand side and the source charge due to the security and stability of economic operation of power system has brought great challenges.Clarifying the access capacity and scale of distributed photovoltaic is the premise to ensure the safe operation of the new power system.On this basis,accurate modeling of uncertainty is realized,and energy management on multiple time scales is the key to ensure the stable and economic operation of the power system.The research focuses on the high proportion of distributed photovoltaic distribution network and systematically reviews the load-carrying capacity and multi-time scale energy management.Firstly,the definition of distribution network carrying capacity and the research on evaluation,determination and improvement are introduced in detail.Secondly,the construction planning,scheduling optimization and mathematical model considering the uncertainty of distributed photovoltaic in different time scales are described.Finally,the key issues of existing research are summarized and the future development trends and challenges are prospected.