静态安全域约束的多区域大规模新能源接纳能力研究与应用

doi:10.11930/j.issn.1004-9649.202006038

摘要/Abstract

摘要： 随着中国风电、太阳能等新能源并网容量的迅速发展，大规模新能源接纳受到关注。提出一种多区域大规模新能源接纳能力评估方法，将电力系统静态安全域（steady-state security region，SSSR）定义在新能源多区域功率注入空间上，根据大规模新能源场站接入的地域性与资源特性，对每个区域定义一组新能源功率增长方向，在一维空间建立新能源接纳能力最优化数学模型，经最优潮流遍历不同区域组合而成的全系统新能源功率增长方向来搜索SSSR临界点，通过这些临界点构建超平面，以近似新能源多区域功率注入空间的SSSR边界，从而在多维空间评估多区域大规模新能源接纳能力。通过对某省级1975节点实际电网进行计算，结果表明：提出的多区域大规模新能源接纳能力的计算方法是实用有效的。

关键词: 新能源, 接纳能力, 静态安全域, 最优潮流

Abstract: With the rapid increase in the installed capacities of wind power and PV power in China, large-scale new energy integration has received wide attention. An evaluation method for multi-area large-scale new energy integration capability is proposed in this paper. The steady-state security region (SSSR) of a power system is defined in the multi-area new energy power injection space. According to the regional and resource characteristics of the large-scale new energy station access, a group of power growth directions is defined for each region, and a mathematical optimization model of new energy integration capability is built in one-dimension space. The optimal power flow traverses the new energy power growth directions of the whole system composed of different regions to search for the critical points of SSSR. Based on these critical points, a hyperplane is constructed to approximate the SSSR boundary of multi-area new energy power injection space, so as to evaluate the multi-area large-scale new energy integration capability in multi-dimensional space. Numerical results of a provincial 1975-bus system are presented, proving that the proposed model is practical and effective.

Key words: new energy, integration capability, steady-state security region, optimal power flow

苏宜强, 刘盛松. 静态安全域约束的多区域大规模新能源接纳能力研究与应用[J]. 中国电力, 2021, 54(9): 165-175.

SU Yiqiang, LIU Shengsong. Research and Application of Multi-Area Large-Scale New Energy Integration Capability with Steady-State Security Region Constraints[J]. Electric Power, 2021, 54(9): 165-175.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202006038

https://www.electricpower.com.cn/CN/Y2021/V54/I9/165

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