基于网络安全稳定约束的新能源消纳能估方法

孟高军; 张峰; 徐晓轶; 张仰飞; 吉宇

doi:10.19912/j.0254-0096.tynxb.2022-1053

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (11) : 505-512. DOI: 10.19912/j.0254-0096.tynxb.2022-1053

基于网络安全稳定约束的新能源消纳能估方法

孟高军¹, 张峰¹, 徐晓轶², 张仰飞¹, 吉宇¹

作者信息 +

NEW ENERGY CONSUMPTION CAPACITY ASSESSMENT METHOD BASED ON NETWORK SECURITY AND STABILITY CONSTRAINTS

Meng Gaojun¹, Zhang Feng¹, Xu Xiaoyi², Zhang Yangfei¹, Ji Yu¹

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文章历史 +

摘要

多直流馈入和新能源高比例渗透的背景下,考虑新能源出力随机性以及系统网络安全约束,准确评估电网新能源最大消纳能力,对促进新能源消纳具有重要意义。因此,该文提出一种基于网络安全稳定约束的新能源最大消纳能力评估方法。综合考虑发电机组调节特性、多直流调节功率等因素对新能源最大消纳能力的影响,采用概率分布离散模型描述新能源分布的随机性,建立以电网静态电压稳定和发电机出力等约束的新能源消纳能力计算模型,并通过离散概率运算,实现新能源并网多场景状态模拟,求解新能源最大消纳功率的离散分布,进而计算多场景运行的新能源最大消纳容量。最后,利用改进IEEE 39节点系统进行多场景仿真分析,仿真结果表明,所提方法有效反映多场景运行状态下新能源消纳能力。

Abstract

Given the context of multi-infeed DC power and the high percentage penetration of renewable energy sources, accurately evaluating the maximum absorptive capacity of power grid renewable energy sources, taking into account the randomness of renewable energy output and the security constraints of the system network, is of great significance for promoting the absorption of renewable energy sources. To address these challenges, this paper proposes a method for evaluating the maximum absorption capacity of new energy based on network security and stability constraints. The paper considers the impact of generator set regulation characteristics, multi-DC regulation power, and other factors on the maximum absorption capacity of new energy. A probability distribution discrete model is employed to describe the random nature of new energy distribution. A calculation model of new energy consumption capacity constrained by static voltage stability of the power grid and generator output is established. The proposed model establishes a calculation framework for new energy absorption capacity constrained by the static voltage stability of the power grid and generator output. By calculating discrete probability, the model enables the realization of a new energy grid-connected multi-scene state simulation, thereby solving the discrete distribution of the maximum absorption power of new energy and then making out this maximum absorption capacity of new energy under multiple scenarios of operation. An improved IEEE 39-node system is adopted in this paper for multi-scene simulation analysis, whose results indicate that the proposed new energy absorption capacity calculation method based on network security and stability constraints can effectively reflect the new energy absorption capacity under multiple scenarios.

导出引用

孟高军, 张峰, 徐晓轶, 张仰飞, 吉宇. 基于网络安全稳定约束的新能源消纳能估方法[J]. 太阳能学报. 2023, 44(11): 505-512 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1053

Meng Gaojun, Zhang Feng, Xu Xiaoyi, Zhang Yangfei, Ji Yu. NEW ENERGY CONSUMPTION CAPACITY ASSESSMENT METHOD BASED ON NETWORK SECURITY AND STABILITY CONSTRAINTS[J]. Acta Energiae Solaris Sinica. 2023, 44(11): 505-512 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1053

中图分类号： TM615

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