| 引用本文: | 张宇童,汪樟,雷怡菲,等.考虑自组织临界条件的区域电网风电极限渗透功率评估方法[J].电力系统保护与控制,2019,47(2):9-15.[点击复制] |
| ZHANG Yutong,WANG Zhangyao,LEI Yifei,et al.An evaluation method for the maximum penetration of wind power of district power grid based on the self-organization criticality[J].Power System Protection and Control,2019,47(2):9-15[点击复制] |
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| 摘要: |
| 随着电力系统中风电装机容量的不断增长，如何评估已有区域电网的最大风电极限渗透功率成为了一个重要问题。通过分析复杂电力系统的自组织临界性，提出了基于区间最优潮流的连锁故障模型来评估系统风电极限接入容量的新方法。该方法将风电出力的波动性建模为区间数，通过区间连锁故障模型模拟在风电比例不断增长情况下的电网连锁故障概率与连锁故障规模的规律，获得电网出现自组织临界特性时的风电渗透平均功率，并以此作为电网的最大风电渗透容量。通过在IEEE30节点系统和IEEE118节点系统上的仿真实验，验证了该方法可合理地测量电力系统的极限风电接入容量。 |
| 关键词: 风能波动性 区间潮流 自组织临界 连锁故障 风险评估 |
| DOI：10.7667/PSPC201863 |
| 投稿时间：2018-06-21 |
| 基金项目:国家自然科学基金项目资助(51507056) |
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| An evaluation method for the maximum penetration of wind power of district power grid based on the self-organization criticality |
| ZHANG Yutong,WANG Zhangyao,LEI Yifei,WU Dongshao,CHENG Renli,HUA Dong |
| (Shenzhen Power Supply Bureau Co., Ltd., Shenzhen 518001, China;College of Electrical and Information Engineering, Hunan University, Changsha 410012, China;School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China) |
| Abstract: |
| With the increase of installation of wind energy in power systems, it has become a great challenge to evaluate the maximum wind energy limit penetration of a given regional power grid. By analyzing the self-organized criticality of complex power systems, a method based on interval Optimal Power Flow (OPF) cascading failure model to evaluate the maximum wind penetration is proposed. This method models the wind power output uncertainty as an interval number to form the interval cascading failure model based on interval OPF of power grids. With the increasing wind power penetration, the rules between the probability and scale of cascading failures can be discovered. The maximum wind power penetration is determined by the average of wind power when the power grid exhibits the self-organized criticality. Simulation experiments on IEEE 30-bus system and IEEE 118-bus system verify that the proposed method is a reasonable quantitative measurement method for assessing the wind power penetration limit of a power system. This work is supported by National Natural Science Foundation of China (No. 51507056). |
| Key words: wind energy penetration interval power flow self-organized criticality cascading failures risk metrics |
