| 引用本文: | 徐旖旎,康小宁,赵冲,郭明达,李更丰.基于GIC无功损耗严重度指标的电网地磁暴易损区识别方法[J].电力自动化设备,2019,39(11): |
| XU Yini,KANG Xiaoning,ZHAO Chong,GUO Mingda,LI Gengfeng.Identification method of power system geomagnetic storm vulnerable area based on GIC reactive power loss[J].Electric Power Automation Equipment,2019,39(11): |
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| 摘要: |
| 首先分析了电网在不同感应地电场强度和方向条件下各变电站无功损耗的变化规律，定义了变电站地磁感应电流(GIC)无功损耗严重度指标，指标本身仅对实际的无功损耗做归一化处理，未改变各变电站之间无功损耗大小的相对关系。基于该指标提出了给定系统中易受地磁暴灾害区域的识别方法，可以为地磁暴影响下的电网规划和系统调度人员的操作提供依据。最后以750 kV规划电网为例，验证了所提指标和方法的可行性。 |
| 关键词: 地磁暴 GIC无功损耗 GIC无功损耗严重度指标 概率分布 标准正态分布 |
| DOI：10.16081/j.epae.201909036 |
| 分类号:TM761 |
| 基金项目:国家重点研发计划资助项目(2016YFC0800100) |
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| Identification method of power system geomagnetic storm vulnerable area based on GIC reactive power loss |
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XU Yini, KANG Xiaoning, ZHAO Chong, GUO Mingda, LI Gengfeng
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Shaanxi Key Laboratory of Smart Grid, Xi’an Jiaotong University, Xi’an 710049, China
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| Abstract: |
| The change rules of reactive power loss of substations under different geo-electric intensity and direction are analyzed and then the GIC(Geomagnetically Induced Current) reactive power loss severity index of substation is defined. The index only normalizes the actual reactive power losses and does not change the relative relationship of reactive power loss among substations. Based on the index, an identification method for the areas susceptible to geomagnetic storms in a given system is proposed, which can provide a basis for grid planning and operation under the influence of geo-magnetic storms. Finally, a planned 750kV power system is taken as an example to verify the feasibility of the proposed index and algorithm. |
| Key words: geomagnetic storm GIC reactive power loss GIC reactive power loss severity index probability distribution standard normal distribution |
