| 引用本文: | 刘连光,秦晓培,葛小宁.基于U-I曲线的单相自耦变GIC无功损耗算法[J].电力自动化设备,2015,35(12): |
| LIU Lianguang,QIN Xiaopei,GE Xiaoning.GIC reactive power loss calculation based on U-I curve for single-phase autotransformer[J].Electric Power Automation Equipment,2015,35(12): |
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| 摘要: |
| 准确计算整个电网的地磁感应电流（GIC）无功扰动非常困难。针对超特高压电网广泛采用的单相自耦变压器，提出了一种基于变压器U-I曲线和铭牌参数计算变压器GIC无功损耗的方法，算法利用厂家提供的U-I曲线和铭牌参数建立ψ-i曲线解析模型，求取变压器的GIC无功扰动增量，适用于地磁暴影响评估的工程计算。算例分析结果验证了算法的有效性。 |
| 关键词: U-I曲线 ψ-i曲线 单相自耦变压器 地磁感应电流 无功损耗 |
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| 基金项目:国家自然科学基金资助项目（51177045）；国家高技术研究发展计划（863计划）资助项目（2012AA121005） |
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| GIC reactive power loss calculation based on U-I curve for single-phase autotransformer |
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LIU Lianguang1, QIN Xiaopei1,2, GE Xiaoning1
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1.State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources，
North China Electric Power University，Beijing 102206，China;2.State Grid Hebei Shexian
Power Supply Company，Shexian 056400，China
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| Abstract: |
| Since it is very hard to accurately calculate the reactive power turbulence caused by the GIC （Geomagnetically Induced Current） for the whole power grid，a method is proposed to calculate the GIC reactive power loss of single-phase autotransformer widely used in UHV and EHV power grid，which builds the analytic model of ψ-i curve based on its U-I curve and nameplate parameters to calculate the reactive power increment caused by the GIC. The proposed algorithm is suitable for the engineering calculation to assess the GIC influence and its effectiveness is validated by case study. |
| Key words: U-I curve ψ-i curve single-phase autotransformer geomagnetically induced current reactive power loss |
