Aina Syahira Amran, N. F. Ab Aziz, Anis Adiba Zawawi, Z. M. Yasin, N. A. Salim
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引用次数: 0
Abstract
Geomagnetic induced current (GIC) caused by geomagnetic disturbance (GMD) can be a serious threat to a stable electrical power grid operation. GIC that is induced in the earth magnetic field flows through the neutrals of grounded-wye transformers may lead to increasing reactive power consumption which can result to voltage collapse. Therefore, it is important to study the evaluation of this event on the electrical power grid. This paper presents the analysis of GIC modelling and calculation in a 4 bus test case system using Power World Simulator. The value of calculated GIC using Power World are validated and compared with theoretical using nodal analysis method. Based on the study conducted, it is found that the geomagnetic storm magnitude and direction in degrees can affect the GIC values.
地磁扰动引起的地磁感应电流严重威胁着电网的稳定运行。在地磁场流过接地变压器中性点时产生的GIC可能导致无功功率增加，从而导致电压崩溃。因此，研究该事件对电网的影响评估具有重要意义。本文介绍了利用Power World Simulator对一个4总线测试用例系统进行GIC建模和计算的分析。采用节点分析法对Power World计算的GIC值进行了验证，并与理论值进行了比较。研究发现，地磁风暴的震级和方向对GIC值有一定的影响。
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