Impact of Momentary Cessation Voltage Level in Inverter-Based Resources on Increasing the Short Circuit Current
Impact of Momentary Cessation Voltage Level in Inverter-Based Resources on Increasing the Short Circuit Current
复制标题
基于逆变器的资源中的瞬时停止电压水平对增加短路电流的影响
作者：
Namki Choi;Bohyun Park;Hwanhee Cho;Byongjun Lee
本研究分析了不同的瞬时停止（MC）电压水平的逆变器为基础的资源（IBR）的短路电流的影响。为分析IBR MC功能对短路电流的影响，提出了一种反映其故障特征的故障电流计算改进IBR模型和MC对短路电流影响的分析方案。基于所提出的方法，作者进行了案例研究，从韩国电力公司（KEPCO）的规划数据。通过在改变MC电压的同时对故障电流进行筛选，研究了MC对位于KEPCO系统西南侧的IBR的影响。通过分析MC电压水平对短路电流的影响，提出了使故障电流不超过断路器容量所需的最小MC电压水平。试验结果表明，当IBRs将MC电压水平调整到高于最低MC电压水平时，系统短路电流不会超过CB容量。
This study analyzed the impact of varying the momentary cessation (MC) voltage level on the short circuit current of inverter-based resources (IBRs). To analyze the impact of the IBR MC function on the short circuit current, this paper proposes an advanced IBR model for fault current calculation to reflect its fault characteristics and a scheme for analyzing the influence of MC on the short circuit current. Based on the proposed methods, the authors conducted case studies using planning data from the Korea Electric Power Corporation (KEPCO). The influence of MC was investigated on the IBRs located at the southwest side of the KEPCO systems by screening the fault currents while varying the MC voltage. This paper demonstrates that the minimum MC voltage level needed for the fault current not to exceed the circuit breaker (CB) capacity can be proposed through analyzing the impact of MC voltage level on the short circuit current. The test results based on the proposed scheme showed that the short circuit current to power systems could not violate CB capacity if IBRs adjusted the MC voltage level higher than the lowest MC voltage level.
DOI：
10.1109/pes.2010.5589981
发表时间：
2010-07
期刊：
IEEE PES General Meeting
影响因子：
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作者：
C. Plet;M. Graovac;Tim C. Green;R. Iravani
通讯作者：
C. Plet;M. Graovac;Tim C. Green;R. Iravani