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首页> 外文期刊>International review of automatic control >Positive Sequence Based Catastrophe Theory Voltage Stability Index to Analyzed the Voltage Stability Index in the Unbalanced Radial Distribution Systems
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Positive Sequence Based Catastrophe Theory Voltage Stability Index to Analyzed the Voltage Stability Index in the Unbalanced Radial Distribution Systems

机译：基于正序列的突变理论电压稳定指数分析不平衡径向分布系统中的电压稳定指数

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摘要

This paper presents a new method to obtain a voltage stability index for unbalanced radial distribution system. Voltage stability index (VSI) is used only for balanced radial distribution system. By using the sequence component, the unbalanced in distribution system could be simplified into a single-phase system. From the positive and negative sequence value, the voltage stability index for unbalanced distribution system can be obtained easily. The IEEE 15 bus single phase test systems which is modified into three phase balanced system, and the Surabaya Utara 20 kV three-phase radial distribution system are used to verify the sequence based on Catastrophe theory VSI sequence method. The results show that voltage stability index ranking by using negative and positive sequences based on Catastrophe theory VSI is exactly the same with single-phase simulation. This method also has less execution time than the sequence based VRI and sequence based VSI methods.
机译：本文提出了一种获取不平衡径向配电系统电压稳定指标的新方法。电压稳定指数（VSI）仅用于平衡径向配电系统。通过使用顺序分量，可以将配电系统中的不平衡简化为单相系统。从正负序值可以很容易地获得不平衡配电系统的电压稳定性指标。将IEEE 15总线单相测试系统修改为三相平衡系统，并使用泗水Utara 20 kV三相径向配电系统，基于巨灾理论VSI顺序法对顺序进行验证。结果表明，基于突变理论VSI的正负序电压稳定指数排序与单相仿真完全相同。与基于序列的VRI和基于序列的VSI方法相比，此方法的执行时间也更少。

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