Voltage Stability Analysis of Multi-microgrid Clusters

Li Wang, Li Wei Chen, Yu Wei Liou, Ching Chuan Tseng, Hazlie Mokhlis, Kein Huat Chua, Manoj Tripathy

Research output: Contribution to journalConference articlepeer-review


This paper analyses the impact of microgrid clusters on the voltage stability of the IEEE 14-bus multi-machine power system. To simulate the realistic operation of microgrids, a hybrid renewable-energy system consisting primarily of wind and PV power generation is incorporated into the original microgrid architecture. The response of the grid's voltage stability is observed under N-0, N-1, and N-2 contingency. Static voltage stability analysis is performed by observing the system's load margin using PV curves under different fault scenarios, determining whether the system is at risk of voltage collapse. The power flow distribution and line efficiencies are also examined. Furthermore, a voltage stability index is introduced to quantify the stability of each bus, providing a more intuitive understanding of the voltage-stability differences under different fault conditions. Regarding dynamic voltage-stability analysis, this paper conducts real-time simulations of the response of load buses under various fault scenarios. By comparing static and dynamic analyses, the voltage stability of the studied system can be observed from different perspectives.

Original languageEnglish
Pages (from-to)60-61
Number of pages2
JournalIET Conference Proceedings
Issue number35
Publication statusPublished - 2023
Event2023 IET International Conference on Engineering Technologies and Applications, ICETA 2023 - Yunlin, Taiwan
Duration: 2023 Oct 212023 Oct 23

All Science Journal Classification (ASJC) codes

  • General Engineering


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