Research on Applicability of the Practical Transient Voltage Stability Criterion Based on Voltage Magnitude and Sag Duration

Voltage sags threaten the transient voltage stability of power systems. To evaluate the transient voltage stability, practical criteria based on voltage magnitude and sag duration are widely used in practical engineering. However, the applicability of practical criteria needs to be studied. In this paper, in a single-load system, a theoretical derivation was first made to obtain the transient voltage stability boundary. Then, by studying the relationship between the practical criteria and the stability boundary, the application scope of the practical criteria was determined. The application scope described in this paper can guide operators to use the practical criteria correctly and avoid misjudgment of the transient voltage stability as much as possible. Finally, a case study based on PSCAD/EMTDC is presented, and the simulation results verified the conclusions proposed in this paper.

[1]  Bing Liu,et al.  Quantitative assessments for transient voltage security , 1999 .

[2]  Hongbin Sun,et al.  A model and data hybrid-driven short-term voltage stability real-time monitoring method , 2020 .

[3]  Sohail Khan,et al.  Transient Stability in Oscillating Multi-Machine Systems Using Lyapunov Vectors , 2018, IEEE Transactions on Power Systems.

[4]  K. Kawabe,et al.  Analytical Method for Short-Term Voltage Stability Using the Stability Boundary in the P-V Plane , 2014, IEEE Transactions on Power Systems.

[5]  Jovica V. Milanović,et al.  Voltage Sag Estimation in Sparsely Monitored Power Systems Based on Deep Learning and System Area Mapping , 2018, IEEE Transactions on Power Delivery.

[6]  Thanh Long Vu,et al.  Lyapunov Functions Family Approach to Transient Stability Assessment , 2014, IEEE Transactions on Power Systems.

[7]  Chao Lu,et al.  Wordbook-based light-duty time series learning machine for short-term voltage stability assessment , 2017 .

[8]  Mariana Kamel,et al.  Development and Application of a New Voltage Stability Index for On-Line Monitoring and Shedding , 2018, IEEE Transactions on Power Systems.

[9]  Kai Sun,et al.  Voltage Stability Analysis of Power Systems With Induction Motors Based on Holomorphic Embedding , 2019, IEEE Transactions on Power Systems.

[10]  Yuchen Zhang,et al.  A Missing-Data Tolerant Method for Data-Driven Short-Term Voltage Stability Assessment of Power Systems , 2019, IEEE Transactions on Smart Grid.

[11]  Hongbin Sun,et al.  Practical short‐term voltage stability index based on voltage curves: definition, verification and case studies , 2018, IET Generation, Transmission & Distribution.

[12]  Chan-Nan Lu,et al.  A Voltage Sag Index Considering Compatibility Between Equipment and Supply , 2007, IEEE Transactions on Power Delivery.

[13]  Johan Driesen,et al.  Assessment of voltage sag indices based on scaling and wavelet coefficient energy analysis , 2013, 2013 IEEE Power & Energy Society General Meeting.

[14]  K. R. Niazi,et al.  Voltage stability assessment in power systems using line voltage stability index , 2018, Comput. Electr. Eng..

[15]  David J. Hill,et al.  Intelligent Time-Adaptive Transient Stability Assessment System , 2016, IEEE Transactions on Power Systems.

[16]  Y. Sekine,et al.  Cascaded voltage collapse , 1990 .

[17]  B. C. Kok,et al.  Evaluation for Voltage Stability Indices in Power System Using Artificial Neural Network , 2015 .