A Hierarchical Self-Adaptive Data-Analytics Method for Real-Time Power System Short-Term Voltage Stability Assessment

As one of the most complex and largest dynamic industrial systems, a modern power grid envisages the wide-area measurement protection and control (WAMPAC) system as the grid sensing backbone to enhance security, reliability, and resiliency. However, based on the massive wide-area measurement data, h...

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Bibliographic Details
Published in:IEEE transactions on industrial informatics 2019-01, Vol.15 (1), p.74-84
Main Authors: Zhang, Yuchen, Xu, Yan, Dong, Zhao Yang, Zhang, Rui
Format: Article
Language:English
Subjects:
Adaptive systems
Analytics
Data analysis
Data-analytics
Dynamic stability
Electric potential
ensemble learning
extreme learning machine
Indexes
Mathematical programming
multiobjective programming
Multiple objective analysis
Power system dynamics
Power system stability
Real time
Real-time systems
Reliability
short-term voltage stability (STVS)
smart grid
Stability
Stability analysis
Stability criteria
Voltage control
Voltage stability
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Summary:As one of the most complex and largest dynamic industrial systems, a modern power grid envisages the wide-area measurement protection and control (WAMPAC) system as the grid sensing backbone to enhance security, reliability, and resiliency. However, based on the massive wide-area measurement data, how to realize real-time short-term voltage stability (STVS) assessment is an essential yet challenging problem. This paper proposes a hierarchical and self-adaptive data-analytics method for real-time STVS assessment covering both the voltage instability and the fault-induced delayed voltage recovery phenomenon. Based on a strategically designed ensemble-based randomized learning model, the STVS assessment is achieved sequentially and self-adaptively. Besides, the assessment accuracy and the earliness are simultaneously optimized through the multiobjective programming. The proposed method has been tested on a benchmark power system, and its exceptional assessment accuracy, speed, and comprehensiveness are demonstrated by comparing with existing methods.
ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2018.2829818