Journal ArticleDOI
A Systematic Approach for Dynamic Security Assessment and the Corresponding Preventive Control Scheme Based on Decision Trees
Chengxi Liu,Kai Sun,Zakir Hussain Rather,Zhe Chen,Claus Leth Bak,Paul Bach Thøgersen,Per Lund +6 more
- Vol. 29, Iss: 2, pp 717-730
Reads0
Chats0
TLDR
This paper proposes a decision tree (DT)-based systematic approach for cooperative online power system dynamic security assessment (DSA) and preventive control that trains two contingency-oriented DTs on a daily basis by the databases generated from power system simulations.Abstract:
This paper proposes a decision tree (DT) based systematic approach for cooperative online power system dynamic security assessment (DSA) and preventive control. This approach adopts a new methodology that trains two contingency oriented DTs on daily basis by the databases generated from power system simulations. Fed with real-time wide area measurements, one DT about measurable variables is employed for online DSA to identify potential security issues and the other DT about controllable variables provides online decision support on preventive control strategies against those issues. A cost effective algorithm is adopted in this proposed approach to optimize the trajectory of preventive control. The paper also proposes an importance sampling algorithm on database preparation for efficient DT training for power systems with high penetration of wind power and distributed generation. The performance of the approach is demonstrated on a 400-bus, 200-line operational model of western Danish power system.read more
Citations
More filters
Journal ArticleDOI
Synchrophasor Measurement Technology in Power Systems: Panorama and State-of-the-Art
TL;DR: This bibliography will aid academic researchers and practicing engineers in adopting appropriate topics and will stimulate utilities toward development and implementation of software packages.
Journal ArticleDOI
Big data analytics in smart grids: a review
TL;DR: The characterizations of big data, smart grids as well as huge amount of data collection are discussed as a prelude to illustrating the motivation and potential advantages of implementing advanced data analytics in smart grids.
Journal ArticleDOI
Probabilistic Framework for Transient Stability Assessment of Power Systems With High Penetration of Renewable Generation
TL;DR: In this article, a probabilistic framework for transient stability assessment (TSA) of power systems with high penetration of renewable generation is introduced. But the proposed framework facilitates robust assessment of transient stability of uncertain power system with reduced inertia.
Journal ArticleDOI
Online Identification of Power System Dynamic Signature Using PMU Measurements and Data Mining
Tingyan Guo,Jovica V. Milanovic +1 more
TL;DR: In this article, a two-stage methodology for online identification of power system dynamic signature using phasor measurement unit (PMU) measurements and data mining is proposed, which firstly applies hierarchical clustering to define patterns of unstable dynamic behavior of generators, and then applies different multiclass classification techniques, including decision tree, ensemble decision tree and multiclass support vector machine to identify characterized unstable responses.
Journal ArticleDOI
A Hierarchical Self-Adaptive Data-Analytics Method for Real-Time Power System Short-Term Voltage Stability Assessment
TL;DR: 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 and shows exceptional assessment accuracy, speed, and comprehensiveness.
References
More filters
Journal ArticleDOI
Random Forests
TL;DR: Internal estimates monitor error, strength, and correlation and these are used to show the response to increasing the number of features used in the forest, and are also applicable to regression.
Journal ArticleDOI
Classification and Regression Trees.
Book
Classification and regression trees
TL;DR: The methodology used to construct tree structured rules is the focus of a monograph as mentioned in this paper, covering the use of trees as a data analysis method, and in a more mathematical framework, proving some of their fundamental properties.
Journal ArticleDOI
An Online Dynamic Security Assessment Scheme Using Phasor Measurements and Decision Trees
TL;DR: The proposed scheme is able to identify key security indicators and give reliable and accurate online dynamic security predictions and is tested on a 2100-bus, 2600-line, 240-generator operational model of the Entergy system.
Journal ArticleDOI
Decision Tree-Based Online Voltage Security Assessment Using PMU Measurements
Ruisheng Diao,Kai Sun,Vijay Vittal,R.J. O'Keefe,M.R. Richardson,Navin Bhatt,D. Stradford,S. Sarawgi +7 more
TL;DR: In this article, an online voltage security assessment scheme using synchronized phasor measurements and periodically updated decision trees (DTs) is presented. But the DTs are first trained offline using detailed voltage security analysis conducted using the past representative and forecasted 24-h ahead operating conditions.