NDLI: Risk-based many-objective configuration of power system fault current limiters utilising NSGA-III

Content Provider	IET Digital Library
Author	Guo, Chao Ye, Chengjin Ding, Yi Lin, Zhenzhi Wang, Peng
Abstract	The fault current limiter (FCL) has been envisaged as a feasible solution to defend against out-of-range short-circuit currents (SCCs) in power systems. However, the existing studies mainly sited and sized FCLs under deterministic fault scenarios. Moreover, the influences of FCLs on power systems are complex including dynamic aspects, which makes it extremely difficult to configure FCLs optimally. This paper proposes a risk-based many-objective FCL configuration framework. Specifically, a data-driven Proportional Hazard Model (PHM) is developed to evaluate the nodal long-term short-circuit probability considering equipment aging, weather statistics, and surrounding conditions. The risks in terms of out-of-range SCC, abnormal voltage sag, and transient instability are formulated as the objective functions of the FCL configuration model, as well as the overall FCL investment. The time-domain dynamic response process of FCLs is considered in both the SCC limiting and the transient stability simulation process, mainly in the form of a time-varying resistance. The state-of-the-art NSGA-III is deployed to search the Pareto-optimal FCL configuration solutions of the established many-objective FCL configuration problem. The numerical results verify that the risk-based model configures FCLs more economically with a 7.5% decrease of average FCL investment compared with the deterministic model.
Starting Page	5646
Ending Page	5654
Page Count	9
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 23, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/23
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2020.0482
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-09-18
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Abnormal Voltage Sag Average FCL Investment Control of Electric Power System Data-driven Proportional Hazard Model Deterministic Fault Scenarios Deterministic Model Diversified Function Eastern China Grid Data Equipment Ageing Fault Current Limiters FCL Configuration Model Genetic Algorithm Harmonics IEEE 39-bus System Many-objective FCL Configuration Problem Nodal Long-term Short-circuit Probability Nondominated Sorting Genetic Algorithm III NSGA-III Objective Function Optimisation Technique Out-of-range SCC Pareto Optimisation Pareto-optimal FCL Configuration Solutions Power Grid Power Supply Quality Power System Control Power System Fault Power System Fault Current Limiters Power System Transient Stability Protection Apparatus Risk-based Many-objective Configuration Risk-based Many-objective FCL Configuration Framework Risk-based Model SCC Limiting Short-circuit Fault Stability in Control Theory Surrounding Condition Time-domain Dynamic Response Process Time-varying Resistance Transient Instability Transient Stability Simulation Process Weather Statistics
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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