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A Robust Data-Driven Approach for Adaptive Dynamic Load Modeling
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DOI：10.1109/TPWRS.2021.3137328.png)
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With the power system operating close to its stability margin, the increased penetration of renewable resources and loads with diverse characteristics, appropriate stability studies, and control decisions have become crucial. Due to the importance of accurate representation of aggregate loads in such studies, research interests for load modeling have increased. This paper puts forward a novel measurement-based load modeling approach that adapts itself based on the complex dynamics exhibited by the installed aggregate loads. The proposed approach primarily utilizes the collected measurements to gain insight regarding the dynamic trend in the measurements and subsequently determines the optimal order of an equivalent system or load model capable of effectively representing the aggregate load dynamics. An advanced signal pre-processing technique is employed, which effectively suppresses the noise and also preserves the transients present in the measurements. Afterward, an adaptive dynamic load model (ADLM) accurately represents the installed aggregate load. Lastly, the Refined Instrumental Variable (RIV) approach estimates the equivalent dynamic load model parameters. The results on a 2 bus and the IEEE 118 bus networks in DIgSILENT Powerfactory and a 7 bus network in Real-Time Digital Simulator (RTDS) reveal the efficacy of the proposed approach.
Keyword:
Load modeling
Power system dynamics
Aggregates
Voltage measurement
Adaptation models
Power measurement
Time measurement
Adaptive load modeling
data processing
measurement-based approach
singular value decomposition
parameter identification
期刊
IF:
7.2
论文数:
1.1W
被引数:
5.0W
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