An Investigation of Harmonic Fingerprints by using Artificial Neural Network in Distribution Grid

Conference: NEIS 2019 - Conference on Sustainable Energy Supply and Energy Storage Systems
09/19/2019 - 09/20/2019 at Hamburg, Deutschland

Proceedings: NEIS 2019

Pages: 5Language: englishTyp: PDF

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Song, Xinya; Cai, Hui; Zeng, Y. L.; Jiang, Teng; Schlegel, Steffen; Westermann, Dirk (Power Systems Group, Technische Universit├Ąt Ilmenau, Germany)

This paper provides a new algorithm to enhance the observability of distribution grid by using artificial neural network (ANN) in a distribution grid. Each electrical device has their unique harmonic nature, which could be used as fingerprint for identification. Training with this characteristic and the corresponding power profile ena-bles the ANN to identify the electrical devices and estimate their power profiles. The training is based on massive harmonic measurement, which carry out with self-developed low voltage (LV) measurement unit with WESENS-adapter form A-EBERLE and medium voltage (MV) measurement unit with DEWESOFT. This algorithm is validated with a field-test with 34times LV Unit and 3times MV unit in center Germany.