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Online characterization of interharmonics and harmonics of AC electric arc furnaces by multiple synchronous reference frame analysis
Date
2015-10-18
Author
Uz Loğoğlu, Eda
Salor, Özgül
Ermiş, Muammer
Metadata
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In this paper, a multiple synchronous reference frame (MSRF) analysis framework is developed to determine the positive- and negative -sequence components of all interharmonic and harmonic currents produced by alternating current electric arc furnace (AC EAF) installations, which can be considered as balanced but asymmetrical three-phase, three -wire loads on the power system. The aim of developing the MSRF analysis framework is two -fold; deep understanding of the EAF characteristics, and fast and accurate generation of reference signals to the controllers of the advanced technology compensation systems such as active power filters (APF), synchronous static compensators (STATCOM), energy storage systems (ESS), and etc., which may successfully compensate interharmonics, harmonics, and flicker. Online characterization of interharmonics and harmonics by MSRF analysis utilizes continuously measured line currents and line voltages on the medium voltage side of the EAF transformer at a sampling rate of 25.6 kHz per data channel. It has been shown by off-line computations that compensation of the sequence components of interharmonics and harmonics of the EAF currents obtained by the proposed framework, reduces the short term flicker values at the point of common coupling by up to ten fold. The proposed MSRF analysis framework has been successfully verified by comparing the frequency spectrums of the EAF currents with Fourier analysis results based on one -cycle sliding windows of 10 cycle duration.
Subject Keywords
Electric arc furnace (EAF)
,
Harmonics
,
Interharmics
,
Multiple synchronous reference frame (MSRF)
,
Power quality (PQ)
URI
https://hdl.handle.net/11511/72553
http://apps.webofknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&qid=22&SID=E1vByhNuYSpaurrNRRE&page=1&doc=2
Conference Name
51st Annual Meeting of the IEEE-Industry-Applications-Society (IAS) (11 - 22 Ekim 2015)
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
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Online Characterization of Interharmonics and Harmonics of AC Electric Arc Furnaces by Multiple Synchronous Reference Frame Analysis
Uz-Logoglu, Eda; Salor, Ozgul; Ermiş, Muammer (2016-05-01)
In this paper, a multiple synchronous reference frame (MSRF) analysis framework is developed to determine the positive-and negative-sequence components of all interharmonic and harmonic currents produced by alternating current electric arc furnace (AC EAF) installations, which can be considered as balanced but asymmetrical three-phase, three-wire loads on the power system. The aim of developing the MSRF analysis framework is twofold; deep understanding of the EAF characteristics, and fast and accurate gener...
Exponential smoothing of multiple reference frame components with GPUs for real-time detection of time-varying harmonics and interharmonics of EAF currents
Balouji, Ebrahim; SALOR DURNA, ÖZGÜL; Ermiş, Muammer (2017-10-01)
In this research work, a multiple synchronous reference frame (MSRF) based analysis method used together with exponential smoothing (ES) to accurately obtain the time-varying harmonics and interharmonics of electric arc furnace (EAF) currents, is proposed. The proposed method has been implemented on NVIDIA Geforce GTX 960 graphics card for the parallel processing of all harmonics and interharmonics so that real-time processing of the EAF currents obtained from a measurement point of the electricity transmis...
Exponential Smoothing of Multiple Reference Frame Components With GPUs for Real-Time Detection of Time-Varying Harmonics and Interharmonics of EAF Currents
Balouji, Ebrahim; Salor, Ozgul; Ermiş, Muammer (2018-11-01)
In this research work, a multiple synchronous reference frame (MSRF)-based analysis method, used together with exponential smoothing (ES) to accurately obtain the time-varying harmonics and interharmonics of electric arc furnace (EAF) currents, is proposed. The proposed method has been implemented on NVIDIA Geforce GTX 960 graphics card for the parallel processing of all harmonics and interharmonics so that real-time processing of the EAF currents obtained from a measurement point of the electricity transmi...
Real-Time Detection of Interharmonics and Harmonics of AC Electric Arc Furnaces on GPU Framework
Uz-Logoglu, Eda; Salor, Ozgul; Ermiş, Muammer (2019-11-01)
In this paper, a method based on the multiple synchronous reference frame analysis is recommended and implemented to detect time-varying harmonics and interharmonics of rapidly fluctuating asymmetrical industrial loads. The experimental work has been carried out on a typical three-phase alternating current arc furnace installation. In the recommended method, the reference frame is rotated in both directions at speeds corresponding to the positive and negative sequences of all harmonics and all interharmonic...
Real-Time Detection of Interharmonics and Harmonics of AC Electric Arc Furnaces on GPU Framework
Uz-Logoglu, Eda; Salor, Ozgul; Ermiş, Muammer (2017-10-05)
In this paper, a method based on the multiple synchronous reference frame (MSRF) analysis is recommended and implemented to detect time-varying harmonics and interharmonics of rapidly fluctuating asymmetrical industrial loads. The experimental work has been carried out on a typical three-phase alternating current arc furnace (AC EAF) installation. In the recommended method, the reference frame is rotated in both directions at speeds corresponding to the positive and negative sequences of all harmonics and a...
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E. Uz Loğoğlu, Ö. Salor, and M. Ermiş, “Online characterization of interharmonics and harmonics of AC electric arc furnaces by multiple synchronous reference frame analysis,” presented at the 51st Annual Meeting of the IEEE-Industry-Applications-Society (IAS) (11 - 22 Ekim 2015), Addison, TX, USA, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72553.
