Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 68, Issue 9, Pages 8265-8273Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3013739
Keywords
Real-time systems; Signal processing; Support vector machines; Field programmable gate arrays; Power quality; Empirical mode decomposition; Field-programmable gate arrays (FPGA); islanding least square support vector machine; power quality (PQ) disturbance; signal processing technique
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Funding
- DST, New Delhi [SB/S3/EECE/089/2015]
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This study introduces the use of energy preserving ensemble empirical mode decomposition technique to detect evolving disturbances that occur in succession and classify them using least square support vector machine. The real-time implementation of techniques in field programmable gate array blocks for detection and classification of evolving disturbances is demonstrated. Comparison with existing techniques is also included in the discussion section.
In the past one decade, several signal processing techniques for detection and classification of single instant occurrence of both power quality (PQ) and islanding events have been reported. However, with the presence of several energy resources in the system, more critical conditions of PQ may arise due to transformer energizing, capacitor energizing, induction motor start, even fault at various locations of the network. As a result, evolving disturbances in a sequence may be observed. This study presents use of energy preserving ensemble empirical mode decomposition technique to detect evolving disturbances that occur in succession and classify them using least square support vector machine. The study is demonstrated on several cases of evolving disturbances as offline analysis for signals simulated in PSCAD/EMTDC and its analysis in MATLAB. Furthermore, novelty in study is established with real-time implementation of techniques in field programmable gate array blocks for detection and classification of evolving disturbances. Also, comparison with existing techniques is included in the discussion section.
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