A Novel Single-Phase Reactive Current Detection Algorithm Based on Fast Orthogonal Signal Generator and Enhanced Moving Average Filter

Liansong Xiong, Xiaokang Liu, Yixin Zhu, Zhao Xu, Ping Yang and Hanliang Song
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Liansong Xiong: School of Automation, Nanjing Institute of Technology, Nanjing 211167, China
Xiaokang Liu: Department of Electronics, Information and Bioengineering, Politecnico di Milano, 3220133 Milan, Italy
Yixin Zhu: Guangdong Key Laboratory of Clean Energy Technology, South China University of Technology, Guangzhou 510640, China
Zhao Xu: Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
Ping Yang: Guangdong Key Laboratory of Clean Energy Technology, South China University of Technology, Guangzhou 510640, China
Hanliang Song: School of Automation, Nanjing Institute of Technology, Nanjing 211167, China

Energies, 2018, vol. 11, issue 4, 1-12

Abstract: This paper developed a novel single-phase reactive current detection algorithm based on fast orthogonal signal generator (OSG) and enhanced moving average filter (MAF), overcoming the limitation of conventional schemes in detection speed, computation burden and noise/harmonic immunity. A fast and accurate OSG scheme is introduced first, which can remarkably improve the precision and response speed of the developed detection scheme. In d-q frame, the enhanced MAF is developed and its optimal design principle is also presented, which can sufficiently eliminate the noise and harmonics while achieve the possible shortest response time, particularly in the case of selective harmonics cancellation. Finally, high-performance single-phase STATCOM control is realized utilizing the proposed method. Experiments reveal that the proposed detection scheme exhibits fast speed, high precision as well as noise/harmonics immunity, providing satisfactory control performances.

Keywords: reactive current detection; OSG; enhanced MAF; single-phase STATCOM (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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