PLL Based Method for Supraharmonics Emission Assessment

Mendes, Thais Martins; Silva, Leandro Rodrigues Manso; Ribeiro, Paulo F.; Duque, Carlos A.; Meyer, Jan; Ferreira, Danton Diego

doi:10.1109/tpwrd.2021.3112404

Cited by 8 publications

(3 citation statements)

References 25 publications

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“…Other measurement methods have been recently proposed to evaluate the amplitude of disturbances in the electrical grid in the 9 to 150 kHz range [23]- [28]. A subsampling approach in [23] uses lower sampling rates for high frequencies, with a filter bank that decomposes the input signal into ten bands, which are processed by DFT assessment.…”

Section: Other Methodsmentioning

confidence: 99%

Section: Other Methodsmentioning

confidence: 99%

“…Recently, a method for emulating a CISPR 16 receiver has been published [28], based on a Phase-Locked Loop. The method assumes that the emissions are sparse in the frequency domain and it is designed to identify only tonal or quasi-tonal high amplitude components [28]. Finally, some proposals for implementing a quasi-peak detector with the use of DFT and digital processing have been published [18][19].…”

Section: Other Methodsmentioning

confidence: 99%

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A Light Measurement Method for 9–150 kHz Disturbances in Power Grids Comparable to CISPR Quasi-Peak

Gallarreta

Fernández

Ritzmann

et al. 2022

IEEE Trans. Instrum. Meas.

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This study proposes a novel measurement method to assess the disturbances in the electrical grid for the CISPR Band A (9 to 150 kHz), as no normative grid measurement method for these frequencies exists yet. Compatibility levels in IEC 61000-2-2 in this frequency range are defined based on the CISPR 16-1-1 method using the quasi-peak (QP) detector. However, this method is not directly applicable for grid measurements as it was originally designed for laboratory conditions and for measuring radio disturbances and immunity. The method proposed in this paper (Light-QP method) overcomes these limitations, along with lower complexity, computational burden and memory requirements than CISPR 16-1-1. The Light-QP method uses a digital quasi-peak detector that processes Root Mean Square (RMS) values of spectral components, calculated by adapting the IEC 61000-4-7 standard to the CISPR Band A. The proposed Light-QP method is applied to real measurements from a Low Voltage (LV) distribution grid and compared to the quasi-peak outputs from a digital implementation of the CISPR 16-1-1 method. The results are comparable and can be used for assessment against compatibility levels. The Light-QP method has been presented to IEC SC77A/WG9 for its potential inclusion as a normative measurement method in a new version of the IEC 61000-4-30 standard.

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Section: Other Methodsmentioning

confidence: 99%

Section: Other Methodsmentioning

confidence: 99%