Results 161 to 170 of about 946 (192)
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Effect of Interharmonics on Flicker of Fluorescent Lamps
2018 China International Conference on Electricity Distribution (CICED), 2018In order to analyze the inter-harmonic affections on the voltage flicker, the relationship between the inter-harmonics and flicker analysis are carried out. In order to be able to accurately determine the level of inter-harmonics to make the electric light flicker, inter-harmonic-flicker limit curve drawing method based on the voltage flicker ...
Huiyan Cao +5 more
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Some considerations on interharmonic voltage limits and their assessment
2008 43rd International Universities Power Engineering Conference, 2008Some considerations on interharmonic voltages limits and their assessment are developed. Reference is made to recent activities in the standard review process and to research literature regarding this specific topic and related issues. Some recalls on the main interharmonic voltages effects are reported.
LANGELLA, Roberto, TESTA, Alfredo
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Damping torsional interharmonic effects of large drives
2009 IEEE 6th International Power Electronics and Motion Control Conference, 2009Current source thyristor converters are the most widespread technology for large drives and today still a suitable choice for supplying high power variable speed drives for pumps and compressors because of excellent reliability records.
Simon Schramm +3 more
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Harmonic and interharmonic currents compensation in DC line
2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2014In this paper a strategy for the compensation of harmonic currents in DC bus has been proposed. By means of a multilevel converter, low amplitude harmonic currents due to the interaction between primary converters operating in different conditions and connected to the same DC bus, are compensated.
Fioretto M +4 more
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Cost-Effective FPGA Instrument for Harmonic and Interharmonic Monitoring
IEEE Transactions on Instrumentation and Measurement, 2013The need of large-scale monitoring of power quality (PQ) in electrical power systems require the design of reliable and cost-effective measurement instruments. In this framework, Field Programmable Gate Array (FPGA) architectures seem to offer valid solutions since they allow powerful measurement algorithms to be implemented on low-cost hardware with ...
Giovanni Betta +2 more
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On the processing of harmonics and interharmonics in electrical power systems
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002A recent IEC standard draft gives new definitions and methods for measurement and interpretation of results for harmonics and interharmonics, in particular introducing the concept of the harmonic and interharmonic groups. This paper analyses the spectral leakage problems due to a nonsynchronization of the analyzed waveforms with the window width ...
GALLO, Daniele +2 more
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Interharmonic measurements in IEC standard framework
IEEE Power Engineering Society Summer Meeting,, 2003The main problem for harmonic and interharmonic measurement is to reduce the effects of the spectral leakage of harmonics on interharmonic components: line frequency synchronization techniques or algorithms to compensate desynchronisation are necessary.
A. Testa, D. Gallo, R. Langella
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Sources and mitigation of interharmonics in back-to-back controllable drives
2014 16th European Conference on Power Electronics and Applications, 2014The theme here is to identify the sources of interharmonics that can affect back-to-back controllable drives and make non-characteristic interharmonic components in the grid side currents when the motor currents are unbalanced. A new control methodology then is formulated and proposed to compensate for the sources, leading to undistorted grid currents,
Soltani, Hamid +3 more
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The Modified Harmonic Domain: Interharmonics
IEEE Transactions on Power Delivery, 2011This paper presents the basics of two techniques, named here as the modified harmonic domain and the modified dynamic harmonic domain, proposed for calculating steady and dynamic states, respectively. These techniques have their fundamental in the harmonic domain with a substantial improvement: the inclusion of interharmonics in either steady or ...
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A robust and adaptive interharmonics detection method
2017 IEEE Conference on Energy Internet and Energy System Integration (EI2), 2017In the active distribution network (ADN), the interharmonic distortion level is aggravated due to the growing penetration of distributed generations and wide application of power electronic loads. The interharmonics, even at a low amplitude level, can cause power quality problems, deteriorate the measurement accuracies of the advanced metering ...
Zongshuai Jin +3 more
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