EPE Association: EPE-PEMC 2000 - Topic 04c: General Section

EPE-PEMC 2000 - Topic 04c: General Section
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2000 - Conference > EPE-PEMC 2000 - Topic 04: Electromagnetic Compatibility > EPE-PEMC 2000 - Topic 04c: General Section

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   A High Power Factor Three-Phase Rectifier Based on Adaptive Current Injection Applying Buck Converter
By Janda Ž., Pejoviæ P.* [View]
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Abstract: The problem addressed in this paper is how to restore the power taken by the current injection network in the case of optimal injection of third harmonic, in a simple way, providing self-adjustment of the rectifier to the load current variations. Goals of the presented research are to use only one current sensor, and to improve third harmonic injection technique. A new rectifier topology is proposed, as well as the improved control algorithm which modify the rectifier output current. Algorithm of the rectifier design is presented. Analytical results are verified by experiments.

   EMC Requirements for Electrical Power Drive Systems and Conformity Assessment
By Cetl T., Žáèek J. [View]
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Abstract: The paper deals with technical requirements relating to electromagnetic compatibility for power drive systems, as they are declared in the appropriate harmonized product standard. The immunity as well as emission requirements are summarized, both in low-frequency and high-frequency area. The paper analyses also the conformity assessment procedures in EU and in Czech Republic, and the resulting effects for the import and export of the mentioned systems. The list of connected and often used EN standards is appended.

   Exact PWM Waveforms Analysis Using a Novel Identification-Based Technique
By Krim F. [View]
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Abstract: This paper presents a new accurate and easy to use technique based on modeling and identification method devoted to extraction of harmonics generated by PWM converters supplying an electrical drive. The technique is designed from the mathematical model describing the signal and a new recursive least error squares identification algorithm . The harmonic parameters which are the frequency, magnitude and phase angle are estimated from the uniformly sampled signal. The technique testing based on computer simulated and experimentally obtained data record processing confirmed the good features of the technique developed and also its performance superiority relatively to the conventional spectral analysis methods such as that of Fourier and z-transform estimation. The proposed method is general enough for any signal. Its application to PWM (Pulse width modulation) waveforms is described here.

EPE-PEMC 2000 - Topic 04c: General Section
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2000 - Conference > EPE-PEMC 2000 - Topic 04: Electromagnetic Compatibility > EPE-PEMC 2000 - Topic 04c: General Section
	[return to parent folder]

	A High Power Factor Three-Phase Rectifier Based on Adaptive Current Injection Applying Buck Converter By Janda Ž., Pejoviæ P.*	[View] [Download]
Abstract: The problem addressed in this paper is how to restore the power taken by the current injection network in the case of optimal injection of third harmonic, in a simple way, providing self-adjustment of the rectifier to the load current variations. Goals of the presented research are to use only one current sensor, and to improve third harmonic injection technique. A new rectifier topology is proposed, as well as the improved control algorithm which modify the rectifier output current. Algorithm of the rectifier design is presented. Analytical results are verified by experiments.

	EMC Requirements for Electrical Power Drive Systems and Conformity Assessment By Cetl T., Žáèek J.	[View] [Download]
Abstract: The paper deals with technical requirements relating to electromagnetic compatibility for power drive systems, as they are declared in the appropriate harmonized product standard. The immunity as well as emission requirements are summarized, both in low-frequency and high-frequency area. The paper analyses also the conformity assessment procedures in EU and in Czech Republic, and the resulting effects for the import and export of the mentioned systems. The list of connected and often used EN standards is appended.

	Exact PWM Waveforms Analysis Using a Novel Identification-Based Technique By Krim F.	[View] [Download]
Abstract: This paper presents a new accurate and easy to use technique based on modeling and identification method devoted to extraction of harmonics generated by PWM converters supplying an electrical drive. The technique is designed from the mathematical model describing the signal and a new recursive least error squares identification algorithm . The harmonic parameters which are the frequency, magnitude and phase angle are estimated from the uniformly sampled signal. The technique testing based on computer simulated and experimentally obtained data record processing confirmed the good features of the technique developed and also its performance superiority relatively to the conventional spectral analysis methods such as that of Fourier and z-transform estimation. The proposed method is general enough for any signal. Its application to PWM (Pulse width modulation) waveforms is described here.