EPE Association: EPE 2009 - Subtopic 15-2 - LS: 'Power Electronics for Power Systems (II)'

EPE 2009 - Subtopic 15-2 - LS: 'Power Electronics for Power Systems (II)'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2009 - Conference > EPE 2009 - Topic 15: 'Transmission and Distribution of Electrical Energy' > EPE 2009 - Subtopic 15-2 - LS: 'Power Electronics for Power Systems (II)'

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   Leading Current Reduction in a Three Phase Four Wires Shunt Hybrid Filter
By Manuel LAMICH, Josep BALCELLS, JosÃ© Luis CASTILLO, Daniel PEREZ [View]
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Abstract: The main drawback in Shunt Hybrid Filters is the lead current injection need. This paper describes a strategy to reduce the lead current in a three phase four wires LC coupled parallel hybrid filter for harmonics cancellation. Simulation and experimental results are given to show the behavior of the system.

   Harmonic Detection Methods of Active Filters for Adjustable Speed Drive Applications
By Sergej KALASCHNIKOW, Lucian ASIMINOAEI, Steffan HANSEN [View]
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Abstract: This paper describes harmonic detection methods used in industrial shunt active filters, designed for adjustable speed drive applications. The methods are based on overall - broadband and selective harmonic detection technique. All methods are described and analyzed in the paper together with several practical design steps. The methods are compared in the case of voltage unbalance and pre distortion, commonly met in industrial applications, which enable to conclude their comparison.

   A Dual Topology of Unified Power Quality Conditioner: the iUPQC
By MAURICIO AREDES, RODRIGO FERNANDES [View]
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Abstract: Configurations of combined series and shunt active filters, also known as Unified Power Quality Con-ditioners (UPQCs), are designed for simultaneous compensation of voltage and current harmonics and imbalances. Sometimes, compensation of voltage sag/swell is also included as additional functionality of the UPQC. Traditionally, the shunt active filter of the UPQC behaves as a controlled current source that compensates the load current, whereas the series active filter behaves as a controlled voltage source that compensates the supply voltage. Here, a dual configuration of UPQC, hereafter called as iUPQC, is presented. In contrast to the conventional approach of UPQC, the shunt active filter of the new iUPQC behaves as an ac voltage source and the series one as an ac current source. An advantage of the iUPQC over traditional UPQCs is the fact of having fundamental positive-sequence currents and voltages references for the series and shunt active filters, respectively. Contrarily, conventional ap-proaches of UPQC must deal with nonsinusoidal compensating voltage and current references, with aleatoric frequency spectra. In this case, it is impossible to practically unsure zero steady-state errors in all frequency components. Beside all those compensation characteristics of the UPQC, the iUPQC can also keep the voltage at load terminal tracking its referential values, according to the desired speci-fications. In other words, the iUPQC has voltage sag/swell compensation capability, with fast re-sponse, comparable to that of a Dynamic Voltage Restorer (DVR). The basic control strategy and an improved version are presented and the system performance is compared through simulations. Fi-nally, experimental results are presented to validate the proposed iUPQC controller.

EPE 2009 - Subtopic 15-2 - LS: 'Power Electronics for Power Systems (II)'
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2009 - Conference > EPE 2009 - Topic 15: 'Transmission and Distribution of Electrical Energy' > EPE 2009 - Subtopic 15-2 - LS: 'Power Electronics for Power Systems (II)'
	[return to parent folder]

	Leading Current Reduction in a Three Phase Four Wires Shunt Hybrid Filter By Manuel LAMICH, Josep BALCELLS, JosÃ© Luis CASTILLO, Daniel PEREZ	[View] [Download]
Abstract: The main drawback in Shunt Hybrid Filters is the lead current injection need. This paper describes a strategy to reduce the lead current in a three phase four wires LC coupled parallel hybrid filter for harmonics cancellation. Simulation and experimental results are given to show the behavior of the system.

	Harmonic Detection Methods of Active Filters for Adjustable Speed Drive Applications By Sergej KALASCHNIKOW, Lucian ASIMINOAEI, Steffan HANSEN	[View] [Download]
Abstract: This paper describes harmonic detection methods used in industrial shunt active filters, designed for adjustable speed drive applications. The methods are based on overall - broadband and selective harmonic detection technique. All methods are described and analyzed in the paper together with several practical design steps. The methods are compared in the case of voltage unbalance and pre distortion, commonly met in industrial applications, which enable to conclude their comparison.

	A Dual Topology of Unified Power Quality Conditioner: the iUPQC By MAURICIO AREDES, RODRIGO FERNANDES	[View] [Download]
Abstract: Configurations of combined series and shunt active filters, also known as Unified Power Quality Con-ditioners (UPQCs), are designed for simultaneous compensation of voltage and current harmonics and imbalances. Sometimes, compensation of voltage sag/swell is also included as additional functionality of the UPQC. Traditionally, the shunt active filter of the UPQC behaves as a controlled current source that compensates the load current, whereas the series active filter behaves as a controlled voltage source that compensates the supply voltage. Here, a dual configuration of UPQC, hereafter called as iUPQC, is presented. In contrast to the conventional approach of UPQC, the shunt active filter of the new iUPQC behaves as an ac voltage source and the series one as an ac current source. An advantage of the iUPQC over traditional UPQCs is the fact of having fundamental positive-sequence currents and voltages references for the series and shunt active filters, respectively. Contrarily, conventional ap-proaches of UPQC must deal with nonsinusoidal compensating voltage and current references, with aleatoric frequency spectra. In this case, it is impossible to practically unsure zero steady-state errors in all frequency components. Beside all those compensation characteristics of the UPQC, the iUPQC can also keep the voltage at load terminal tracking its referential values, according to the desired speci-fications. In other words, the iUPQC has voltage sag/swell compensation capability, with fast re-sponse, comparable to that of a Dynamic Voltage Restorer (DVR). The basic control strategy and an improved version are presented and the system performance is compared through simulations. Fi-nally, experimental results are presented to validate the proposed iUPQC controller.