EPE Association: EPE 2005 - Topic 15-1: Power conditioning, power factor correction, modern line side converters

EPE 2005 - Topic 15-1: Power conditioning, power factor correction, modern line side converters
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2005 - Conference > EPE 2005 - Topic 15: POWER ELECTRONICS IN TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY > EPE 2005 - Topic 15-1: Power conditioning, power factor correction, modern line side converters

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   Adding Damping in Power Distribution Systems by means of Power Electronic Converters
By RYCKAERT Wouter; MELKEBEEK Jan; DESMET Jan; VAN DE SYPE David; DE GUSSEME Koen [View]
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Abstract: The amount of non-linear and unbalanced loads (such as adjustable speed drives and personal computers) connected to the electric power system is steadily growing. As a result, the power quality i.e. the reliability of the energy supply and the quality of the voltage waveform, may be severely degraded. Especially in the case of resonances, severe voltage distortion can be the result. Both harmonic voltage and current distortion may cause many unfavourable effects on both the power system and the connected loads.Although complete compensation is only possible using true active filters, resistive shunt harmonic impedances (SHI) have been shown to provide a considerable reduction of the harmonic distortion. These impedances can be implemented using active power electronic devices which are controlled to synthesize a resistive load. Benefits are: no need to measure the polluting current of non-linear loads, effective for all harmonics and different resonance conditions, simple control strategy, and possible implementation as a secondary control function of active power supplies and distributed power inverters.In this paper, a practical implementation of a resistive SHI is proposed. A new control strategy for a full-bridge ac-dc converter has been implemented in order to achieve a programmable resistive input impedance for harmonics, independent of the input impedance for the fundamental component. The potential to damp a resonance in a power distribution system is demonstrated using an experimental setup. Providing extra damping into the power system is an interesting feature for powerelectronic loads as well as for converters used in distributed power generation.

   Advanced control principles of voltage source inverters for use in power distribution or/and harmonics compensation
By LATAIRE Philippe; CHENG Yonghua [View]
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Abstract: Based on a general voltage source inverter module and its control unit, advanced control principles of shunt and series inverters for the fundamental component control or/and harmonics compensation with respect to fast and accurate response have been presented. High power quality and flexibility can been achieved.

   Decentralized Control for Parallel Operation of Distributed Generation Inverters Using Resistive Output Impedance
By ALENTORN Alberto; MATAS Jose; SOSA Jorge; BERBEL NeStor; GUERRERO Josep; CRUZ Juan [View]
[Download]

Abstract: In this paper, a novel wireless load-sharing controller for islanding parallel inverters in an ac distributed system is proposed. The paper explorers the resistive output impedance of the parallel connected inverters in an island microgrid.

EPE 2005 - Topic 15-1: Power conditioning, power factor correction, modern line side converters
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2005 - Conference > EPE 2005 - Topic 15: POWER ELECTRONICS IN TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY > EPE 2005 - Topic 15-1: Power conditioning, power factor correction, modern line side converters
	[return to parent folder]

	Adding Damping in Power Distribution Systems by means of Power Electronic Converters By RYCKAERT Wouter; MELKEBEEK Jan; DESMET Jan; VAN DE SYPE David; DE GUSSEME Koen	[View] [Download]
Abstract: The amount of non-linear and unbalanced loads (such as adjustable speed drives and personal computers) connected to the electric power system is steadily growing. As a result, the power quality i.e. the reliability of the energy supply and the quality of the voltage waveform, may be severely degraded. Especially in the case of resonances, severe voltage distortion can be the result. Both harmonic voltage and current distortion may cause many unfavourable effects on both the power system and the connected loads.Although complete compensation is only possible using true active filters, resistive shunt harmonic impedances (SHI) have been shown to provide a considerable reduction of the harmonic distortion. These impedances can be implemented using active power electronic devices which are controlled to synthesize a resistive load. Benefits are: no need to measure the polluting current of non-linear loads, effective for all harmonics and different resonance conditions, simple control strategy, and possible implementation as a secondary control function of active power supplies and distributed power inverters.In this paper, a practical implementation of a resistive SHI is proposed. A new control strategy for a full-bridge ac-dc converter has been implemented in order to achieve a programmable resistive input impedance for harmonics, independent of the input impedance for the fundamental component. The potential to damp a resonance in a power distribution system is demonstrated using an experimental setup. Providing extra damping into the power system is an interesting feature for powerelectronic loads as well as for converters used in distributed power generation.

	Advanced control principles of voltage source inverters for use in power distribution or/and harmonics compensation By LATAIRE Philippe; CHENG Yonghua	[View] [Download]
Abstract: Based on a general voltage source inverter module and its control unit, advanced control principles of shunt and series inverters for the fundamental component control or/and harmonics compensation with respect to fast and accurate response have been presented. High power quality and flexibility can been achieved.

	Decentralized Control for Parallel Operation of Distributed Generation Inverters Using Resistive Output Impedance By ALENTORN Alberto; MATAS Jose; SOSA Jorge; BERBEL NeStor; GUERRERO Josep; CRUZ Juan	[View] [Download]
Abstract: In this paper, a novel wireless load-sharing controller for islanding parallel inverters in an ac distributed system is proposed. The paper explorers the resistive output impedance of the parallel connected inverters in an island microgrid.