EPE Association: EPE 2007 - Subtopic 14-3 - LS: Active, passive and combined filtering, power conditioning, power factor correction

EPE 2007 - Subtopic 14-3 - LS: Active, passive and combined filtering, power conditioning, power factor correction
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 14: 'Transmission and distribution of electrical energy' > EPE 2007 - Subtopic 14-3 - LS: Active, passive and combined filtering, power conditioning, power factor correction

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   A Novel Vector Controlled Current Source Active Power Filter and its Comparison with a Traditional Topology
By SALO Mika; TUUSA Heikki; PARKATTI Perttu [View]
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Abstract: Power losses and voltage stresses are a problem in active power filters. This paper presents a novel topology for reducing component voltage stresses and power losses in a current source shunt active power filter (CSAPF). The compensation provided by the proposed topology is compared with that of a conventional CSAPF topology and simulation results are presented. The operation of the simulation model was also verified with prototype measurements.

   Improvement of the Voltage Compensation Performance of the Series Active Power Filter Using a Simple PI-Control Method
By TUUSA Heikki; TURUNEN Juha [View]
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Abstract: The quality of the power is impaired by several reasons. This degradation of the quality of the power is seen e.g. as supply interruptions, transient overvoltages, voltage dips, flicker, harmonics and voltage unbalance. The quality of the power may be improved by using power conditioning equipment, which may be either passive or active. This paper discusses one of the most modern power conditioning devices, i.e. the unified power quality conditioner (UPQC), which consists of the parallel active power filter (PAPF) and the series active power filter (SAPF). The UPQC is a power conditioning device able to compensate all kinds of power quality faults. In this paper the UPQC is used to filter both current and voltage harmonics and to compensate the voltage dip. The paper deals with a way to improve the voltage compensation performance of the SAPF at fundamental frequency in steady-state operation. This improvement is achieved by improving the conventional SAPF control system. The control system of the SAPF is improved by using closed-loop control instead of open-loop control. Finally, the results of the experimental tests verifying the functioning of the proposed control system are presented.

   Use of resonant controller for grid-connected converters in case of large frequency fluctuations
By GUILLAUD Xavier; DEGOBERT Philippe; TEODORESCU Remus [View]
[Download]

Abstract: The use of resonant controller has been studied for two main types of applications: grid-connected converters where the frequency is supposed to be nearly fixed and control of electrical drives where the frequency is varying in a wide range. The paper proposes to apply some methodology developed for control of electrical drive to the control of converters connected to a weak grid with large frequency variations.

EPE 2007 - Subtopic 14-3 - LS: Active, passive and combined filtering, power conditioning, power factor correction
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 14: 'Transmission and distribution of electrical energy' > EPE 2007 - Subtopic 14-3 - LS: Active, passive and combined filtering, power conditioning, power factor correction
	[return to parent folder]

	A Novel Vector Controlled Current Source Active Power Filter and its Comparison with a Traditional Topology By SALO Mika; TUUSA Heikki; PARKATTI Perttu	[View] [Download]
Abstract: Power losses and voltage stresses are a problem in active power filters. This paper presents a novel topology for reducing component voltage stresses and power losses in a current source shunt active power filter (CSAPF). The compensation provided by the proposed topology is compared with that of a conventional CSAPF topology and simulation results are presented. The operation of the simulation model was also verified with prototype measurements.

	Improvement of the Voltage Compensation Performance of the Series Active Power Filter Using a Simple PI-Control Method By TUUSA Heikki; TURUNEN Juha	[View] [Download]
Abstract: The quality of the power is impaired by several reasons. This degradation of the quality of the power is seen e.g. as supply interruptions, transient overvoltages, voltage dips, flicker, harmonics and voltage unbalance. The quality of the power may be improved by using power conditioning equipment, which may be either passive or active. This paper discusses one of the most modern power conditioning devices, i.e. the unified power quality conditioner (UPQC), which consists of the parallel active power filter (PAPF) and the series active power filter (SAPF). The UPQC is a power conditioning device able to compensate all kinds of power quality faults. In this paper the UPQC is used to filter both current and voltage harmonics and to compensate the voltage dip. The paper deals with a way to improve the voltage compensation performance of the SAPF at fundamental frequency in steady-state operation. This improvement is achieved by improving the conventional SAPF control system. The control system of the SAPF is improved by using closed-loop control instead of open-loop control. Finally, the results of the experimental tests verifying the functioning of the proposed control system are presented.

	Use of resonant controller for grid-connected converters in case of large frequency fluctuations By GUILLAUD Xavier; DEGOBERT Philippe; TEODORESCU Remus	[View] [Download]
Abstract: The use of resonant controller has been studied for two main types of applications: grid-connected converters where the frequency is supposed to be nearly fixed and control of electrical drives where the frequency is varying in a wide range. The paper proposes to apply some methodology developed for control of electrical drive to the control of converters connected to a weak grid with large frequency variations.