EPE Association: EPE 1997 – 19: Lecture Session L5c: ACTIVE FILTERS AND HARMONICS

EPE 1997 – 19: Lecture Session L5c: ACTIVE FILTERS AND HARMONICS
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   A SHUNT ACTIVE FILTER BASED ON VOLTAGE DETECTION FOR HARMONIC DAMPING THROUGHOUT A POWER DISTRIBUTION FEEDER
By H. Akagi [View]
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Abstract: This paper describes a shunt active filter for installation on power distribution feeders by electric power utilities in the near future. The purpose of the shunt active filter based on voltage detection is not to provide harmonic compensation of dispersed nonlinear loads, but to damp harmonic propagation in a power distribution system which is subjected to harmonic pollution caused by harmonic resonance and a number of unidentified harmonic-producing loads. Theory and simulation verifY that the active filter is cost-effective in harmonic damping throughout a radial power distribution feeder of 6.6 kV when it is installed at the end terminal of a primary line of the feeder.

   EXPERIMENTAL SETUP OF A SHUNT ACTIVE FILTER USING A SUPERCONDUCTING MAGNETIC ENERGY STORAGE DEVICE
By 0. Simon; H. Spaeth; K.-P. Juengst; P. Komarek [View]
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Abstract: This article contains the design and the results of an experimental setup where a superconducting magnetic energy storage device (SMES) is used in combination with an active filter to enhance power quality locally by reducing flicker. The SMES is a device for a direct electrical energy storage with the unique option to perform fast and frequent charging and discharging cycles without degradation. Especially the active filter current control which enables the system to care for harmonic current delivery is presented in detail also.

   HYRID FILTRATION IN CONDITIONS OF ASYMMETRIC NONLINEAR LOAD CURRENT PULSATION
By R. Strzelecki; L. Frackowia; G. Benysek [View]
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Abstract: From among filtration methods of current higher harmonics in electrical lines supplying high power loads, the hybrid filtration is particularly advantageous. Hybrid filters do not possess faults of resonance and active filters. The compensation effect does not depend of the network impedance, the danger of parallel resonance does not exist between the network impedance and the passive LC filter and the additional source power required in this instance is smaller than in case of conventional active filters. Prope1ties of hybrid filters depend to a high degree on the load character. In case of an asymmetric loading the additional source power increases because both higher hrumonics and the negative phase sequence component at basic frequency are compensated. A new algorithm to control the hybrid filter is presented in the paper, which enables the application of hybrid filters in case of an asymmetrical loading without the necessity to increase the stabilized power of the active part.

   175/188HZ ACTIVE FILTER FOR CONNECTING DECENTRALIZED ELECTRICITY PRODUCERS
By P. Michalak; R Pouliquen; J.F. Tissier; A. Grandet [View]
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Abstract: The connection of independent electricity producers to the busbar of an HV/MV utility substation can interfere with the transmission of ripple control signals containing tariff messages. In this paper we present two new 175Hz/188Hz active filter systems designed to counteract this interference. These equipments can be seen as «CUSTOM POWER concept» devices.

EPE 1997 – 19: Lecture Session L5c: ACTIVE FILTERS AND HARMONICS
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1997 - Conference > EPE 1997 – 19: Lecture Session L5c: ACTIVE FILTERS AND HARMONICS
	[return to parent folder]

	A SHUNT ACTIVE FILTER BASED ON VOLTAGE DETECTION FOR HARMONIC DAMPING THROUGHOUT A POWER DISTRIBUTION FEEDER By H. Akagi	[View] [Download]
Abstract: This paper describes a shunt active filter for installation on power distribution feeders by electric power utilities in the near future. The purpose of the shunt active filter based on voltage detection is not to provide harmonic compensation of dispersed nonlinear loads, but to damp harmonic propagation in a power distribution system which is subjected to harmonic pollution caused by harmonic resonance and a number of unidentified harmonic-producing loads. Theory and simulation verifY that the active filter is cost-effective in harmonic damping throughout a radial power distribution feeder of 6.6 kV when it is installed at the end terminal of a primary line of the feeder.

	EXPERIMENTAL SETUP OF A SHUNT ACTIVE FILTER USING A SUPERCONDUCTING MAGNETIC ENERGY STORAGE DEVICE By 0. Simon; H. Spaeth; K.-P. Juengst; P. Komarek	[View] [Download]
Abstract: This article contains the design and the results of an experimental setup where a superconducting magnetic energy storage device (SMES) is used in combination with an active filter to enhance power quality locally by reducing flicker. The SMES is a device for a direct electrical energy storage with the unique option to perform fast and frequent charging and discharging cycles without degradation. Especially the active filter current control which enables the system to care for harmonic current delivery is presented in detail also.

	HYRID FILTRATION IN CONDITIONS OF ASYMMETRIC NONLINEAR LOAD CURRENT PULSATION By R. Strzelecki; L. Frackowia; G. Benysek	[View] [Download]
Abstract: From among filtration methods of current higher harmonics in electrical lines supplying high power loads, the hybrid filtration is particularly advantageous. Hybrid filters do not possess faults of resonance and active filters. The compensation effect does not depend of the network impedance, the danger of parallel resonance does not exist between the network impedance and the passive LC filter and the additional source power required in this instance is smaller than in case of conventional active filters. Prope1ties of hybrid filters depend to a high degree on the load character. In case of an asymmetric loading the additional source power increases because both higher hrumonics and the negative phase sequence component at basic frequency are compensated. A new algorithm to control the hybrid filter is presented in the paper, which enables the application of hybrid filters in case of an asymmetrical loading without the necessity to increase the stabilized power of the active part.

	175/188HZ ACTIVE FILTER FOR CONNECTING DECENTRALIZED ELECTRICITY PRODUCERS By P. Michalak; R Pouliquen; J.F. Tissier; A. Grandet	[View] [Download]
Abstract: The connection of independent electricity producers to the busbar of an HV/MV utility substation can interfere with the transmission of ripple control signals containing tariff messages. In this paper we present two new 175Hz/188Hz active filter systems designed to counteract this interference. These equipments can be seen as «CUSTOM POWER concept» devices.