EPE Association: EPE 1995 - 04 - Lecture Session L1d: HVDC

EPE 1995 - 04 - Lecture Session L1d: HVDC
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   THE HARMONIC IMPEDANCE OF AN HVDC CONVERTOR
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By A. R. Wood; B. C. Smith; J. Arrillaga [View]
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Abstract: The harmonic impedances of a power system are important for harmonic filter design. An unresolved problem is how to account for the presence of significant non-linear components such as HVDC convertors. This paper presents two new methods to calculate the harmonic impedance of an HVDC convertor, and shows that for some harmonics the converter impedance is strongly dependent on the relative phase of the applied harmonic.

   DESIGN, CONTROL AND BEHAVIOUR OF A FORCED COMMUTATED CURRENT SOURCE INVERTER USED IN A HVDC TRANSMISSION SYSTEM
By G. Lipphardt [View]
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Abstract: This paper discusses some aspects of the feasibility of using a forced commutated current source inverter in a HVDC transmission system. This type of inverter might be interesting in special situations such as feeding weak or passive ac networks or in multi-terminal systems. After presenting the converter topology and giving design criteria, a control strategy is proposed and analysed. Static behaviour and aspects of the transient system behaviour are shown. The investigations are based on digital simulations. Need for further studies is pointed out where necessary. The results show that this type of converter can be of interest for future use in HVDC systems.

EPE 1995 - 04 - Lecture Session L1d: HVDC
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1995 - Conference > EPE 1995 - 04 - Lecture Session L1d: HVDC
	[return to parent folder]

	THE HARMONIC IMPEDANCE OF AN HVDC CONVERTOR (Do not print) By A. R. Wood; B. C. Smith; J. Arrillaga	[View] [Download]
Abstract: The harmonic impedances of a power system are important for harmonic filter design. An unresolved problem is how to account for the presence of significant non-linear components such as HVDC convertors. This paper presents two new methods to calculate the harmonic impedance of an HVDC convertor, and shows that for some harmonics the converter impedance is strongly dependent on the relative phase of the applied harmonic.

	DESIGN, CONTROL AND BEHAVIOUR OF A FORCED COMMUTATED CURRENT SOURCE INVERTER USED IN A HVDC TRANSMISSION SYSTEM By G. Lipphardt	[View] [Download]
Abstract: This paper discusses some aspects of the feasibility of using a forced commutated current source inverter in a HVDC transmission system. This type of inverter might be interesting in special situations such as feeding weak or passive ac networks or in multi-terminal systems. After presenting the converter topology and giving design criteria, a control strategy is proposed and analysed. Static behaviour and aspects of the transient system behaviour are shown. The investigations are based on digital simulations. Need for further studies is pointed out where necessary. The results show that this type of converter can be of interest for future use in HVDC systems.