EPE Association: EPE 1999 - Topic 09b: HVDC

EPE 1999 - Topic 09b: HVDC
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1999 - Conference > EPE 1999 - Topic 09: POWER ELECTRONICS IN GENERATION, TRANSMISSION AND DISTRIBUTION > EPE 1999 - Topic 09b: HVDC

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   Analysis of HVdc Converter with Immittance Conversion Link
By N. Kimura; K. Tanaka; T. Morizane; K. Taniguchi; H. Irie [View]
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Abstract: Immittance conversion circuit can convert current source into voltage source. This characteristics is desirable for HVdc system since dc current should be controlled constant to avoid fault current, while constant voltage characteristics is advantageous for connected ac system. This paper shows some important characteristics of immittance converter applied for HVdc system.

   Evaluation of Classical CCC and TCSC Converter Schemes for Long C...
By T. Jonsson; P. Holmberg; T. Tulkiewicz [View]
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Abstract: This paper compares the features and simulated dynamic performances of series compensated and classic HVDC converters with respect to long cable transmissions. Two series capacitor converter technologies are included – Capacitor Commutated Converters, CCC; and Thyristor Controlled Series Capacitor, TCSC. The comparison shows that the CCC and TCSC converters have a higher immunity to inverter AC voltage disturbances, and are able to increase the power transfer capability to weak AC networks. They also have lower demands on the reactive power supply than the classical converter design, which results in lowered load rejection overvoltages.

   HVDC Transmission in Synchronous Networks
By J. Warnking; G. Balzer [View]
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Abstract: The advantage of HVDC transmission is the ability to transport a determined amount of electrical power. The aim of this paper is to show HVDC transmission operating in synchronous networks with regard to voltage stability and losses compared to asynchronous networks and simple a.c. transmissions. A simplified model is built. Load flow calculations are made to show influences of the network configuration and operational conditions to improve voltage behavior and to reduce losses. Quasi-static calculations are made to show how voltage stability can be improved. The Voltage Sensivity Factor is used to show which part of the network is the most influenced concerning changes in active or reactive power.

EPE 1999 - Topic 09b: HVDC
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1999 - Conference > EPE 1999 - Topic 09: POWER ELECTRONICS IN GENERATION, TRANSMISSION AND DISTRIBUTION > EPE 1999 - Topic 09b: HVDC
	[return to parent folder]

	Analysis of HVdc Converter with Immittance Conversion Link By N. Kimura; K. Tanaka; T. Morizane; K. Taniguchi; H. Irie	[View] [Download]
Abstract: Immittance conversion circuit can convert current source into voltage source. This characteristics is desirable for HVdc system since dc current should be controlled constant to avoid fault current, while constant voltage characteristics is advantageous for connected ac system. This paper shows some important characteristics of immittance converter applied for HVdc system.

	Evaluation of Classical CCC and TCSC Converter Schemes for Long C... By T. Jonsson; P. Holmberg; T. Tulkiewicz	[View] [Download]
Abstract: This paper compares the features and simulated dynamic performances of series compensated and classic HVDC converters with respect to long cable transmissions. Two series capacitor converter technologies are included – Capacitor Commutated Converters, CCC; and Thyristor Controlled Series Capacitor, TCSC. The comparison shows that the CCC and TCSC converters have a higher immunity to inverter AC voltage disturbances, and are able to increase the power transfer capability to weak AC networks. They also have lower demands on the reactive power supply than the classical converter design, which results in lowered load rejection overvoltages.

	HVDC Transmission in Synchronous Networks By J. Warnking; G. Balzer	[View] [Download]
Abstract: The advantage of HVDC transmission is the ability to transport a determined amount of electrical power. The aim of this paper is to show HVDC transmission operating in synchronous networks with regard to voltage stability and losses compared to asynchronous networks and simple a.c. transmissions. A simplified model is built. Load flow calculations are made to show influences of the network configuration and operational conditions to improve voltage behavior and to reduce losses. Quasi-static calculations are made to show how voltage stability can be improved. The Voltage Sensivity Factor is used to show which part of the network is the most influenced concerning changes in active or reactive power.