EPE Association: EPE 2001 - Topic 10b: HVDC

EPE 2001 - Topic 10b: HVDC
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2001 - Conference > EPE 2001 - Topic 10: POWER ELECTRONICS IN GENERATION, TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY > EPE 2001 - Topic 10b: HVDC

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   Developments in modelling and analysis of HVDC control systems
By M. Aten; K.M. Abbott; N. Jenkins [View]
[Download]

Abstract: Developments in modelling and analysis of HVDC control systems are described. Modern tools allow simulation of non-linear, time-variant phenomena, but a better understanding of stability margins is obtained by applying control theory. Therefore a linearised state-space model in the s-domain is validated for various HVDC systems and operating conditions.

   Dynamic Performance of HVDC According to Excitation System Characteris
By C-K. Kim; B-M. Yang; G-J. Jung [View]
[Download]

Abstract: This paper analyzes the dynamic performance of HVDC System connected to a weak AC system for various exciter characteristics of synchronous machines connected at the converter bus. Conventionally capacitors are used to supply reactive power requirement at a strong converter bus. But the installation of synchronous machine is essential in an isolated weak network to re-start after a shutdown of HVDC and to increase system strength. The dynamic performance of a synchronous machine depends on the characteristics its exciter. In this paper, several exciter types are used to investigate their effect on the dynamic performance of the HVDC system and modifications to standard exciter topologies are suggested to mitigate observed problems.

   HVDC Transmission systems with VSC and simultaneous VAR compensation
By L. Xu; V. G. Agelidis; E. Acha [View]
[Download]

Abstract: This paper presents an experimental investigation of an advanced High Voltage Direct Current (HVDC) power transmission system based on Pulse-Width Modulated (PWM) two-level Voltage Source Converters (VSC’s) using Insulated Gate Bipolar Transistors (IGBT’s). The system’s principles of operation and the associated control are described. The performance of the said system is studied under normal conditions on a scaled down laboratory prototype. Experimental results of the steady-state operation with bi-directional active power flow and various power factors are presented. It is shown that for the HVDC system with VSC technology, active power flow can be easily reversed without changing the DC voltage polarity, and reactive power support at each converter station can be provided simultaneously.

   Voltage Sourced Converter for HVDC Application
By M. Schwegmann; P. G. Kamp; B. Weis [View]
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Abstract: A new Voltage Sourced Converter (VSC) based system for High Voltage Direct Current transmission (HVDC) and Flexible AC Transmission Systems (FACTS) applications with a power rating of more than 200 MW and a DC-Link voltage up to ± 150 kV has been developed. The design of the system and the converters are discussed. Special attention is also paid to the failure modes and the series connection of Press Pack IGBT.

EPE 2001 - Topic 10b: HVDC
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2001 - Conference > EPE 2001 - Topic 10: POWER ELECTRONICS IN GENERATION, TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY > EPE 2001 - Topic 10b: HVDC
	[return to parent folder]

	Developments in modelling and analysis of HVDC control systems By M. Aten; K.M. Abbott; N. Jenkins	[View] [Download]
Abstract: Developments in modelling and analysis of HVDC control systems are described. Modern tools allow simulation of non-linear, time-variant phenomena, but a better understanding of stability margins is obtained by applying control theory. Therefore a linearised state-space model in the s-domain is validated for various HVDC systems and operating conditions.

	Dynamic Performance of HVDC According to Excitation System Characteris By C-K. Kim; B-M. Yang; G-J. Jung	[View] [Download]
Abstract: This paper analyzes the dynamic performance of HVDC System connected to a weak AC system for various exciter characteristics of synchronous machines connected at the converter bus. Conventionally capacitors are used to supply reactive power requirement at a strong converter bus. But the installation of synchronous machine is essential in an isolated weak network to re-start after a shutdown of HVDC and to increase system strength. The dynamic performance of a synchronous machine depends on the characteristics its exciter. In this paper, several exciter types are used to investigate their effect on the dynamic performance of the HVDC system and modifications to standard exciter topologies are suggested to mitigate observed problems.

	HVDC Transmission systems with VSC and simultaneous VAR compensation By L. Xu; V. G. Agelidis; E. Acha	[View] [Download]
Abstract: This paper presents an experimental investigation of an advanced High Voltage Direct Current (HVDC) power transmission system based on Pulse-Width Modulated (PWM) two-level Voltage Source Converters (VSC’s) using Insulated Gate Bipolar Transistors (IGBT’s). The system’s principles of operation and the associated control are described. The performance of the said system is studied under normal conditions on a scaled down laboratory prototype. Experimental results of the steady-state operation with bi-directional active power flow and various power factors are presented. It is shown that for the HVDC system with VSC technology, active power flow can be easily reversed without changing the DC voltage polarity, and reactive power support at each converter station can be provided simultaneously.

	Voltage Sourced Converter for HVDC Application By M. Schwegmann; P. G. Kamp; B. Weis	[View] [Download]
Abstract: A new Voltage Sourced Converter (VSC) based system for High Voltage Direct Current transmission (HVDC) and Flexible AC Transmission Systems (FACTS) applications with a power rating of more than 200 MW and a DC-Link voltage up to ± 150 kV has been developed. The design of the system and the converters are discussed. Special attention is also paid to the failure modes and the series connection of Press Pack IGBT.