Results 151 to 160 of about 529 (183)
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A filter design methodology of a VSC-HVDC system
2013 IEEE International Autumn Meeting on Power Electronics and Computing (ROPEC), 2013This paper describes a methodology for the design of AC and DC filters of a VSC-HVDC system, based on mathematical calculations and simulations in Matlab Simulink®. The methodology is implemented in a ± 125kV and 200MW VSC-HVDC system. The 3D-SVPWM modulation technique is used to control the VSC converters of the system as a method to reduce high ...
Daniel Perez Dorantes +2 more
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Analysis of oscillation modes in a VSC-HVDC system
2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2015Harmonic instability may occur when a controlled voltage source converter interacts with the local power grid in a power system. In this paper, oscillation modes are analyzed in a voltage source converter based high voltage direct current (VSC-HVDC) system.
Shan Jiang, Xin Tang
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DC line protection for VSC-HVDC system
2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012Voltage source converters based HVDC (VSC-HVDC) systems involving overhead transmission lines are prone to severe over-currents and over-voltages during dc line faults. This necessitates the operation of the system with some kind of protective devices to overcome the effects of dc line faults.
Wajid Ahmed, Premila Manohar
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Impact of VSC HVdc on AC System Generation
13th IET International Conference on AC and DC Power Transmission (ACDC 2017), 2017This paper investigates the impact of different control modes of VSC HVdc to the transient stability of power systems. VSC HVdc offers fast bi-directional power control in addition to fast ac voltage control. This feature is utilized in this study to enhance the transient stability of a conventional generator in a power system.
S. Arunprasanth +3 more
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Interactions between STATCOM and VSC HVDC in Dynamic GB System
7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014), 2014This paper analyses the operation and interaction of a STATCOM and a VSC HVDC link located in close electrical proximity in an AC system, taking into consideration of various controller configurations and operating conditions for both components. It is identified that the dynamic behaviour of one component can be substantially affected by a parametric ...
Shen, L, Barnes, M, Milanovic, Jovica
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Simplified Modeling of VSC-HVDC in Power System Stability Studies
IFAC Proceedings Volumes, 2014Abstract This paper presents a simplified modeling approach for a voltage source converter based high voltage DC transmission line (VSC-HVDC) for use in power system dynamic studies. In the AC grid sending-end and receiving-end converters (SEC and REC) of the HVDC system are represented by controlled Thevenin sources.
Shewarega, Fekadu, Erlich, István
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Modeling and Simulation of VSC-HVDC System
2021 International Conference on Intelligent Computing, Automation and Applications (ICAA), 2021Seyha Song +2 more
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Model of a VSC HVDC terminal attached to a weak AC system
Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004This paper presents an analytical non-linear model of the power controlling terminal of a VSC HVDC (Voltage Source Converter High Voltage Direct Current) transmission system attached to a weak (high impedance) AC network. In contrast to the standard 2 state model of a VSC, the proposed model explicitly includes the behaviour of the Phased Locked Loop ...
Durrant, Martyn +2 more
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Analysis of VSC-HVDC system connected to a weak AC system
2013 Annual IEEE India Conference (INDICON), 2013Modeling of a VSC-HVDC system is an important step in analyzing the performance of the VSC-HVDC system. In this paper, the modeling details of the converters and the DC transmission line connected to a weak AC system are presented. The weak AC system considered is an island system comprised of synchronous generators and some passive loads.
R. S. Geetha +2 more
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Frequency control capability of VSC-HVDC transmission system
11th IET International Conference on AC and DC Power Transmission, 2015High voltage direct current (HVDC) systems have been used as an effective solution to transmit power over long distances. Performance of HVDC systems has significantly improved with the emergence of voltage source converter based HVDC (VSC-HVDC). Increased controllability provides independent control of active and reactive power which facilitates ...
Elansari, A.S. +3 more
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