Model of a VSC HVDC terminal attached to a weak AC system

Durrant, Martyn; Werner, Herbert; Abbott, K.

doi:10.1109/cca.2003.1223288

Cited by 87 publications

(45 citation statements)

References 5 publications

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“…However, this model does not focus on VSC"s dynamic characteristics in DC-link voltage control time scale. In [17], an eighth order VSC"s small-signal model attached to weak grid is developed to study the effects of PLL and the AC filter behavior on system stability in weak grid. State-space equations to represent small-signal model of VSC in wind turbine are presented in [18]- [20].…”

Section: Nomenclaturementioning

confidence: 99%

Modeling of VSC Connected to Weak Grid for Stability Analysis of DC-Link Voltage Control

Huang

Yuan

et al. 2015

IEEE J. Emerg. Sel. Topics Power Electron.

286

126

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Section: Nomenclaturementioning

confidence: 99%

Modeling of VSC Connected to Weak Grid for Stability Analysis of DC-Link Voltage Control

Huang

Yuan

et al. 2015

IEEE J. Emerg. Sel. Topics Power Electron.

286

126

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“…In particular since a two layer structure is to be employed two distinct control models will have to be derived, as shown in the following. A dq representation is employed also for the control models, it should be noted however that the fundamental difference with respect to previous work [5], [6], [7], [8] is that the phase of the related Park transformation is arbitrary, that is it does not rely on a PLL.…”

Section: Discrete Time Control Modelsmentioning

confidence: 99%

“…However, although one of the original purposes for the use of VSC HVDC systems was the possibility to connect to very weak ac systems, difficulties have been experienced nonetheless, often in association with the phase locked loop (PLL) used to perform the d-q/active-reactive power decoupling transformation [5], [6], [7], [8]. G This paper features the description of a model predictive control (MPC) approach for VSC HVDC transmission.…”

Section: Introductionmentioning

confidence: 99%

Multivariable predictive control of voltage source converter HVDC transmission systems

Beccuti

Papafotiou

Harnefors³

2010

2010 IEEE International Symposium on Industrial Electronics

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This paper contains a model predictive control (MPC) approach for high voltage direct current (HVDC) lines, where in particular the voltage source converter (VSC) HVDC configuration is investigated. The target is to develop a control method which, given the requested power and alternating/direct voltage references, yields an appropriate set of voltage references to be fed to the modulation scheme of the VSC. Since the chosen control approach directly encompasses the multivariable nature of the problem, no phase locked loop (PLL) is required for dq frame alignment, increasing performance and facilitating tuning in the case of weak grids. The considered system is described, the derived control procedure is illustrated and numerical simulations are presented showing the performance of the proposed approach.

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“…In order to reduce the total simulation time required for the analysis of the VSC-HVDC system an equivalent model [7] is used to model the VSC-HVDC during the simulation. Such an equivalent model allows the use of a larger time step in the simulation as compared to if the complete model is used.…”

Section: A Equivalent Circuit Of the Vsc-hvdcmentioning

confidence: 99%

A Novel Control of VSC-HVDC for Improving Power Quality of an Industrial Plant

2006

IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics

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In this paper a novel control system for the VSC-HVDC supply of an industrial plant is proposed. The dynamic performance of the system is investigated during unbalanced faults. The control system of the VSC-HVDC consists of an outer controller and a vector current controller through phase reactors, an ac filter and a transformer. The impact of the current limit of the VSC-HVDC converters is also studied. The modified inner current controller is proposed to avoid overcurrent. Simulation results of the studied system, using PSCAD/EMTDC, show that the proposed control strategy can fulfill the objective of controlling the dc voltage on the dc link, the ac voltage and the frequency at the point of common coupling. A comparison between a pure ac supply and a VSC-HVDC supply shows that the use of a VSC-HVDC supply significantly enhances the quality of power supply to the industrial plant.

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Model of a VSC HVDC terminal attached to a weak AC system

Cited by 87 publications

References 5 publications

Modeling of VSC Connected to Weak Grid for Stability Analysis of DC-Link Voltage Control

Modeling of VSC Connected to Weak Grid for Stability Analysis of DC-Link Voltage Control

Multivariable predictive control of voltage source converter HVDC transmission systems

A Novel Control of VSC-HVDC for Improving Power Quality of an Industrial Plant

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