Improved Analytical Model for the Study of Steady State Performance of Droop-Controlled VSC-MTDC Systems

Xiao, Liang; An, Ting; Bian, Zhipeng

doi:10.1109/tpwrs.2016.2601104

Cited by 54 publications

(32 citation statements)

References 23 publications

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“…There are various methods in the literature on the selection of droop constants. One of the simplest and robust approaches for the selection of droop constants is by performing a power flow analysis like in [30–32]. Further, the researchers in [33–35] utilised the secondary control like optimal power flow to decide the droop coefficients.…”

Section: Vsc‐mtdc Grid Controlmentioning

confidence: 99%

Hybrid control strategy for effective frequency regulation and power sharing in multi‐terminal HVDC grids

Kumar

Padhy

2020

IET Generation, Transmission & Distribution

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Section: Vsc‐mtdc Grid Controlmentioning

confidence: 99%

Hybrid control strategy for effective frequency regulation and power sharing in multi‐terminal HVDC grids

Kumar

Padhy

2020

IET Generation, Transmission & Distribution

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“…When the power of the load exceeds the capacity of the device, the DC side voltage will no longer be stable, and voltage drop will occur. In addition, the current should be less than the maximum allowable current of the power device, otherwise the device will be burned out [23][24][25]. Therefore, the minimum load is subject to the two constraints above, as shown in Equation (4).…”

Section: Constraint Of Disturbance Loadmentioning

confidence: 99%

A Method for the Realization of an Interruption Generator Based on Voltage Source Converters

Zhang

et al. 2017

Energies

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In this paper we described the structure and working principle of an interruption generator based on voltage source converters (VSCs). The main circuit parameters of the VSCs are determined according to the target of power transfer capability, harmonic suppression, and dynamic response capability. A state feedback linearization method in nonlinear differential geometry theory was used for dq axis current decoupling, based on the mathematical model used in the dq coordinate system of VSCs. The direct current control strategy was adopted to achieve the independent regulation of active power and reactive power. The proportional integral (PI) link was used to optimize the dynamic performance of the controller, and PI parameters were adjusted. Disturbance voltage waves were generated by the regular sampling method. PSCAD/EMTDC simulation results and physical prototype experiments showed that the device could generate various disturbance voltage waveforms steadily, and had good dynamic and steady-state performance.

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“…Moreover, the current streaming into the converter cannot be constrained [11]. Voltage droop control in [12] selects the droop parameters that take into account the steady‐state analysis of the system, the acceptable voltage deviation, and the maximum value of the control input current. This strategy reduces the impact of the disturbance of the DC voltage.…”

Section: Introductionmentioning

confidence: 99%

VSC‐HVDC system‐based on model predictive control integrated with offshore wind farms

Sultan

Kaddah

Eladl

2021

IET Renewable Power Gen

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Recently, the offshore wind farms (OWFs) have excellent potential in global power networks. So, the demand for high power and high‐quality transmission system is becoming more pressing with the fast growth of OWFs. A promising solution is provided by the voltage source converter‐high voltage direct current (VSC‐HVDC) system. This paper proposes a control method for controlling the VSC‐HVDC system to integrate OWFs into power grids based on model predictive control (MPC). To minimise the distortion and filtering of the harmonics injected into the utility grid, the receiving end converter of the VSC‐HVDC system is connected with LCL filter. The proposed control strategy maintains active/reactive power‐sharing with efficient regulation of AC voltage among the different OWFs operation conditions. The detailed system components modelling and simulation are executed in the MATLAB/Simulink environment, which is used to perform both dynamics and transient evaluation of the suggested control strategy. The acquired simulation results emphasize the capability of the proposed control strategy to maintain system stability under different operation conditions compared to the synchronous reference frame‐based current limiting droop control method (SRF‐based CLD).

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Improved Analytical Model for the Study of Steady State Performance of Droop-Controlled VSC-MTDC Systems

Cited by 54 publications

References 23 publications

Hybrid control strategy for effective frequency regulation and power sharing in multi‐terminal HVDC grids

Hybrid control strategy for effective frequency regulation and power sharing in multi‐terminal HVDC grids

A Method for the Realization of an Interruption Generator Based on Voltage Source Converters

VSC‐HVDC system‐based on model predictive control integrated with offshore wind farms

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