Continuous p-v-Characteristic Parameterization for Multi-Terminal HVDC Systems

Marten, Anne-Katrin; Sass, Florian; Westermann, Dirk

doi:10.1109/tpwrd.2016.2599821

Cited by 9 publications

(2 citation statements)

References 26 publications

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“…The curves with recommended control factors are between the two curves with α = 0.16 and α = 0.035. Actually, the P-V characteristic described in this paper is achieved by adjusting the setpoints of the voltage droop control method, which is different from the conventional method by directly tuning the P-V characteristic curves [29]. As observed in Fig.…”

Section: Influence Of Control Factormentioning

confidence: 99%

Adaptive Reference Power Based Voltage Droop Control for VSC-MTDC Systems

Wang¹,

Qiu²,

Liu

et al. 2023

Journal of Modern Power Systems and Clean Energy

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Featuring low communication requirements and high reliability, the voltage droop control method is widely adopted in the voltage source converter based multi-terminal direct current (VSC-MTDC) system for autonomous DC voltage regulation and power-sharing. However, the traditional voltage droop control method with fixed droop gain is criticized for over-limit DC voltage deviation in case of large power disturbances, which can threaten stable operation of the entire VSC-MTDC system. To tackle this problem, this paper proposes an adaptive reference power based voltage droop control method, which changes the reference power to compensate the power deviation for droop-controlled voltage source converters (VSCs). Besides retaining the merits of the traditional voltage droop control method, both DC voltage deviation reduction and power distribution improvement can be achieved by utilizing local information and a specific control factor in the proposed method. Basic principles and key features of the proposed method are described. Detailed analyses on the effects of the control factor on DC voltage deviation and imbalanced power-sharing are discussed, and the selection principle of the control factor is proposed. Finally, the effectiveness of the proposed method is validated by the simulations on a five-terminal VSC based highvoltage direct current (VSC-HVDC) system.

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Section: Influence Of Control Factormentioning

confidence: 99%

Adaptive Reference Power Based Voltage Droop Control for VSC-MTDC Systems

Wang¹,

Qiu²,

Liu

et al. 2023

Journal of Modern Power Systems and Clean Energy

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“…Various DC voltage control strategies are reported in the literature [8], [9], [10], [11], [12], [13], [14]. This paper mainly focus on droop control method [9], [12], [14], [15], [16], [17], [18], which is usually characterized by power vs DC voltage (P vs U ) or current vs DC voltage (I vs U ) curves.…”

Section: Introductionmentioning

confidence: 99%

Control-Induced Time-Scale Separation for Multiterminal High-Voltage Direct Current Systems Using Droop Control

Chen

Carrizosa

Damm

et al. 2020

IEEE Trans. Contr. Syst. Technol.

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This paper introduces a control induced timescale separation scheme for a multi-terminal high voltage direct current system, used for large scale integration of renewable energy sources. The main idea is to provide a detailed theoretical analysis, to the long stand practice that consists of empirical design of two control loops for the terminals. Experience has shown that such loops, i.e. current and voltage control loop, when heuristically tuned, often display very different dynamics. In the present paper, singular perturbation theory is applied to give explanation and fundamental analysis on why and how the two control loops work, and how to achieve the timescale separation between various state variables. Mathematical analysis is also carried out to illustrate a clear trade-off between system performance (actuator constraint) and the size of the region of attraction of the controller. Numerical simulations for a system with four terminals are presented to evaluate the system performance and illustrate the theoretical analysis.

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Modeling and Control of HVDC Systems

Chaudhuri

2019

Integrating Wind Energy to Weak Power Grids Using High Voltage Direct Current Technology

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Continuous p-v-Characteristic Parameterization for Multi-Terminal HVDC Systems

Cited by 9 publications

References 26 publications

Adaptive Reference Power Based Voltage Droop Control for VSC-MTDC Systems

Adaptive Reference Power Based Voltage Droop Control for VSC-MTDC Systems

Control-Induced Time-Scale Separation for Multiterminal High-Voltage Direct Current Systems Using Droop Control

Modeling and Control of HVDC Systems

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