Comparison of HVDC grid control strategies

Dewangan, Lokesh; Bahirat, Himanshu J.

doi:10.1109/appeec.2017.8308952

Cited by 12 publications

(6 citation statements)

References 14 publications

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“…A classical control strategy for the VSC-MTDC system can be divided to a DC voltage and active power. Based on research [19], the most straightforward control strategy is the DC voltage control, which sets one VSC for continuous voltage control and the other VSCs for constant power control. The voltage controlled VSC maintains the power balance of the entire DC grid.…”

Section: A Conventional Methodsmentioning

confidence: 99%

“…The VSC-MTHVDC employs two different types of control strategies: traditional control typically regulates the DC voltage and active power, and the droop control which is a generalisation of the traditional approach [19]. Both methods have been mathematically incorporated into the FUBM to resolve the OPF problem for the MT-HVDC system [10].…”

Section: Vsc-mthvdc Control Strategiesmentioning

confidence: 99%

“…A reliable control method for the MT-HVDC system is a droop control (i.e. Voltage Droop Control (VDC)), which unlike other approach controls does not require for a communication infrastructure [19]. The VDC is a distributed control technique utilised to balance the converters' instantaneous active power.…”

Section: B Droop Controlmentioning

confidence: 99%

See 2 more Smart Citations

Optimum Operational Planning of Wind-Integrated Power Systems With Embedded Multi-Terminal High Voltage Direct Current Links Using The Flexible Universal Branch Model

Hamzah

Kazemtabrizi

2023

2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Syst

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This paper presents a comprehensive analysis of a meshed MT-HVDC topology with three wind farms connected to the Substation Ring Topology (SRT) and investigates the steady state performance of the MT-HVDC system based on the VSC control strategies (i.e. conventional method and droop control), which was modelled via the FUBM model and produced results that is useful for solving Optimal Power Flow, particularly in the systems where hybrid AC/DC are adopted to integrate with the large-scale wind resources. The main focus is on the impact evaluation of various VSC control strategies. The outcome indicated that the VSC based MT-HVDC system performs well in terms of power transmission stability and reliability. The operational gain of the simulation results is that the Electricity system operator has the preference for the most robust strategy for the operational planning depending on the system requirements.

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Section: A Conventional Methodsmentioning

confidence: 99%

Section: Vsc-mthvdc Control Strategiesmentioning

confidence: 99%

See 1 more Smart Citation

Optimum Operational Planning of Wind-Integrated Power Systems With Embedded Multi-Terminal High Voltage Direct Current Links Using The Flexible Universal Branch Model

Hamzah

Kazemtabrizi

2023

2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Syst

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“…For the voltage-margin control strategy, the VSC stations can switch between fixed power and fixed direct-voltage operation, according to the voltage of the DC grid and the power rating of stations [12], [15], [16]. But the operating range matching for the VSC stations under voltage-margin control will become more complicated with the increasing number of VSC-MTDC terminals [17], [18].…”

Section: Introductionmentioning

confidence: 99%

AC Grids Characteristics Oriented Multi-Point Voltage Coordinated Control Strategy for VSC-MTDC

Zhou

Zhan

et al. 2019

IEEE Access

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Meshed dc grid technology is an attractive solution to improve the operational reliability of a voltage source converter-based multi-terminal HVDC transmission (VSC-MTDC) system; in addition, the VSC-MTDC becomes widely accepted for the integration of large-scale renewable energy and power supply to passive ac grids. Hence, the performance requirements of the dc voltage control and the power control of the VSC-MTDC system become higher, and this is the key issue of coordinated control strategies for the VSC-MTDC system. Considering that the mainstream coordinated control under the above new situations is facing challenges in terms of dc voltage dynamic control performance or dynamic power deviation, this paper proposes an ac grids characteristic-oriented multi-point voltage coordinated control strategy for the VSC-MTDC system to provide satisfactory dynamic dc voltage control performance with minimized dynamic and steady state power deviations of the converter stations. The theoretical analysis and the simulations results based on PSCAD/EMTDC are to verify the effectiveness of the proposed control strategy. INDEX TERMS HVDC transmission, VSC-MTDC, AC grids characteristics oriented, coordinated control strategy, voltage control, power control.

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“…A large body of research has been done on the control related issue of MTDC system [7] [8] and [9]. In all control schemes, the primary level controllers are simple PI controllers.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Identification of Controller Interaction and Limitation in VSC-HVDC Grid

Dewangan,

Bahirat

2019

Preprint

Self Cite

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With the advancement of the idea of HVDC grid, it becomes imperative to study the interaction of controller and identification of modes of oscillations. The paper presents the complete model of HVDC grid with detailed modeling of controllers, phase lock loops (PLLs), dc grid and the ac systems. An analytical method combining participation factors and eigen-sensitivity is proposed to determine the relative stability of the HVDC grid with respect to parameter variations. The paper also proposes the identification of inter-area and controller interaction modes on the basis of nearest distance between the eigenvalues using the derived sensitivity indices. The critical parameters are varied in a mixed short circuit ratio (SCR) HVDC grid and predictions from the analysis method are confirmed with time domain simulation in PSCAD simulator.

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Comparison of HVDC grid control strategies

Cited by 12 publications

References 14 publications

Optimum Operational Planning of Wind-Integrated Power Systems With Embedded Multi-Terminal High Voltage Direct Current Links Using The Flexible Universal Branch Model

Optimum Operational Planning of Wind-Integrated Power Systems With Embedded Multi-Terminal High Voltage Direct Current Links Using The Flexible Universal Branch Model

AC Grids Characteristics Oriented Multi-Point Voltage Coordinated Control Strategy for VSC-MTDC

Analysis and Identification of Controller Interaction and Limitation in VSC-HVDC Grid

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