A DC voltage control strategy for MMC MTDC grids incorporating multiple master stations

Spallarossa, C. E.; Green, T. C.; Chang, Lin; Wu, Xueguang

doi:10.1109/tdc.2014.6863534

Cited by 25 publications

(9 citation statements)

References 11 publications

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“…5. Considering (12) and 13, in the steady state, the deviation of the active power transferred of the DC voltage droop control station satisfies: (15) This means that in steady state, the steady-state transmission power deviation of the DC grid is minimized with a small voltage margin value, which can also ensure the DC system operates near the rated voltage.…”

Section: ) Steady State Control Characteristicsmentioning

confidence: 99%

“…For the master-slave control strategy, only the master station is responsible for the constant DC voltage control while other stations are responsible for the active power control [13], and once the master station quits operation due to a fault, the system voltage will be out of control which seriously affected the system reliability [14], [15].…”

Section: Introductionmentioning

confidence: 99%

“…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%

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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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Section: ) Steady State Control Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Zhou

Zhan

et al. 2019

IEEE Access

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“…Figure 5. Indirect implementation of DC voltage droop as a contribution to a DC voltage controller loop [16], [33]- [36].…”

Section: Control Implementationmentioning

confidence: 99%

A categorization of converter station controllers within multi-terminal DC transmission systems

Irnawan

Silva

Bak

et al. 2016

2016 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)

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Abstract-As more and more VSC-HVDC links are planned and commissioned, interconnection of neighboring links or connection to an existing link becomes a feasible step towards secure and reliable multi-terminal DC (MTDC) transmission systems. Multi-vendor MTDC (MV-MTDC) operation is anticipated as an impact of this gradual DC grids development. In order to achieve certain operation conditions, DC grid controller needs to send specific control settings to individual converter station controls. One of the challenges in MV-MTDC transmission systems occurs in coordination of converters since different types of controller might exist in the same system. It is therefore important to identify the parameters required by the converter station controllers to ensure a smooth coordination. In this paper, different converter station controllers available in the literatures are categorized. Challenges of converter station control coordination are also discussed.

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“…Future HVDC transmission network is likely to have multiple terminals in the form of multiterminal DC (MTDC) grid network. MTDC system is a viable solution for connecting remotely located offshore wind energy resources to onshore AC grids [1]. At the initial stage of HVDC technology, the point-to-point HVDC systems used line commutated converters (LCC) [2].…”

Section: Introductionmentioning

confidence: 99%

Controller design for MTDC grid to enhance power sharing and stability

Yadav

Prasad

Kishor

et al. 2020

IET Generation, Transmission & Distribution

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A DC voltage control strategy for MMC MTDC grids incorporating multiple master stations

Cited by 25 publications

References 11 publications

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

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

A categorization of converter station controllers within multi-terminal DC transmission systems

Controller design for MTDC grid to enhance power sharing and stability

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