Droop control for loss minimization in HVDC multi-terminal transmission systems for large offshore wind farms

Aragüés‐Peñalba, Mònica; Egea‐Àlvarez, Agustí; Arellano, Samuel Galceran; Gomis‐Bellmunt, Oriol

doi:10.1016/j.epsr.2014.03.013

Cited by 77 publications

(52 citation statements)

References 11 publications

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“…For instance, in [10][11][12], an optimisation algorithm is proposed to generate voltage set-points to slack buses with the aim of minimising the system losses. With a similar objective, Aragüés-Peñalba et al [13] present an optimal tertiary control for a MT-HVDC network based on droop control. In this case, the tertiary control produces the set-points for the power control.…”

Section: Hierarchical Control Structure In Mt-hvdc Networkmentioning

confidence: 99%

Control of multi-terminal HVDC networks towards wind power integration: A review

Bianchi

Domínguez‐García

Gomis‐Bellmunt

2016

Renewable and Sustainable Energy Reviews

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More interconnections among countries and synchronous areas are foreseen in order to fulfil the EU 2050 Target on the renewable generation share. One proposal to accomplish this challenging objective is the development of the socalled European SuperGrid. Multi-terminal HVDC networks are emerging as the most promising technologies to develop such a concept. Moreover, multiterminal HVDC grids are based on highly controllable devices, which may allow not only transmitting power, but also supporting the AC grids to ensure a secure and stable operation. This article aims to present an overview of different control schemes for multi-terminal HVDC grids, including the control of the power converters and the controls for power sharing and the provision of ancillary services. The article also analyses the proposed modifications of the existing control schemes to manage high participation shares of wind power generation in multi-terminal grids.

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Section: Hierarchical Control Structure In Mt-hvdc Networkmentioning

confidence: 99%

Control of multi-terminal HVDC networks towards wind power integration: A review

Bianchi

Domínguez‐García

Gomis‐Bellmunt

2016

Renewable and Sustainable Energy Reviews

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“…MW kA kV (12) A three-phase-to-ground fault in the ac grid behind Converter-1 results in reduction in power transferred into the dc grid from the pre-fault level 838MW to about 110MW. The critical dc voltage, based on (8), becomes:…”

Section: 125mentioning

confidence: 99%

“…Considerable research has been conducted on modeling [6,7], control [8][9][10] and steady-state operation [11,12] of MultiTerminal High Voltage DC (MTDC) grids. Transient stability studies of MTDC grids have focused on investigating converter control strategies that enhance the dynamic performance of the dc grid during an ac fault.…”

Section: Introductionmentioning

confidence: 99%

Transient stability analysis in multi-terminal VSC-HVDC grids

Endegnanew

Uhlen

Haileselassie

et al. 2016

2016 Power Systems Computation Conference (PSCC)

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Abstract-A novel approach to transient stability analysis in multi-terminal high voltage direct current (MTDC) grids is presented in this paper. A symmetrical three-phase fault in an ac grid connected to a rectifier terminal of the MTDC grid causes the power injected into the dc grid to decrease, which in turn leads to a lower dc voltage in the MTDC grid. If dc voltage drops below a critical voltage limit before the ac fault is cleared, then the dc grid becomes unstable and its operation is disrupted. An analytical approach is proposed in this paper to calculate the critical clearing time of a fault in an ac grid behind a rectifier terminal beyond which dc voltage collapse occurs. A fiveterminal MTDC grid modeled in EMTDC/PSCAD is used to validate the results obtained with the analytical method.

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“…Several numbers of research have focused on the designing of the secondary control layer to minimize transmission losses [9][10][11][12], and total transmission and converters losses [13] considering voltage-droop control [14]. It is done by calculating optimum droop reference voltages.…”

Section: Introductionmentioning

confidence: 99%

Analysis on impacts of the shunt conductances in multi-terminal HVDC grids optimal power-flow

Yazdi

Rouzbehi

Candela

et al. 2017

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

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Droop control for loss minimization in HVDC multi-terminal transmission systems for large offshore wind farms

Cited by 77 publications

References 11 publications

Control of multi-terminal HVDC networks towards wind power integration: A review

Control of multi-terminal HVDC networks towards wind power integration: A review

Transient stability analysis in multi-terminal VSC-HVDC grids

Analysis on impacts of the shunt conductances in multi-terminal HVDC grids optimal power-flow

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