Planning a HVDC South American Pacific Electric Interconnection Based on MTDC

Acero, Fredy A.; Ríos, Mario Alberto Gaviria

doi:10.1109/tla.2021.9475866

Cited by 1 publication

(2 citation statements)

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“…By neglecting power loss of the converter, the output power of the AC system will be equal to the input power of the DC system as (4).…”

Section: Mathematical Modelling Of Ac/dc Convertermentioning

confidence: 99%

“…Regarding the widespread use of wind-based energies and integration of large-scale offshore wind farms (OWFs) in today's power systems, it is necessary for the power system operator to tackle with the related technical, economic, and environmental challenges [1][2][3]. For example, along with increasing the capacity of offshore wind farms and their distance from the power grid, there is considerable capacitive current in long AC cables, which constrains the transmission capacity, and it requires compensation of reactive power [4]. In this regard, the use of multi-terminal lines based on voltage source converter (VSC) will have a prominent role in integration of OWFs into the power system, and hence, many of recent researches have concentrated on modelling and control of these systems [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of a new robust controller for voltage regulation of DC link in wind‐farm‐side converter integrated with a hybrid AC and DC large‐scale power system

Bagheri

Yousefi

2023

IET Generation Trans & Dist

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The main aim of this paper is to improve dynamic performance of a multi-terminal DC (MTDC) grid in a wind-integrated AC power system through DC voltage control. The proposed approach is based on design of robust H ∞ controller and loop shaping along with mutual quality decomposition method (MQDM). For extracting transfer function of the plant, model of Master-Slave control system is converted to standard feedback control system. Then, based on the obtained difference between singular-value curves of the main open-loop system and the proposed method, the weighting functions of robust H ∞ controller are selected. In the next step, by using the MQDM technique, the transfer function ofthe system in state-space form is evaluated to extract gain of the robust controller. For practicality of the conducted approach, singular-value order reduction Hankel algorithm along with frequency response analysis have been used for designing the gain of the robust controller. The developed method has been implemented on the MTDC converter in the wind farm side to control the voltage of DC grid. The simulations are accomplished in MATLAB, where by considering different uncertainties in the DC grid, wind unit, and the AC grid, robustness of the proposed approach has been clearly demonstrated.

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“…By neglecting power loss of the converter, the output power of the AC system will be equal to the input power of the DC system as (4).…”

Section: Mathematical Modelling Of Ac/dc Convertermentioning

confidence: 99%