MMC Stored Energy Participation to the DC Bus Voltage Control in an HVDC Link

Samimi, Shabab; Gruson, François; Delarue, Philippe; Colas, Frédéric; Belhaouane, Mohamed Moez; Guillaud, Xavier

doi:10.1109/tpwrd.2016.2540926

Cited by 31 publications

(15 citation statements)

References 22 publications

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“…Ctot ulj to the square of the dc bus voltage u 2 HVDC , the MMC stored energy can be related to the dc bus as studied in [29]. Equation 14becomes:…”

Section: B Multilevel Modular Convertermentioning

confidence: 99%

Overvoltage Limitation Method of an Offshore Wind Farm With DC Series-Parallel Collection Grid

Zhang

Gruson

et al. 2019

IEEE Trans. Sustain. Energy

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This paper describes the characteristics of a series parallel wind farm (SPWF) topology and investigates the control strategy to ensure its safe operation. The SPWF was found to have advantages over other pure dc wind farm architectures in terms of lower construction cost and lower power losses in the collection system. However, unbalance power productions among the wind turbines cause the variations of their output voltages, which may endanger the safe operation of the entire wind farm. This paper proposes a global control strategy that prevents wind turbines from operating above their overvoltage capabilities. With an active participation of the onshore converter, the proposed strategy allows maximum power point tracking (MPPT) of the wind turbines. The practical limitations of this strategy are discussed and improvements are given. The feasibility of the proposed method is validated in a simulation of 300 MW wind farm developed in EMTP-RV.

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“…Ctot ulj to the square of the dc bus voltage u 2 HVDC , the MMC stored energy can be related to the dc bus as studied in [29]. Equation 14becomes:…”

Section: B Multilevel Modular Convertermentioning

confidence: 99%

Overvoltage Limitation Method of an Offshore Wind Farm With DC Series-Parallel Collection Grid

Zhang

Gruson

et al. 2019

IEEE Trans. Sustain. Energy

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“…MMCs produce an output voltage whose shape is close to sinusoidal voltage. As a result, MMCs need lower output filter requirement, particularly at high levels, in MMC‐based HVDC application . Typical network models of VSC‐ and MMC‐based HVDC system are illustrated in Figure A and B, respectively.…”

Section: Application Areasmentioning

confidence: 99%

“…As a result, MMCs need lower output filter requirement, particularly at high levels, in MMC-based HVDC application. [156][157][158][159] Typical network models of VSC-and MMC-based HVDC system are illustrated in Figure 11A and 11B, respectively.…”

Section: Hvdc Systemsmentioning

confidence: 99%

Recent contributions and future prospects of the modular multilevel converters: A comprehensive review

Kurtoğlu

Eroğlu

Arslan

et al. 2018

Int Trans Electr Energ Syst

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Summary The modular multilevel converters (MMCs) are frequently preferred for medium and high power energy conversion systems thanks to their modular structure and high quality output waveform. The remarkable studies related to the MMC have been carried out in recent years, which are mainly focused on its topology, control, or application. In this paper, MMC circuit topologies consisting of traditional submodule cells and new proposed configurations are introduced, and their control process, modulation techniques, and application areas are discussed in order to provide the readers the current state of the art of MMC technology. A wide part of this article is devoted to demonstrate the recent contributions arising in MMC studies. In this context, this paper not only outlines the circuit topology, control objectives, and applications of the MMC but also presents a comprehensive review, principally in terms of the latest developments of it. Ultimately, detailed proposals and new possible topics are provided to drive future expectations of MMC technology.

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“…It also decouples cell capacitor voltage regulation, and hence the AC voltage, from the DC link. In this manner, the energy stored in the cell capacitors can be manipulated to adjust DC components of the modulation signals, and the CSCC could potentially be eliminated [7].…”

Section: Energy Controller (Mmc)mentioning

confidence: 99%

“…Typical modern multilevel HVDC converters, have complex power circuit structures with complex internal dynamics (inter-cell, inter-arm and inter-phase dynamics), that require a number of well-designed dedicated controllers to ensure converter stability over the entire operation range [5,6,7,8]. Analytical performance evaluation of such converters is time-consuming and could be ineffective.…”

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confidence: 99%

Steady-state performance of state-of-the-art modular multilevel and alternate arm converters with DC fault-blocking capability

Vozikis¹,

Adam²,

Rault

et al. 2018

International Journal of Electrical Power & Energy Systems

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This paper presents a comparison of the steady-state behaviour of four state-of-the-art HVDC converters with DC fault-blocking capability, based on the modular multilevel and alternate arm converter topologies.AC and DC power quality, and semiconductor losses are compared, whilst considering different operating conditions and design parameters, such as the number of cells and component sizing. Such comparative studies have been performed using high-fidelity converter models which include detailed representation of the control systems, and of the converter thermal circuit. The main findings of this comprehensive comparison reveal that, the mixed cell modular converter offers the best design trade-off in terms of power losses and quality, and control range. Moreover, it has been established that the modular converter with a reduced number of cells per arm and with each cell rated at high voltage (i.e. 10-20 kV), tends to exhibit higher switching losses and relatively poor power quality at the DC side.

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MMC Stored Energy Participation to the DC Bus Voltage Control in an HVDC Link

Cited by 31 publications

References 22 publications

Overvoltage Limitation Method of an Offshore Wind Farm With DC Series-Parallel Collection Grid

Overvoltage Limitation Method of an Offshore Wind Farm With DC Series-Parallel Collection Grid

Recent contributions and future prospects of the modular multilevel converters: A comprehensive review

Steady-state performance of state-of-the-art modular multilevel and alternate arm converters with DC fault-blocking capability

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