Validation of a MMC model in a real-time simulation platform for industrial HIL tests

Dennetière, Sébastien; Saad, Hani; Clerc, Bertrand; Ghahremani, Esmaeil; Wei, Li; Bélanger, Jean

doi:10.1109/pesgm.2015.7286153

Cited by 13 publications

(3 citation statements)

References 5 publications

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“…Fig. 14 Power circuit and control complexity Low and proven [5], [23], [24] High and proven [25], [26] Moderate and promising (22), which is different from that of the EMMC.…”

Section: Emmc Variantsmentioning

confidence: 99%

Enhanced Modular Multilevel Converter for HVdc Applications: Assessments of Dynamic and Transient Responses to AC and DC Faults

Vozikis

Adam

Rault³

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

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This paper describes the operating principles and theoretical relationships that underpin the modelling and control system of the enhanced modular multilevel converter (EMMC). A full-scale model of a point-to-point HVdc link that employs EMMCs is used to examine its performance during normal operation in all four quadrants, and resiliency to symmetrical and asymmetrical ac and dc faults. Results of exhaustive simulation studies reveal that the improved ac and dc power qualities, which are achieved by incorporation of a few full-bridge cells into the arms of conventional half-bridge modular multilevel converter (HB-MMC) with medium-voltage cells to create the EMMC do not affect its ac and dc fault ride-through capability nor its dynamics during normal operation as active and reactive power set-points being varied. In addition, a variant of the EMMC is proposed, in which the number of full-bridge cells to be added into the arms of HB-MMC could be increased to offer bespoke features beyond that explicitly defined in original vision of the EMMC, such as reduced dc voltage operation during pole-toground dc fault, and potential extension of fault clearance times in multi-terminal HVdc grids. Moreover, the validity of the new variant has been confirmed using results obtained from highfidelity HVdc link models developed in EMPT-RV platform, in which the EMMCs are replaced by the proposed variant.

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“…Fig. 14 Power circuit and control complexity Low and proven [5], [23], [24] High and proven [25], [26] Moderate and promising (22), which is different from that of the EMMC.…”

Section: Emmc Variantsmentioning

confidence: 99%

Enhanced Modular Multilevel Converter for HVdc Applications: Assessments of Dynamic and Transient Responses to AC and DC Faults

Vozikis

Adam

Rault³

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

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“…In [17] the use of dynamic phasors was proposed, however, the behavior of individual SMs was not explicitly modeled, rendering this modeling approach unrealistic. A similar assumption was adopted in [18], [19], resulting in the need for different modeling schemes.…”

Section: MMC Real-time Modeling Perspectivesmentioning

confidence: 99%

Virtual Capacitor Concept for Computationally Efficient and Flexible Real-Time MMC Model

Milovanović¹,

Luo

Dujić

2021

IEEE Access

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This paper demonstrates the splitting of the modular multilevel converter real-time simulation model into several independent parts through the use of the virtual capacitor concept. As a result, the number of state-space matrices the real-time solver needs to take into account gets significantly reduced, offering the possibility for substantial reduction of the simulation step size. Consequently, real-time simulation quality increases. The proposed concept was verified on a large-scale hardware-in-the-loop system comprising seven RT Boxes, where the model of the physical system is deployed, and ABB PEC800 industrial controller, where control algorithms of the real power hardware are deployed and executed.

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“…With regard to modelling, concerted efforts from academia and industry in the last decade have resulted in development of universal modelling frameworks for MMC and hybrid converters, namely, Thevenin equivalent model which was initially developed in 1969 by Dommel in [1] and then extended to MMC in [2,3], generalized switching function model [4][5][6], and averaged model [7,8]. Detailed studies presented in [3,6,[9][10][11][12][13] confirm that all the aforementioned models are capable of reproducing the typical behaviours of modular and hybrid converters during normal operation, and AC and DC faults.…”

Section: Introductionmentioning

confidence: 99%

Interoperability of different voltage source converter topologies in HVDC grids

Guo¹,

Rahman²,

Adam³

et al. 2019

15th IET International Conference on AC and DC Power Transmission (ACDC 2019)

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This paper presents a detailed study of DC grid operation using a range of user-defined offline and real-time HVDC converter models which were rigorously validated against offline and real-time benchmarks. Provided that these models are destined for use in real-time hardware in the loop simulation and a wide range of offline system studies, this paper assesses their suitability for studying complex DC grids that consist of multiple voltage source converters which differ in their control range and fault ride-through capabilities. Detailed quantitative studies show that the offline and real-time DC grid models produce well matched results and provide efficient approaches to investigate DC grid operation during normal condition and AC and DC faults.

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Validation of a MMC model in a real-time simulation platform for industrial HIL tests

Cited by 13 publications

References 5 publications

Enhanced Modular Multilevel Converter for HVdc Applications: Assessments of Dynamic and Transient Responses to AC and DC Faults

Enhanced Modular Multilevel Converter for HVdc Applications: Assessments of Dynamic and Transient Responses to AC and DC Faults

Virtual Capacitor Concept for Computationally Efficient and Flexible Real-Time MMC Model

Interoperability of different voltage source converter topologies in HVDC grids

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