High reliability capacitor bank design for modular multilevel converter in MV applications

Najmi, Vahid; Wang, Jun; Burgos, Rolando; Boroyevich, Dushan

doi:10.1109/ecce.2014.6953515

Cited by 18 publications

(11 citation statements)

References 15 publications

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“…The reliability of power converter impacts the HVDC transmission downtime and repairs, influencing the operating cost and the energy produced [16] - [19].…”

Section: Converter Reliabilitymentioning

confidence: 99%

Cost-performance framework for the assessment of Modular Multilevel Converter in HVDC transmission applications

Evans

Dworakowski

Al-Kharaz

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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This article proposes a methodology of Cost-Performance Assessment (CPA) enabling the efficient cost evaluation required for the Cost-Benefit Analysis (CBA). The proposed method is applied for the Modular Multilevel Converter (MMC) in offshore wind high voltage direct current (HVDC) transmission. Thanks to the developed model, an analysis of submodule voltage rating is performed demonstrating the interest of this methodology in the evaluation of new technologies for HVDC transmission. The analysis shows that increasing the submodule (SM) voltage could lead to savings in the MMC cost and weight.

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“…The reliability of power converter impacts the HVDC transmission downtime and repairs, influencing the operating cost and the energy produced [16] - [19].…”

Section: Converter Reliabilitymentioning

confidence: 99%

Cost-performance framework for the assessment of Modular Multilevel Converter in HVDC transmission applications

Evans

Dworakowski

Al-Kharaz

et al. 2019

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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“…First, 1500 µF, 800 V, Type 947C Polypropylene, Film DC-Link Capacitors from Cornell Dubilier [24], [25] and second one, 1040 µF, 1500 V, E50 Electronicon Film [26] capacitor are considered. By using the structure of parallel internally connected of the capacitors within the capacitor bank [15], CDE ALE design leads to 6 parallel branches with 3 series capacitor in each leg. CDE film design has 5 parallel branches with 2 series individual capacitors and Electronicon will have 3 parallel capacitors.…”

Section: Modular Multilevel Convertersmentioning

confidence: 99%

“…The reliability oriented study and the reliability evaluation of the capacitor banks for the MMC in MV and HV applications has been carried out in [15] from the same authors of this article. In the aforementioned reliability analysis, fault tolerance ability of the capacitor bank is not considered within the reliability modeling.…”

Section: Introductionmentioning

confidence: 99%

“…Generally, there are three types of reliability modeling for systems or subsystems, which are so called: part counts, combinatorial and Markov state space model [10]. The reliability modeling methods which are employed in [15] are part counts and combinatorial models; however, these methods cannot model the fault tolerance behavior of the capacitor banks especially in the Film capacitor bank designs. In this paper, Markov state space model is used to provide more realistic reliability model of the capacitor bank.…”

Section: Introductionmentioning

confidence: 99%

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Reliability modeling of capacitor bank for Modular Multilevel Converter based on Markov State-Space Model

Najmi

Wang

Burgos

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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since capacitors are the main components which cause failure in medium voltage and high voltage power converters, it is very essential to study and assess the reliability of capacitors within a converter. In this paper, the reliability modeling of the capacitor bank for the Modular Multilevel Converters (MMC) based on Markov State-Space Model (MSSM) is carried out and then within a determined case study, reliability of the capacitor bank is evaluated by considering both Aluminum Electrolytic (ALE) Capacitor Bank (CB) and film CB designs. Furthermore, the comparison among the reliability modeling methods i.e. Part-Count, Combinatorial and Markov Model has been done and it is shown that the Markov Model result by considering the fault tolerance and redundancy for the capacitor bank are expected to be more accurate and it has more pragmatic results with respect to the other reliability models.

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“…To limit the circulating current, the arm inductor size should be selected quiet high or the circulating current suppressing controller should be employed [12]. Another issue regarding this topology is the number of the capacitor bank which is required for each module in MMC which leads to the huge size occupied by capacitors and reliability issues [13]- [14]. And moreover having high number of modules makes the control system more complex [15].…”

Section: Introductionmentioning

confidence: 99%

A new modeling approach for Modular Multilevel Converter (MMC) in D-Q frame

Najmi

Nazir

Burgos

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Modular Multilevel Converter (MMC) becomes an interesting topology especially for high voltage applications. Since, the Direct-Quadrature (D-Q) model of the MMC is not existent in the literature so far, in this paper, the D-Q model of the MMC is extracted analytically and simulated using SIMULINK/ MATLAB. To verify the MMC D-Q model, the result is compared with the ABC average and switching model of the MMC. The D-Q model of the MMC can be used to design and simplify the control of the inner and outer loop parameters of the MMC. Keywords-Modular Multilevel Converter (MMC); Switching Modeling; Three-Phase Average Modeling; Direct-Quadrature Modeling; Controller Design978-1-4799-6735-3/15/$31.00 ©2015 IEEE

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High reliability capacitor bank design for modular multilevel converter in MV applications

Cited by 18 publications

References 15 publications

Cost-performance framework for the assessment of Modular Multilevel Converter in HVDC transmission applications

Cost-performance framework for the assessment of Modular Multilevel Converter in HVDC transmission applications

Reliability modeling of capacitor bank for Modular Multilevel Converter based on Markov State-Space Model

A new modeling approach for Modular Multilevel Converter (MMC) in D-Q frame

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