Cascaded- and Modular-Multilevel Converter Laboratory Test System Options: A Review

Heath, Theodor; Barnes, Mike; Judge, Paul D.; Chaffey, Geraint; Clemow, Phil; Green, Tim; Green, Peter R.; Wylie, James D.; Konstantinou, Georgios; Ceballos, Salvador; Pou, Josep; Belhaouane, Mohamed Moez; Zhang, Haibo; Guillaud, Xavier; Andrews, Jack

doi:10.1109/access.2021.3066261

Cited by 17 publications

(6 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The synchronization process compares the reference frequency of the master controller and the local controller, and the error is compensated (10) where is the reference frequency, is the error and is the frequency of a local controller. Similarly, the time error can be determined in (11) as a function of frequency and compensated when needed.…”

Section: Modular Distributed Fault-tolerant Controllermentioning

confidence: 99%

“…Besides, the computational burden, modification of the controller and the communication links can be pretty challenging for high voltage MMC applications due to a vast number of power modules. A centralized controller is currently adopted for MMC-based medium voltage motor drive applications [10] or laboratory scale prototype applications [11]. The CCU limits the scalability and modularity features of an MMC because the entire control system needs modification in case of any hardware changes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Implementation of a Modular Distributed Fault-tolerant Controller for MMC Applications

Isik¹,

Burugula²,

Alharbi³

et al. 2022

Preprint

View full text Add to dashboard Cite

Centralized control algorithm limits the hardware flexibility of a Modular Multilevel Converter (MMC). Therefore, industrial MMC applications have started adopting distributed control structures. Even though distributed controller reduces a single point of failure risk compared to the centralized controller, the failure risk of the entire control systems increases due to the number of local controllers. However, the distributed controller can be programmed in such a way as to bypass the faulty local controller and take care of the power modules with the adjacent local controllers. This paper implements a modular distributed fault-tolerant controller for a scaled laboratory MMC prototype. Experimental results show that an MMC can operate without interruption, even under two local controller failures. Besides, the experimental results are verified with the Opal-RT, a real-time simulator with the same controller in a Control Hardware in Loop (CHIL) environment.

show abstract

Section: Modular Distributed Fault-tolerant Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Implementation of a Modular Distributed Fault-tolerant Controller for MMC Applications

Isik¹,

Burugula²,

Alharbi³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Since most renewable energy resources such as offshore wind farms are situated at remote locations, the requirements for long-distance power transmission and asynchronous interconnections are increasing [6]. HVDC is wellproven technology to meet these requirements and is a promising technology for future power systems [6,10,11]. MMC-HVDC for an offshore wind farm is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

A Detailed Review of MMC Circuit Topologies and Modelling Issues

Soomro

Akhtar

Hussain

et al. 2022

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

MMC is a promising technology for MTDC systems and would transform into the concept of Supergrids in the near future. The salient features of MMC are modularity, reduced dv/dt and di/dt stress on switches, voltage and power scalability, inherent fault blocking capacity, transformerless operation, and improved power quality. However, there are some technical issues and challenges to be critically analysed and addressed. There is room for development of novel and enhanced MMC based on SM configurations to enable higher efficiency, improved power quality, compactness, and DC fault blocking capacity. Moreover, development of efficient and accurate models is required for the studies of MTDC grids during steady-state and transient conditions. Literature review suggests a need for studying and comparing different MMC modelling approaches because no modelling technique can be best suited for all applications. The main contribution of this paper is to provide a comprehensive review of recent developments in MMC in terms of SM configurations. This paper also presents an in-depth review of systematic comparison of different models of MMC, which can enable appropriate selection of model based on target studies and desired accuracy and efficiency. Finally, the associated research challenges and future trends are presented.

show abstract

“…The authors in [10] present a review of projects of multilevel converters from different laboratories used for academic purposes. In [11] it is designed a versatile teaching platform for the control of three-phase motor and inverter experiments.…”

Section: Introductionmentioning

confidence: 99%

Development of a Didactic Platform for Flexible Power Electronic Converters

França¹,

Pinto²,

Mendonca³

et al. 2022

Eletrônica de Potência

View full text Add to dashboard Cite

Power electronic converters are the subject of several studies and applications. Knowledge about those converters is essential for several technical and undergraduate courses in the field of Electrical Engineering and related areas.The presence of converter modules in laboratories can be beneficial for experimental validations in academic research and educational purposes, for allowing students to have practical contact with different converter topologies and applications. However, the commercially available power converters are generally manufactured for specific applications, with poor versatility and high cost, when applied for academic purposes. For this reason, several laboratories propose the design of versatile converters, mainly for multilevel converter research. Nevertheless, most of these projects present module designs based on half-bridge topology due to their low cost. Therefore, this project topology requires more modules to operate as topologies based on a full-bridge converter. Besides, modules based on full-bridge topology can also work in a half-bridge configuration. Thus, this work presents the design of full-bridge modules capable of operating as different types of converters, as well as the project of the dc-link voltage measurement, isolated power supply and bypass circuits. Moreover, this work addresses the heatsink choice, the thermal evaluation for the semiconductor devices and the realization of galvanic isolation between the signal and power circuits.

show abstract

Cascaded- and Modular-Multilevel Converter Laboratory Test System Options: A Review

Cited by 17 publications

References 47 publications

Implementation of a Modular Distributed Fault-tolerant Controller for MMC Applications

Implementation of a Modular Distributed Fault-tolerant Controller for MMC Applications

A Detailed Review of MMC Circuit Topologies and Modelling Issues

Development of a Didactic Platform for Flexible Power Electronic Converters

Contact Info

Product

Resources

About