{"title":"Finite Control Set Model Predictive Control Strategy for MMC Arm Current With DC Bus Voltage Stabilization Under Unbalanced Grid Conditions","authors":"Xiaobing Niu, Runze Qiu, Jingwei Zhu, Xin Chow","doi":"10.1049/pel2.70023","DOIUrl":null,"url":null,"abstract":"<p>Finite Control Set Model Predictive Control (FCS-MPC) is widely used in Modular Multilevel Converters (MMC), but it faces challenges such as heavy computational burden and the complexity of designing weighting factors. Unbalanced grid voltage conditions frequently occur, and for grid-connected MMC with passive loads, the stability of the DC bus voltage is crucial. To address these issues, this paper proposes an arm current finite control set model predictive control strategy based on three-phase coupled modeling, along with a compensation mechanism for stabilizing the DC voltage. The proposed method is independent of the number of submodules and does not require weighting factor design, while effectively stabilizing the DC bus voltage without compromising the system's control objectives.</p>","PeriodicalId":56302,"journal":{"name":"IET Power Electronics","volume":"18 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/pel2.70023","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IET Power Electronics","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/pel2.70023","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Finite Control Set Model Predictive Control (FCS-MPC) is widely used in Modular Multilevel Converters (MMC), but it faces challenges such as heavy computational burden and the complexity of designing weighting factors. Unbalanced grid voltage conditions frequently occur, and for grid-connected MMC with passive loads, the stability of the DC bus voltage is crucial. To address these issues, this paper proposes an arm current finite control set model predictive control strategy based on three-phase coupled modeling, along with a compensation mechanism for stabilizing the DC voltage. The proposed method is independent of the number of submodules and does not require weighting factor design, while effectively stabilizing the DC bus voltage without compromising the system's control objectives.
期刊介绍：
IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes:
Applications:
Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances.
Technologies:
Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies.
Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials.
Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems.
Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques.
Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material.
Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest.
Special Issues. Current Call for papers:
Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf
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