Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IET Digital Library |
|---|---|
| Author | Guan, Weide Huang, Shoudao Huang, Xiaoqing |
| Abstract | Modular multilevel converter (MMC) is widely used in medium- and high-voltage applications, but there are large capacitor voltage ripples on the sub-modules (SMs) when applied to low-speed applications, such as wind generator system. The method based on the injection of common-mode voltage and high-frequency current is the most effective solution at present, but it will bring new problems. To solve these problems, a modified MMC is proposed in this study. Firstly, coupled inductors and LC resonance circuit are adopted as the power transfer channel between the upper arm and lower arm of the MMC, to eliminate the low-frequency voltage ripple. The theoretical analysis and design guideline of the coupled inductors and LC resonance circuit are discussed in detail before the explanation of SM voltage fluctuation suppression method. Secondly, an improved voltage fluctuation suppression method, named limited compensation method, is presented to replace the conventional full compensation method to decrease the magnitude of injected high-frequency current, thereby reducing the current ratings of power devices, size of inductors, and the cost of system. In the end, MATLAB/SIMULINK simulations and a 2 kW down-scaled prototype are performed to validate the effectiveness of the proposed solution and its control scheme. |
| Starting Page | 3185 |
| Ending Page | 3196 |
| Page Count | 12 |
| ISSN | 17554535 |
| Volume Number | 12 |
| e-ISSN | 17554543 |
| Issue Number | Issue 12, Oct (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/12/12 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2018.6018 |
| Journal | IET Power Electronics |
| Publisher Date | 2019-07-24 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Capacitor Capacitor Voltage Ripple Suppression Method Capacitor Voltage Ripples Common-mode Voltage Compensation Method Control of Electric Power System Coupled Inductor Design Guideline Electromagnetic Compatibility High-voltage Application Improved Voltage Fluctuation Suppression Method Inductor Injected High-frequency Current Interference Interference Suppression LC Resonance Circuit Low-frequency Voltage Ripple Low-speed Application Lower Arm Medium-voltage Wind Generator System Modified MMC Modular Multilevel Converter Other Power Apparatus And Electric Machine Power Capacitor Power Converter Power Grid Power Supplies to Apparatus Power Transfer Channel SM Voltage Fluctuation Suppression Method Upper Arm Voltage Control |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|