Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nishida, Y. Aikawa, N. Sumiyoshi, S. Yamashita, H. Omori, H. |
| Copyright Year | 2004 |
| Description | Author affiliation: Dept. of Electr. & Electron. Eng., Nihon Univ., Koriyama, Japan (Nishida, Y.; Aikawa, N.) |
| Abstract | A novel utility-interactive inverter for photovoltaic system is proposed. This inverter has no transformer to reduce the size but has a unique power processing system consisting of a DC-DC converter and a single-phase semibridge inverter. The DC-DC converter is a two-quadrant type and performs boost/buck-mode operations to feed-forward/feed-back the instantaneous power to/from the utility. The feed-backing function is rarely utilized for such as controlling the power-factor in utility side to regulate the utility voltage. Although both the DC-DC converter and the inverter operate with high-frequency switching at all the time in the conventional scheme, only the DC-DC converter or the inverter operate with high-frequency switching in the proposed one. Thus, the switching losses are reduced significantly in the new system. Additionally, the DC-DC converter controls the input current so that the DC-inductor traps the ripple-power fed back from the utility. As a result, a large capacitor is not necessary to connect in the input of inverter in this new system. In the products, the efficiency marked very high value (i.e., 95.5 [%] and 95.1 [%] in the half-load and the rated full-load condition of 4.5 kW, respectively) where the utility voltage is 240 [V/sub RMS/] and the solar-cells voltage is 200 [V]. On the other hand, the total-harmonic-distortion of the utility current of the product marked very low value (i.e., 1.6 [%]) in the rated condition. The size of the power unit including the heat sink is reduced to 2/3 of the conventional one. |
| Sponsorship | China Electrotechnical Soc. (CES) National Natural Sci. Found. of China (NSFC) |
| Starting Page | 1785 |
| Ending Page | 1790 |
| File Size | 613257 |
| Page Count | 6 |
| File Format | |
| ISBN | 7560518699 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-08-14 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Xi'an Jiaotong Univ. Press |
| Subject Keyword | Photovoltaic systems Pulse width modulation inverters DC-DC power converters Capacitors Switching converters Voltage control Control systems Costs Switching loss Power engineering and energy |
| Content Type | Text |
| Resource Type | Article |
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...
|