Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ramachandran, A. Reddy, M.C. |
| Copyright Year | 2006 |
| Description | Author affiliation: N.A.L., Bangalore (Ramachandran, A.) |
| Abstract | Mitigation of electro magnetic interference (EMI) in PWM inverter fed a.c. induction motor adjustable speed drives is becoming an important issue. In this paper the power converters are viewed totally in a different way from that of the normal viewpoint of energy conversion. It has been found that the converter itself is a common mode voltage generator. As the switching speeds of the converters have gone up due to the advent of modern power electronic devices like the IGBT and at the same time the parasitic coupling becomes the dominant side effect. In addition, the harmonics and the commonly unwanted noise signals produced by the pulse width modulation also produce the EMI. This paper presents the design, implementation and measurement of a novel method of sensing and mitigation of unwanted conducted EMI noise voltages produced by the PWM inverter and inverter devices. The LISN, current probe and other associated circuits are used to mitigate the unwanted noise voltages. The proposed system is a new method based on sensing the individual phase current, by the current transformer (CT). The individual voltage from the current transformer secondary is amplified and summed to get the common mode voltage for mitigating the EMI from the output terminals of the PWM inverter within the acceptable limits. The standard LISN, the standard current probes and the necessary circuits are used for filtering, measurement and mitigation of the unwanted signals. This system can be used in any application regardless of its working voltage. Experimental results are presented to verify the feasibility of the proposed system. |
| Starting Page | 2337 |
| Ending Page | 2342 |
| File Size | 7064543 |
| Page Count | 6 |
| File Format | |
| ISBN | 1424407257 |
| DOI | 10.1109/ICIT.2006.372602 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-12-15 |
| Publisher Place | India |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Electromagnetic interference Pulse width modulation inverters Induction motors Variable speed drives Circuit noise Current transformers Voltage Pulse width modulation Probes Measurement standards |
| 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...
|