{"title":"An Efficient Technique for EMI Mitigation in Fluorescent Lamps using Frequency Modulation and Evolutionary Programming","authors":"V.Sekar, T.G.Palanivelu, B.Revathi","country":null,"institution":"","volume":37,"journal":"International Journal of Electrical and Computer Engineering","pagesStart":120,"pagesEnd":127,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/2816","abstract":"Electromagnetic interference (EMI) is one of the\r\nserious problems in most electrical and electronic appliances\r\nincluding fluorescent lamps. The electronic ballast used to regulate\r\nthe power flow through the lamp is the major cause for EMI. The\r\ninterference is because of the high frequency switching operation of\r\nthe ballast. Formerly, some EMI mitigation techniques were in\r\npractice, but they were not satisfactory because of the hardware\r\ncomplexity in the circuit design, increased parasitic components and\r\npower consumption and so on. The majority of the researchers have\r\ntheir spotlight only on EMI mitigation without considering the other\r\nconstraints such as cost, effective operation of the equipment etc. In\r\nthis paper, we propose a technique for EMI mitigation in fluorescent\r\nlamps by integrating Frequency Modulation and Evolutionary\r\nProgramming. By the Frequency Modulation technique, the\r\nswitching at a single central frequency is extended to a range of\r\nfrequencies, and so, the power is distributed throughout the range of\r\nfrequencies leading to EMI mitigation. But in order to meet the\r\noperating frequency of the ballast and the operating power of the\r\nfluorescent lamps, an optimal modulation index is necessary for\r\nFrequency Modulation. The optimal modulation index is determined\r\nusing Evolutionary Programming. Thereby, the proposed technique\r\nmitigates the EMI to a satisfactory level without disturbing the\r\noperation of the fluorescent lamp.","references":null,"publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 37, 2010"}