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Cost Optimal Design of a Power Inductor by Sequential Gradient Search

  • Raju Basak
  • Arabinda Das
  • Amarnath Sanyal
Case Study
  • 69 Downloads

Abstract

Power inductors are used for compensating VAR generated by long EHV transmission lines and in electronic circuits. For the EHV-lines, the rating of the inductor is decided upon by techno-economic considerations on the basis of the line-susceptance. It is a high voltage high current device, absorbing little active power and large reactive power. The cost is quite high- hence the design should be made cost-optimally. The 3-phase power inductor is similar in construction to a 3-phase core-type transformer with the exception that it has only one winding per phase and each limb is provided with an air-gap, the length of which is decided upon by the inductance required. In this paper, a design methodology based on sequential gradient search technique and the corresponding algorithm leading to cost-optimal design of a 3-phase EHV power inductor has been presented. The case-study has been made on a 220 kV long line of NHPC running from Chukha HPS to Birpara of Coochbihar.

Keywords

EHV long line VAR generation Power inductor Cost-optimal design Sequential gradient search 

References

  1. 1.
    M.D. Singh, K.B. Kanchandani, Power Electronics, (Tata McGraw-Hill Education), ISBN: 978-0-07-058389-4Google Scholar
  2. 2.
    J.J. Grainger, W.D. Stevenson Jr., Power System Analysis, (Tata McGraw-Hill Education, 2003), ISBN: 0-07-058515-6Google Scholar
  3. 3.
    A. Maity, K. Bhattacharya, A.N. Sanyal, Cost optimal design of a 3-phase 400 Kv power inductor for compensating an EHV line. Int. J. Emerg. Technol. Adv. Eng. 2(9) (2012), ISSN: 2250–2459 (online)Google Scholar
  4. 4.
    H. Partab, Art and Science of Utilization of Electrical Energy (Dhanpat Rai and Co., New Delhi, 2010)Google Scholar
  5. 5.
    A.K. Shawney, A Course in Electrical Machine Design (Dhanpat Rai & Sons, New Delhi, 2003)Google Scholar
  6. 6.
    R. Basak, A. Das, A. Sensarma, A.N. Sanyal, Discrete design optimization of small open type dry transformers. Bulletin Teknik Elektrodan Informatika 1(1), 37–42 (2012). ISSN: 2089-319Google Scholar
  7. 7.
    A. Chakraborty, S. Halder, Power System Analysis, Operation and Control, (PHI Learning Pvt. Ltd.), ISBN: 978-81-203-4015-2Google Scholar
  8. 8.
    M.V. Deshpande, Electrical Power System Design, (Tata McGraw-Hill Education), ISBN-13: 978-0-07-451575-4; ISBN-10: 0-07-451575-6Google Scholar
  9. 9.
    H. Nagaoka, The inductance coefficients of solenoids. J. Coll Sci. 27(3), 31 (1909)Google Scholar
  10. 10.
    M.G. Say, Performance and Design of AC Machines, (CBS Publishers and Distributors, 2002), ISBN: 10:8123910274Google Scholar
  11. 11.
    M. Ramamoorty, Computer-Aided Design of Electrical Equipment, (Affiliated East-West Press, 1987), ISBN: 81-85095-57-4Google Scholar
  12. 12.
    K. Deb, Optimization for Engineering Design, (PHI Learning Pvt. Ltd., 2010), ISBN: 978-81-203-0943-2Google Scholar
  13. 13.
    S.S. Rao, Engineering Optimization- Theory and Practice, (New Age International), ISBN: 978-81-224-2723-3Google Scholar
  14. 14.
    NHPC Ltd. BSE Design Engineering, Construction, Execution, Testing and Commissioning of Transmission Lines. (2013)Google Scholar
  15. 15.
    A. Shanmugasundaram, G. Gangadharan, R. Palani, Electrical Machine Design Data Book, (Wiley Eastern Ltd.), ISBN: 0 85226 813 0Google Scholar

Copyright information

© The Institution of Engineers (India) 2018

Authors and Affiliations

  1. 1.Geological Survey of IndiaKolkataIndia
  2. 2.Jadavpur UniversityKolkataIndia
  3. 3.Academy of TechnologyHooghlyIndia

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