Achieving unity power factor at floating grid conditions in a cement plant in India-Case Study

J. Hasan Mydin, S. Umashankar, Praveen Sharma, Rajnish Roshan, H. S. Ranganatha Chakravarthy, Vigna K. Ramachandaramurthy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Most cement plants in India and around the world face a unique problem in regards with power factor. In industries where their local generation with their Captive Power Plant (CPP) and Waste Heat Recovery System (WHRS) is equal to or greater than the plant's total utilization, the load import from the Grid is brought down close to zero. This is done to reduce the power cost because the Grid power is comparatively expensive. Though the Grid power is not required, the connection to the Grid is mandatory for the system in floating mode to ensure the stability of the system, to avoid black-outs in the event of CPP failures/trips and to tackle unplanned/sudden variations in the load. Such a setup makes it extremely complex to maintain power factor at the Grid incomer. For more than a decade, it was assumed that no solution exists to this problem where CPPs are connected and power drawn from the Grid is close zero. In India, a state like Chhattisgarh, where Grid billing is in kVAh and on TOD 1 1TOD-Time of Day billing system. It refers to the practice of setting different price for a of unit energy at different times of the day. The general classification is On-Peak, Off-Peak and Normal hours. basis, power factor plays a major role in Grid cost optimization. This paper contains a discussion on the problem, the solution and a case study of achieving unity power factor at floating grid conditions in a cement plant in India.

Original languageEnglish
Title of host publicationIEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2018
PublisherIEEE Computer Society
Pages782-787
Number of pages6
ISBN (Electronic)9781538656860
DOIs
Publication statusPublished - 06 Dec 2018
Event10th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2018 - Kota Kinabalu, Malaysia
Duration: 07 Oct 201810 Oct 2018

Publication series

NameAsia-Pacific Power and Energy Engineering Conference, APPEEC
Volume2018-October
ISSN (Print)2157-4839
ISSN (Electronic)2157-4847

Other

Other10th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2018
CountryMalaysia
CityKota Kinabalu
Period07/10/1810/10/18

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology

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    Hasan Mydin, J., Umashankar, S., Sharma, P., Roshan, R., Ranganatha Chakravarthy, H. S., & Ramachandaramurthy, V. K. (2018). Achieving unity power factor at floating grid conditions in a cement plant in India-Case Study. In IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2018 (pp. 782-787). [8566469] (Asia-Pacific Power and Energy Engineering Conference, APPEEC; Vol. 2018-October). IEEE Computer Society. https://doi.org/10.1109/APPEEC.2018.8566469