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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18693
Title: Two-Stage Protection for Multi-Channel Power Electronic Converters Fed Large Asynchronous Hydro-Generating Unit
Authors: Semwal R.R.
Joseph A.
Chelliah T.R.
Published in: Proceedings of 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Abstract: Multi-channeled voltage source inverter (VSI) provided in rotor circuit of doubly fed induction machine (DFIM) ensures control of real and reactive power of the machine alongwith speed variation. VSI is significantly impacted during grid disturbances since DFIM is very sensitive to the grid disturbances as stator/rotor circuit is directly connected to the grid. This paper presents two stage protection circuit for the multi-channeled VSI since it is useful for the continuous operation of the unit in case of marginal grid disturbances. Control system for the dc link chopper circuit protection and crowbar protection is developed based on the dc link voltage of the VSI. In addition, it provides the activation status of the protection circuits during grid disturbances which is economically helpful for the plant authorities. Two-stage protection circuit for a 250 MW DFIM with five channel back-to-back three level VSI is simulated in Matlab/Simulink. A 2.2 kW DFIM is tested in the laboratory to validate the simulation results. © 2018 IEEJ Industry Application Society.
Citation: Proceedings of 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018, (2018), 1358- 1363
URI: https://doi.org/10.23919/IPEC.2018.8507777
http://repository.iitr.ac.in/handle/123456789/18693
Issue Date: 2018
Publisher: Institute of Electrical and Electronics Engineers Inc.
Keywords: doubly fed induction machine
pumped storage power plant
two stage protection
voltage source inverter
ISBN: 9784886864055
Author Scopus IDs: 57195490439
57195495509
35755335100
Author Affiliations: Semwal, R.R., Hydropower Simulation Laboratory, Indian Institute of Technology, Roorkee, India
Joseph, A., Hydropower Simulation Laboratory, Indian Institute of Technology, Roorkee, India
Chelliah, T.R., Hydropower Simulation Laboratory, Indian Institute of Technology, Roorkee, India
Funding Details: ACKNOWLEDGEMENT Authors thank Central Power Research Institute, Government of India funding this research work, along with a research fellowship. Data supplied by THDC India Limited for this research is also gratefully acknowledged.
Appears in Collections:Conference Publications [WR]

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