Reduction in iron losses in Indirect Vector-Controlled IM Drive using FLC

Details Reduction in iron losses in Indirect Vector-Controlled IM Drive using FLC Reduction in iron losses in Indirect Vector-Controlled IM Drive using FLC

2010-05-24

arxiv.org/abs/1005.4265v1

Computer Science

Other Computer Science

IEEE Publication format, International Journal of Computer Science and Information Security, IJCSIS, Vol. 8 No. 1, April 2010,

Scientific paper

This paper describes the use of fuzzy logic controller for efficiency optimization control of a drive while keeping good dynamic response. At steady-state light-load condition, the fuzzy controller adaptively adjusts the excitation current with respect to the torque current to give the minimum total copper and iron loss. The measured input power such that, for a given load torque and speed, the drive settles down to the minimum input power, i.e., operates at maximum efficiency. The low-frequency pulsating torque due to decrementation of flux is compensated in a feed forward manner. If the load torque or speed commands changes, the efficiency search algorithm is abandoned and the rated flux is established to get the best dynamic response. The drive system with the proposed efficiency optimization controller has been simulated with lossy models of converter and machine, and its performance has been thoroughly investigated.

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