Improving the reliability of electric drives of exhausters of the oxygen-converter process

Григорьев, М. А.; Sychev, D. A.; Zhuravlev, A. M.; Khayatov, Evgeny S.; Savosteenko, N. V.

doi:10.3103/s106837121512010x

Cited by 47 publications

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“…The energy efficiency of electric drives of mills for the cold pilgering mill are proposed to solve the reduced RMS current in the armature chain that is placed in the existing drive. Thus, it is possible to soften the mechanical characteristics of the closed loop system of the electric drive by preliminary field weakening of the motor because it increase the rated no-load speed before rolling [11].…”

Section: Statement Of Energy Saving Problemmentioning

confidence: 99%

Energy efficiency improvement of electric drive of cold pilgering mill

Sychev

Savosteenko

Gryzlov

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Different ways to improve the energy efficiency of electric drives of cold pilgering mill are considered. Mathematical modeling methods represent studies according to which it is possible to evaluate quantitatively the energy savings. For example, cold pilgering mill 450 shows the mean square of the armature current of the main drive motor related to critical frequency of the speed loop. The possibility of energy saving by previous field weakening of the motor before the operating cycle of rolling is considered. The optimal energy saving points of supply and termination of the pulse are determined by the field weakening. The correlation of the parameters of the dynamic units and the change of the electric drive work schedule provides the greatest loss reduction in the main drive of the cold pilgering mill stand based on the conditions. Activities aimed at improving energy efficiency of electric drives of mills of this group are reviewed, which reduces the electric energy consumption for the cycle rolling by 20-25 %.

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Section: Statement Of Energy Saving Problemmentioning

confidence: 99%