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2013, № 9 (158)



Bezgin A.S., Grekov E.L. EXPANSION OF LOAD CAPABILITY OF THYRISTOR DIRECT FREQUENCY CONVERTER IN THE UPPER RANGE REGULATION OF OUTPUT FREQUENCY ABOVE 25 HZThis article discusses the reasons for the instability of the system of "direct thyristor frequency converter (TNPCH) — a two-phase asynchronous motor" with the vector control system at work in the upper range of adjusting the output frequency above 25 Hz. — A simulation model that takes into account the peculiarities of the system has been developed. A method of forming job linkage, taking into account the work of the vector system and the presence of higher harmonics has been provided. An algorithm of position correction of rotating axis control system based on the timing of reversible switching bridges has been developed.Key words: Thyristor direct frequency converter, vector control system, the control range.

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References:

1 Grekov E.L. Development and research of the electric main mechanisms of excavators system FPGA -AD on the basis of equivalent shestipuls — schemes . Diss . for the degree of Ph.D. — Samara, Samara State Technical University , — 2003 .

2 Bezgin A.S. The implementation of the block diagram of asynchronous electric motor for rotating the orientation of the coordinate system by the vector potokostsep -tion of the rotor for a software implementation . / / Proceedings of the All-Russian Scientific Conference : "Energy : Status, Problems and Prospects ." — Orenburg : RSO , 2012 — p.283 -293 .

3 Bezgin A.S. Digital control system thyristor -governmental direct frequency converter for electric hoisting mechanisms / V.G. Bessonov , Grekov E.L., Vladimir Sorokin / / Information technologies in electrical engineering and power : I74 materials VII All . scientific and engineering . Conf. Cheboksary , 2010 — pp. 126-131


About this article

Authors: Bezgin A.S., Grekov E.L.

Year: 2013


Editor-in-chief
Sergey Aleksandrovich
MIROSHNIKOV

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