The Paton Welding Journal, 2009, №09



2009 №09 (02)

2009 №09 (04)

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TPWJ, 2009, #9, 17-22 pages  
FEATURES OF CURRENT INVERTER DESIGN


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 9, 2009 (September)
Pages                      17-22
 
 
Authors
G.N. MOSKOVICH
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Features of current inverter operation are studied. Functional dependence of the duration of half-period (in radians) of the current inverter oscillation process on circuit Q-factor was derived. Performed analytical calculations of inverter current are presented in the graphic form in different systems of coordinates. A new design procedure was developed and new frequency-time characteristics of current inverters were calculated.
 
 
Keywords: current inverter, heat treatment, complex frequency, resonance frequency, angular frequency, Q-factor, oscillatory circuit, characteristic resistance, half-period duration, working frequency, power balance
 
 
Received:                21.01.09
Published:               28.09.09
 
 
References
1. Berkovich, E.I., Ivensky, G.V., Ioffe, Yu.S. et al. (1983) Higher frequency thyristor converters for electrotechnological units. Leningrad: Energoatomizdat.
2. Balian, R.Kh., Sivers, M.A. (1982) Thyristor generators and inverters. Leningrad: Energoizdat.
3. Matkhanov, P.N. (1981) Principles of analysis of electric circuits. Line circuits: Manual for higher education institution. Moscow: Vysshaya Shkola.
4. Moskovich, G.N. (2004) Development of new powerful inverter for heat treatment. In: Abstr. of Sci.-Pract. Seminar on Increase in Reliability of Welded Joints during Installation and Repair of Technological Equipment in Power Engineering (Kiev, 12-15 Oct. 2004). Kiev: PWI.

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