Zaichenko O. Optimal control in the semiconductor current regulator - rotor type electromagnet separator system

The object of research: parameters transformation processes in the semiconductor current regulator - rotor type electromagnet separator system. The purpose of research: increasing energy efficiency and performance of the semiconductor current regulator - electromagnetic separator rotor type system by developing new methods of regulating the relationship between electrical, magnetic and technological parameters, including with the use of fuzzy logic. Methods of research: methods of the theory of electrical circuits and electromagnetic fields; method of piecewise linear approximation of nonlinear systems; method of harmonic analysis and Fourier series; theory of automatic control; methods of fuzzy logic; mathematical modeling in MATLAB and specialized program OMEGA; real-time programming (MATLAB, FuzzyTECH, AVRStudio). Theoretical and practical results and innovations: the basic regular dependencies of electric, magnetic and technological parameters of the system where defined; first the mathematical model of the semiconductor current regulator - rotor type electromagnet separator system was developed; the current control method of the magnetic induction in the work area was developed; the optimal control method of the current in the magnetizing windings of the separator and productivity with the using of fuzzy logic was developed; the method of fuzzy proportional-integral current control in the magnetizing windings was developed; the parameters expedient ranges and functional dependencies where defined for the universal current harmonic filter. A subject degree of introduction: results found practical application in development of the electromagnetic separation high-efficiency systems in particular current regulators and automatic control systems for electromagnetic separators (STC "Magnis" Luhansk, Institute of Electrodynamics NAS of Ukraine, STF "TEMS" Kyiv). Effectiveness of implantation: increasing the quality of the output concentrate and separation performance, decreasing the electric energy consumption, improving the electromagnetic compatibility. Sphere of use: the enterprises that producing and developing the rotor type separators, automatic control systems, specialized semiconductor converters and mineral processing research institutes.