| With the continuous development of science and technology, therapid growth of the national economy, power electronic equipment needsmore and more of a wide range of needs. In industrial production in thedue to large nonlinear load of using, makes power supply system existslarge harmonic continued against with grid and equipment of security,this background came into being of has source power filter was broadconcern and in today are better of development, due to has source powerfilter on power system in the harmonic has better of inhibition andcompensation role, so on APF main circuit of design and control methodof research on has very important of theory and engineering practicesignificance.This for has source power filter of structure principle and detectionand control algorithm area do has some column describes, detection mainbased on instantaneous reactive power theory ofi p iqlaw on grid forharmonic detection, control part main using triangle wave control methodfor control, DC side part added has pre-charging part makes simulationmeet actual of requirements while used has fuzzy theory on PI parameterfor has optimization has reached control effect of optimal upgrade gridparameter.Introduced the system, at the same time also by MATLAB insimulation model building and fuzzy optimization model of PI andsimulation system performance curve parameter verifies the correctnessof the theory of fuzzy optimization of PI and the feasibility.Control system this article select the more appropriate controlcharacteristics TMS320F28335as a control chip, combined with thedesign characteristics of the APF in select a DC bus capacitors and powerdevices and other equipment.Finally, the relevant parts of the PC design, it focuses on the use ofhardware and software design and realization control monitor screen inreal time. |
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