CONTROL SYSTEM OF GRID-TIED MULTILEVEL VOLTAGE INVERTER WITH LIMITATION TRANSFORMERS MAGNETIZING CURRENT
Journal Title: Електромеханічні і енергозберігаючі системи - Year 2017, Vol 3, Issue 39
Abstract
Purpose. Improved control law for gridtied multilevel voltage inverter of solar module that allows you to hold the solar module operation in terms of selection of the maximum power. Proposed an improved model of longitudinal component of inverter current, which consider actual current, a given value of power grid voltage and voltage of the solar modules. Proposed model of transversal component of inverter current, which consider a given value of grid active power and given value of transversal component of inverter current, which is necessary for work of inverter at the point of area of maximum power selection. Have been develop a computer model to check the adequacy of the model. Methodology. Was have applied the mathematical simulation of multilevel voltage inverter at work with the solar module and power grid. Results: Improved the regulator models of longitudinal and transversal components of inverter current. Developed a mathematical model of automatic voltage regulators (longitudinal component of the inverter current Id) and power (transversal component of the inverter current Iq), which operate according to the law PID control. Originality. For the first time, was create mathematic model for regulators of d and q components of inverter current at work with the solar module and power grid with limitation transformers magnetizing current. Practical value. Checked the adequacy of the mathematical model by the computer simulation.
Authors and Affiliations
Vadym Bombyk
Keywords
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