CONTROL SYSTEM FOR MULTILEVEL INVERTOR OF SOLAR POWER STATION
Journal Title: Електротехніка і Електромеханіка - Year 2015, Vol 0, Issue 5
Abstract
Purpose. The development of control law for network multilevel invertor of solar power station and design device for control law realization. Methodology. At synthesis of control law theory of automatic control, power network engineering and circuit technique are considered. The control law for distributive control over the direct-axis and quadrature-axis currents of invertor after abc-dq transform of three phase current’s momentary value is used. Results. The improved model of regulator of direct-axis invertor’s current is developed and provides the voltage optimization of invertor’s operating both from solar module and from network by means of calculation the reactive power consumption from network, voltage on network and voltage on solar module. The improved model of regulator of quadrature-axis invertor’s current is developed and provides the power and frequency optimization of invertor’s operating by means of calculation ratio of active power consumption and power from solar module. Originality. The offered control law and device, which realize it, is working out on secondary loop from power network smart grid with active and reactive power consumption monitoring. That provides the optimal operation of solar station both from solar module and from power network. Practical value. The proposed control law and structure of the network multilevel invertor for solar power station provide the operate mode of solar module in maximum power point and increasing the solar module’s productivity.
Authors and Affiliations
S. M. Levitskiy
Keywords
Related Articles
- EP ID EP298259
- DOI 10.20998/2074-272X.2015.5.07
- Views 85
- Downloads 0
A TECHNIQUE OF MEASURING OF RESISTANCE OF A GROUNDING DEVICE
Introduction. Measurement of resistance of the grounding device (GD) by means of a three-electrode system. This requires not only the right choice of installation locations of measuring electrodes, but also the determina...
COMPARISON OF ADJUSTABLE HIGH-PHASE ORDER INDUCTION MOTORS’ MERITS
Purpose. Development of mathematical models of adjustable electrical drives with high-phase order induction motors for their merits analysis at static and dynamical modes. Methodology. At the mathematical modeling main k...
THE STRUCTURAL AND PARAMETRICAL ORGANIZATION OF ELEMENTS OF A POWER SUPPLY SYSTEM IN THE CONDITIONS OF NETWORK CENTRISM
Purpose. Development of indicators of the structural and parametrical organization of effective active and adaptive system of service of power supply systems in the conditions of ideology of Smart Grid. Methodology. In t...
DETERMINATION OF ANALYTICAL CALCULATION ERROR OF MAGNETIC FIELD OF HIGH-VOLTAGE CABLE LINES WITH TWO-POINT BONDED CABLE SHIELDS CAUSED BY NON-UNIFORM CURRENT DISTRIBUTION IN THE SHIELDS
This paper deals with the determination of analytical calculation error of magnetic field of high-voltage cable lines in two-point bonded cable shields caused by non-uniformity of the current distribution in the shields....
INVESTIGATION OF HIGH-CURRENT INTERRUPTING CONTACTS WORKING SURFACES MECHANICAL INTERACTION NATURE
Introduction. The nature of the interaction of high-working surfaces of the electrical contact uniquely affects their performance. By the failure of the contacts in the main drive processes resulting from complex destruc...