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 88
- Downloads 0
POWERFUL GENERATORS OF HIGH-VOLTAGE PULSES WITH NANOSECOND FRONTS
Purpose. Purpose of the article is to show the possibility of joint efficient operation of semiconductor switches and spark arresters in high-powerful high-voltage generators for obtaining nanosecond and shorter pulse fr...
A REVERSE MODE OF THREE-PHASE ASYNCHRONOUS MOTORS WITH HEXAPHASE WINDINGS
A reverse operation feasibility in three-phase asynchronous motors with the stator hexaphase windings is proved. In the reverse mode, the hexaphase windings are shown to keep all their declared advantages.
COMPUTING EXPERIMENTS FOR CALCULATION OF ELECTROSTATIC AXISYMMETRIC FIELD IN PIECEWISE-HOMOGENEOUS INSULATION WITH SPHERICAL INCLUSIONS
Calculations of electrostatic axisymmetric field are made with application of solution to Fredholm integral equation of the first and the second kinds in a piecewise homogeneous isotropic linear polymeric insulation. On...
THEORETICAL AND EXPERIMENTAL RESULTS OF RESEARCH INTO EXPLANATION OF DE BROGLIE HALF-WAVE EXISTENCE IN THE MICROSTRUCTURE OF AN ACTIVE METALLIC CONDUCTOR
The paper presents theoretical and experimental results of research on longitudinal wave distribution of drifting free electrons in a round metallic conductor with high-density pulse axial current. The data directly indi...
AN ANTHOLOGY OF THE DISTINGUISHED ACHIEVEMENTS IN SCIENCE AND TECHNIQUE. PART 36: NOBEL PRIZE LAUREATES IN PHYSICS FOR 1995-1999
Purpose. Implementation of brief analytical review of the distinguished scientific achievements of the world scientists-physicists, awarded the Nobel Prize in physics for period 1995-1999. Methodology. Scientific methods...