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Generation Of Control Signals For An AC - DC Converters For A Hybrid Charging System
Subject area: Science,Engineering and Technology · Area of research: Electrical Engineering
Abstract
A hybrid generator with a PV energy conversion system is proposed with super capacitors and lead acid batteries in a DC- coupled structure. The objective of this system is to present works focuses on the strategy which makes it possible to ensure a high battery state of charge and overcharge security by designing a dedicated local control system. A dynamic model and a control design of the power system studied are proposed in this paper. Simulation of control characteristic was carried out using matlab and experimental results illustrate the performance obtained. It also shows the application of rectifier circuit in the hybrid system limited to purely resistive load. This paper proposes a single power conversion AC - DC converter with high power factor and high efficiency. The proposed converter is derived by integrating a half wave thyristor rectifier with resistive load and a series resonant active DC ? DC converter or charge controller for the PV installation.
Keywords
AC (Alternating Current), DC (Direct Current), Hybrid power system, PV (Photo voltaic), converters.
References
[1] P.G. Barbosa, L.G.B. Rolim, E.H. Wantabe, R. Hanitsch, “control strategy for grid- connected DC-AC converters with load power factor correction, Generation”, Proc. IEE Transmission and Distribution, Vol. 145, Issue 5, pp. 487 – 491, Sep 1998.
[2] H. Yu, J Pan, A. Xiang, “A multi – function grid-connected PV system with reactive power compensation for grid”, solar Energy, vol. 79, iss. 1, pp 101-106, July 2005.
[3] G. Delille, B. Francois, A review of some technical and economic features of energy storage technologies for distribution system integration, Ecological engineering and environment protection, pp. 40-48, vol. 1, ISSN 1311-8668, 2009.
[4] O. Gabriel, C. Saudemont, B. Robyns, M. Radulescu, “control and performance evaluation of a flywheel energy-storage system associated to a variable-speed wind generator”, IEEE Trans. on Ind. Electron, Vol. 53, n^° 4, pp. 1074-1085, 2006
[5] “A stand-alone photovoltaic system”, renewable-energy –sources.com. Archived from the original on 2011-07-13. Retrieved 2011-07-21.
[6] “A stand-alone photovoltaic system, case study: A Residence in Gaza” (pdf). trisanita.org. Archived from the original (pdf) on 2012-04-26. Retrieved 2011-07-21. Matlab Programme %program to illustrate control characteristic of single phase half wave %controlled rectifier %Vdc output voltage in V %Vdm = Vm/pie %Vm is peak input supply voltage in V %theta is firing angle of thyristor in degree %Vdc = ((Vm/2pie)*(1+cos theta)) Vm = 220; theta = [0 30 60 90 120 150 180]; Vdc = [1 0.9330 0.750 0.5 0.25 0.0699 0]; Plot (theta,Vdc) grid on xlabel ('theta, [degrees]') ylabel ('output voltage, Vdc (Vdm)[volts]') title ('graphical response of output voltage against firing angle') S/N α VO(rms) (V) 1 0° 110.00 2 30 ° 100.56 3 60 ° 89.98 4 90 ° 77.78 5 120 ° 63.28 6 150 ° 44.58 7 180 ° 0
How to cite this paper
@article{1700790,
author = {Agu LS, Ezechukwu OA, Ezennaya SO},
title = {Generation Of Control Signals For An AC - DC Converters For A Hybrid Charging System},
journal = {Iconic Research And Engineering Journals},
year = {2018},
volume = {2},
number = {5},
pages = {13-18},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1700790.pdf},
abstract = {A hybrid generator with a PV energy conversion system is proposed with super capacitors and lead acid batteries in a DC- coupled structure. The objective of this system is to present works focuses on the strategy which makes it possible to ensure a high battery state of charge and overcharge security by designing a dedicated local control system. A dynamic model and a control design of the power system studied are proposed in this paper. Simulation of control characteristic was carried out using matlab and experimental results illustrate the performance obtained. It also shows the application of rectifier circuit in the hybrid system limited to purely resistive load. This paper proposes a single power conversion AC - DC converter with high power factor and high efficiency. The proposed converter is derived by integrating a half wave thyristor rectifier with resistive load and a series resonant active DC ? DC converter or charge controller for the PV installation.},
keywords = {AC (Alternating Current), DC (Direct Current), Hybrid power system, PV (Photo voltaic), converters.},
month = {November},
}