Open Access Open Access  Restricted Access Subscription or Fee Access

Operational Performance of Synchronous Generator Hybrid-Excited by PMDC and PV Generators


(*) Corresponding author


Authors' affiliations


DOI: https://doi.org/10.15866/iree.v9i4.2472

Abstract


In this paper, detailed operational performance of synchronous generator connected to infinite bus hybrid excited by Permanent-Magnet DC (PMDC) and Photovoltaic (PV) generators is presented. The PV generator is interfaced to the PMDC generator via DC-DC buck-boost switch mode converter which is used to control the voltage injected at all solar irradiance levels via adjusting its duty ratio. The PV generator is designed such that to meet the demands of the synchronous generator excitation at full solar irradiance. The PMDC generator is conventionally powered by fuel engine. Power control unit is used to automatically adjust the PMDC generator driving torque in order to compensate the power need once the output power from the PV generator decreases as a result of reduction in the solar irradiance. To have an idea about the stability of the system operating point, eigenvalues of the linearized system at different running conditions are discussed. The robustness of the system is checked by observing its response based on the complete nonlinear dynamical model after successive step changes in the solar irradiance levels and successive step changes in the set value of the desired excitation voltage particularly used for controlling both the terminal voltage and the output reactive power of the synchronous generator. It is concluded that the proposed hybrid excitation system is technically possible, reliable, can effectively control the output reactive power of the synchronous generator, reduces the total fuel consumption and robust enough to withstand step changes in the system input parameters.
Copyright © 2014 Praise Worthy Prize - All rights reserved.

Keywords


Synchronous Generator Operational Performance, Photovoltaic Generator Characteristics, Constant Voltage Control, Power Control Unit.

Full Text:

PDF


References


P. Kundur, Power System Stability and Control, (New-York, McGraw Hill, Inc. 1993).

M. S. Widyan, Large- and Small-Signal Stability Performance of a Power System Incorporated with PV Generator, International Journal of Power and Energy Systems, Vol. 33, No. 4, 2013, pp.1-9, 2013.

Widyan, M.S., Marji, G.S., Al Tarabsheh, A.I., Dynamic and steady-state operational performance of induction and synchronous reluctance motors powered by PV generator with MPPT, (2012) International Review of Automatic Control (IREACO), 5 (6), pp. 757-768.

Vijayarajan, S., Kamaraj, N., Real and reactive power control in a three phase unbalanced load supported by solar PV plant at consumer end, (2013) International Review of Electrical Engineering (IREE), 8 (4), pp. 1333-1340.

Hidouri, N., A fuzzy controlled scheme for an isolated hybrid MPPT-photovoltaic diesel-PMSG system, (2014) International Review of Electrical Engineering (IREE), 9 (2), pp. 290-299.

S. B. Skretas, D. P. Papadopoulos, Efficient Design and Simulation of an Expandable Hybrid (Wind-Photovoltaic) Power System with MPPT and Inverter Input Voltage Regulation Features in Compliance with Electric Grid Requirements, Electric Power System Research, Vol. 79, 2009, pp.1271-1285.
http://dx.doi.org/10.1016/j.epsr.2009.03.010

Y. Anagreh, Steady State Performance of Series DC Motor Powered by Wind Driven Self-Excited Induction Generator, Rev. Energ.: Power Engineeing, 2001, pp. 9-15.

N. A. Ahmed, M. Miyatake, A. K. Al-Othman, Power Fluctuations Suppression of Stand-Alone Hybrid Generation Combining Solar Photovoltaic/Wind Turbine and Fuel Cell Systems, Energy Conversion and Management, Vol. 49, 2008, pp.2711-2719.
http://dx.doi.org/10.1016/j.enconman.2008.04.005

W. Zhou, C. Lou, Z. Li, H. Yang, Current Status on Optimum Sizing of Stand-Alone Hybrid Solar-Wind Power generation Systems, Applied Energy, Vol. 87, 2010, pp.380-389.
http://dx.doi.org/10.1016/j.apenergy.2009.08.012

X. Zhang, K. T. Chau, An Automotive Thermoelectric-Photovoltaic Hybrid Energy System Using Maximum Power Point Tracking, Energy Conversion and Management, Vol. 52, 2011, pp.641-647.

E. S. Sreeraj, K. Chatterjee, S. Bandyopadhyay, Design of Isolated Renewable Hybrid Power Systems, Solar Energy, Vol. 84, 2010, pp.1124-1136.
http://dx.doi.org/10.1016/j.solener.2010.03.017

M. S. Widyan, A. M. Harb, O. M. Al-Oquili, Transient and Steady-State Performance Analysis of Hybrid Powered DC Series Motor via DC Shunt and PV Generators with Maximum Power Point Tracking, Electrical Engineering, Vol. 96, 2013, pp.99-107.
http://dx.doi.org/10.1007/s00202-013-0282-x

M. H. Nehrir, C. Wang, K. Strunz, H. Aki, R. Ramakumar, J. Bing, Z. Miao, Z. Salameh, A Review of Hybrid Renewable/Alternative Energy Systems for Electric Power generation: Configurations, Control and Applications, IEEE Trans. on Sustainable Energy, Vol. 2, No. 4, 2011, pp.392-403.
http://dx.doi.org/10.1109/TSTE.2011.2157540

M. S. Widyan, R. E. Hanitsch, Operating Point Stability Analysis of SMIB Power System Equipped with High PV Penetration, International Journal of Electrical Power and Energy Systems, Vol. 55, 2014, pp. 522-530.
http://dx.doi.org/10.1016/j.ijepes.2013.09.031

N. Mohan, T. Undeland, W. Robbins, Power Electronics: Converters, Applications and Design, (John Wiley & Sons, Inc., 2003).

Porselvi, T., Muthu, R., Modeling and control of the PMSG for the wind energy conversion system with the CHB inverter with the new selective harmonic elimination technique, (2013) International Review on Modelling and Simulations (IREMOS), 6 (3), pp. 767-773.

Sivasankar, G., Suresh Kumar, V., Improving low voltage ride through of wind generators using STATCOM under symmetric and asymmetric fault conditions, (2013) International Review on Modelling and Simulations (IREMOS), 6 (4), pp. 1212-1218.

Gopal Sharma, K., Bhargava, A., Gajrani, K., Stability analysis of DFIG based wind turbines connected to electric grid, (2013) International Review on Modelling and Simulations (IREMOS), 6 (3), pp. 879-887.

J. C. Das, Subsynchronous Resonance-Series Compensated HV Lines and Converter Cascades, (2014) International Journal on Engineering Applications (IREA), 2 (1), pp. 1-9.
http://dx.doi.org/10.11648/j.ijmea.20140201.11

Kurian, S., Sindhu, T.K., Cheriyan, E.P., Review on developments in wind energy generation and its integration to utility grid, (2013) International Review on Modelling and Simulations (IREMOS), 6 (5), pp. 1523-1532.


Refbacks

  • There are currently no refbacks.



Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize