On the Control and Stability of Grid Connected Photovoltaic Sources

A methodology is proposed for the effective integration of photovoltaic (PV) devices into the electric utility distribution network operations. The dispersed PV generator is viewed as an active device used to improve system stability by appropriately modulating the power conditioning unit's out...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 1987-12, Vol.EC-2 (4), p.556-562
Main Authors: Kalaitzakis, K. C., Vachtsevanos, G. J.
Format: Article
Language:English
Subjects:
Applied sciences
Distributed power generation
Energy
Exact sciences and technology
Inverters
Natural energy
Photovoltaic systems
Power conditioning
Power generation
Power industry
Shape control
Signal generators
Solar energy
Solar power generation
Solar thermal conversion
Stability
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Summary:A methodology is proposed for the effective integration of photovoltaic (PV) devices into the electric utility distribution network operations. The dispersed PV generator is viewed as an active device used to improve system stability by appropriately modulating the power conditioning unit's output power. Disturbances on the utility system can be damped out by injecting this power into the grid in such a way so that the net effect is a cancellation of undesirable oscillations. The approach is implemented by monitoring the oscillating power and generating control signals which shape accordingly the interface unit's output power. Successful implementation of the scheme relies heavily on the speed and flexibility with which the electronic inverter moves power from the primary source/storage facility to the utility lines. Simulation studies, using the proposed control approach, indicate that application of these policies may result in reduced load following requirements for conventional power generating units, increase the value and acceptability of new energy technologies, and improve power quality and stability of the interconnected system.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.1987.4765892