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- Title
Research on a New Control Scheme of Photovoltaic Grid Power Generation System.
- Authors
Dong-Hui Li; Yi-Lin Wang; Da-jun Zhou
- Abstract
A new type of photovoltaic grid power generation system control scheme to solve the problems of the conventional photovoltaic grid power generation systems is presented. To aim at the oscillation and misjudgment of traditional perturbation observation method, an improved perturbation observation method comparing to the nextmoment power is proposed, combining with BOOST step-up circuit to realize the maximum power tracking. To counter the harmonic pollution problem in photovoltaic grid power generation system, the deadbeat control scheme in fundamental wave synchronous frequency rotating coordinate system of power grid is presented. A parameter optimization scheme based on positive feedback of active frequency shift island detection to solve the problems like the nondetection zone due to the import of disturbance in traditional island detection method is proposed. Finally, the results in simulation environment by MATLAB/Simulink simulation and experiment environment verify the validity and superiority of the proposed scheme.
- Subjects
PHOTOVOLTAIC power generation; ELECTRIC power distribution grids; PROBLEM solving; QUANTUM perturbations; PARAMETERS (Statistics); COMPUTER simulation
- Publication
Journal of Applied Mathematics, 2014, p1
- ISSN
1110-757X
- Publication type
Article
- DOI
10.1155/2014/512058