원문정보
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초록
영어
Grid-connected solar micro-inverter is a highly nonlinear and time-varying system, so it is difficult to achieve good control effect using traditional PI controller. In this paper, small signal analysis model of micro-inverter is established, grid-connected current control strategy composed of fuzzy PI controller and grid voltage feed-forward is put forward, and the initial parameters of PI controller is optimized using the genetic algorithm. Simulation results show that the control strategy has the virtues of good robustness, small dynamic deviation, and could reduce the harmonic content of grid-connected current.
목차
Abstract
1. Introduction
2. Topology Structure of Micro-inverter
3. Model of Grid-connected Micro-inverter
4. Control Strategy of Grid-connected Current
4.1 Optimization the Initial Parameters of PI Controller
4.2 Fuzzy Reasoning
4.3 Grid Voltage Feed-forward and Current Zero Compensation
5. Simulation of micro-inverter system
6. Conclusion
Acknowledgements
References
1. Introduction
2. Topology Structure of Micro-inverter
3. Model of Grid-connected Micro-inverter
4. Control Strategy of Grid-connected Current
4.1 Optimization the Initial Parameters of PI Controller
4.2 Fuzzy Reasoning
4.3 Grid Voltage Feed-forward and Current Zero Compensation
5. Simulation of micro-inverter system
6. Conclusion
Acknowledgements
References
저자정보
참고문헌
자료제공 : 네이버학술정보