MODELING AND CONTROL OF HYBRID PV-WIND ENERGY GENERATION SYSTEM FOR EFFICIENCY IMPROVEMENT
| Main Author: | Salama Abu-Zaid Abo-Alela |
|---|---|
| Format: | Article |
| Terbitan: |
, 2018
|
| Online Access: |
https://zenodo.org/record/1189389 |
Daftar Isi:
- Renewable energy sources have attracted wide attention due to their advantages of being abundant in nature and nearly non-polluting. The most feasible and reliable Grid connected renewable energy systems are the hybrid wind-solar sources. This paper proposes a high performance power generation of hybrid solar photovoltaic (PV) with a large capacity doubly fed induction generator (DFIG) based wind energy system. The proposed scheme uses both the grid side converter (GSC) and rotor-side converter (RSC) of DFIG to inject PV power to the grid. This proposed scheme provides an elegant and economic integration of PV source and DFIG-based wind energy source. A Maximum Power Point Tracking (MPPT) extracted from the wind based rotor speed control is proposed in conjunction with pitch control to avoid overloading in case of high wind velocity over the rated value. The integrated GSC and RSC control is designed to implement the dc-link voltage control, active and reactive power, and grid voltage support control functions. The PV solar is connected directly to the dc-link. A nonlinear control is applied to extract Maximum Power from the PV under variable operating conditions. The proposed scheme does not hamper MPPT of PV and wind sources except during very rarely occurring environmental glitches, which the PV power control algorithm is suitably geared to handle using an artificial neural network (ANN). The developed model is validated through a comprehensive set of simulation studies in the Matlab/Simulink environments. A series of results are obtained in order to analysis the system performance