A New Control Method to Mitigate Power Fluctuations for Grid Integrated PV/Wind Hybrid Power System Using Ultracapacitors
-
N. S. Jayalakshmi
and
D. N. Gaonkar
Abstract
The output power obtained from solar-wind hybrid system fluctuates with changes in weather conditions. These power fluctuations cause adverse effects on the voltage, frequency and transient stability of the utility grid. In this paper, a control method is presented for power smoothing of grid integrated PV/wind hybrid system using ultracapacitors in a DC coupled structure. The power fluctuations of hybrid system are mitigated and smoothed power is supplied to the utility grid. In this work both photovoltaic (PV) panels and the wind generator are controlled to operate at their maximum power point. The grid side inverter control strategy presented in this paper maintains DC link voltage constant while injecting power to the grid at unity power factor considering different operating conditions. Actual solar irradiation and wind speed data are used in this study to evaluate the performance of the developed system using MATLAB/Simulink software. The simulation results show that output power fluctuations of solar-wind hybrid system can be significantly mitigated using the ultracapacitor based storage system.
Acknowledgements
This work is supported in part by the Ministry of power, Government of India through Central Power Research Institute Bangalore, Karnataka under RSOP project scheme (CPRI letter no.3/5, R&D/RSOP/2011 Dated: 27/04/2011).
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©2016 by De Gruyter
Articles in the same Issue
- Frontmatter
- Research Articles
- Control of Grid Connected Photovoltaic System Using Three-Level T-Type Inverter
- A New Method for Setting Calculation Sequence of Directional Relay Protection in Multi-Loop Networks
- Performance Analysis of SISFCL with the Variation of Circuit Parameters using Jiles Atherton Hysteresis Model
- Generation Expansion Planning with High Penetration of Wind Power
- Grid Integration of Single Stage Solar PV System using Three-level Voltage Source Converter
- Extraction and Analysis of Inter-area Oscillation Using Improved Multi-signal Matrix Pencil Algorithm Based on Data Reduction in Power System
- A New Control Method to Mitigate Power Fluctuations for Grid Integrated PV/Wind Hybrid Power System Using Ultracapacitors
- Comparative Analysis of Instruments Measuring Time Varying Harmonics
- Application of Energy Function as a Measure of Error in the Numerical Solution for Online Transient Stability Assessment
Articles in the same Issue
- Frontmatter
- Research Articles
- Control of Grid Connected Photovoltaic System Using Three-Level T-Type Inverter
- A New Method for Setting Calculation Sequence of Directional Relay Protection in Multi-Loop Networks
- Performance Analysis of SISFCL with the Variation of Circuit Parameters using Jiles Atherton Hysteresis Model
- Generation Expansion Planning with High Penetration of Wind Power
- Grid Integration of Single Stage Solar PV System using Three-level Voltage Source Converter
- Extraction and Analysis of Inter-area Oscillation Using Improved Multi-signal Matrix Pencil Algorithm Based on Data Reduction in Power System
- A New Control Method to Mitigate Power Fluctuations for Grid Integrated PV/Wind Hybrid Power System Using Ultracapacitors
- Comparative Analysis of Instruments Measuring Time Varying Harmonics
- Application of Energy Function as a Measure of Error in the Numerical Solution for Online Transient Stability Assessment
