Title :
Impact of integration of solar and wind power on small signal stability using wavelet transform
Author :
Sharma, K.G. ; Bhargava, Anshuman ; Gajrani, Kiran ; Bansal, Rajeev
Author_Institution :
Dept. of Electr. Eng., Gov. Eng. Coll., Ajmer, India
Abstract :
This paper investigates the consequences of integration of solar PV and wind power generation on the small signal stability of power system. Standard benchmark IEEE 14 bus system is selected for study. Impact has been analyzed by substituting the conventional synchronous generator with Solar Photo-Voltaic Generation (SPVG) and Doubly Fed Induction Generator (DFIG) wind turbines separately as well as jointly. The effect of varying penetration level of solar and wind power is also investigated. Eigenvalue analysis is used to compute the frequency and damping factor of oscillatory components that arise due to small disturbances. The oscillatory modes are also identified using discrete wavelet transform, a spectral analysis technique. Power spectral density and time frequency curves are used to extract hidden frequency information from the signal. The different cases have been simulated in MATLAB based PSAT, wavelet, and time frequency signal analysis toolboxes.
Keywords :
asynchronous generators; discrete wavelet transforms; eigenvalues and eigenfunctions; photovoltaic power systems; power system stability; solar power stations; spectral analysis; synchronous generators; time-frequency analysis; wind power plants; wind turbines; DFIG wind turbines; IEEE 14 bus system; MATLAB based PSAT; SPVG; damping factor; discrete wavelet transform; doubly fed induction generator; eigenvalue analysis; hidden frequency information; oscillatory modes; power spectral density; power system stability; small disturbances; small signal stability; solar PV power generation; solar photo-voltaic generation; spectral analysis technique; synchronous generator; time frequency curves; time frequency signal analysis toolboxes; wind power generation; Damping; Generators; Power system stability; Renewable energy sources; Stability analysis; Time-frequency analysis; Wavelet transforms; DFIG; Small signal stability; discrete wavelet transform; solar photo-voltaic generator; time frequency analysis;
Conference_Titel :
Clean Energy and Technology (CEAT), 2013 IEEE Conference on
Conference_Location :
Lankgkawi
Print_ISBN :
978-1-4799-3237-5
DOI :
10.1109/CEAT.2013.6775643
