TY - GEN
T1 - Voltage control of a wind power plant using the adaptive Q-V characteristic of DFIGs
AU - Kim, Jinho
AU - Park, Geon
AU - Kang, Yong Cheol
AU - Lee, Byongjun
AU - Muljadi, Edward
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/9/26
Y1 - 2014/9/26
N2 - For the stable operation of a grid, the voltages of all buses in the grid should be maintained within an acceptable range. For a grid with high wind penetration, wind power plants (WPPs) are required to have the capability to maintain the voltage at the point of common coupling (PCC). Wind generators in a WPP produce the different active power due to the wake effects and consequently contain different reactive power availability. This paper proposes a voltage control scheme of a doubly-fed induction generator (DFIG)-based WPP using the adaptive reactive power-voltage (Q-V) characteristic of DFIGs. The WPP controller calculates a voltage error signal using a PI controller and sends it to each DFIG. From the voltage error signal, the DFIG injects the reactive power based on its adaptive Q-V characteristic, which depends on the available reactive power. The proposed scheme adjusts the Q-V characteristic depending on the operating condition of a DFIG. The proposed scheme enables the WPP to recover the PCC voltage to the nominal value within a short time after a disturbance by utilizing the reactive power capability of a WPP. The performance of the scheme was investigated for a 100 MW WPP consisting of 20 units of a 5 MW DFIG for a grid fault condition. The results show the proposed scheme successfully recovers the PCC voltage within a short time after a disturbance.
AB - For the stable operation of a grid, the voltages of all buses in the grid should be maintained within an acceptable range. For a grid with high wind penetration, wind power plants (WPPs) are required to have the capability to maintain the voltage at the point of common coupling (PCC). Wind generators in a WPP produce the different active power due to the wake effects and consequently contain different reactive power availability. This paper proposes a voltage control scheme of a doubly-fed induction generator (DFIG)-based WPP using the adaptive reactive power-voltage (Q-V) characteristic of DFIGs. The WPP controller calculates a voltage error signal using a PI controller and sends it to each DFIG. From the voltage error signal, the DFIG injects the reactive power based on its adaptive Q-V characteristic, which depends on the available reactive power. The proposed scheme adjusts the Q-V characteristic depending on the operating condition of a DFIG. The proposed scheme enables the WPP to recover the PCC voltage to the nominal value within a short time after a disturbance by utilizing the reactive power capability of a WPP. The performance of the scheme was investigated for a 100 MW WPP consisting of 20 units of a 5 MW DFIG for a grid fault condition. The results show the proposed scheme successfully recovers the PCC voltage within a short time after a disturbance.
UR - http://www.scopus.com/inward/record.url?scp=84928627789&partnerID=8YFLogxK
U2 - 10.1109/PEMWA.2014.6912230
DO - 10.1109/PEMWA.2014.6912230
M3 - Conference contribution
AN - SCOPUS:84928627789
T3 - PEMWA 2014 - 2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications
BT - PEMWA 2014 - 2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications, PEMWA 2014
Y2 - 24 July 2014 through 26 July 2014
ER -