Comparsion of Harmonic Propagation and Whack-a-mole Phenomena Compensation on Radial Distribution Feeder Using Parallel Active Power Filter with Constant and Controlled Gains
Subject Areas : electrical and computer engineering
H. R.
Ezzati
1
(Tarbiat Modares University)
A.
Yazdian Varjani
2
(Tarbiat Modares University)
Keywords: Characteristic impedance, harmonic propagation, active filter gain, harmonic oscillation phenomenon, Characteristic impedance, harmonic propagation, active filter gainharmonic oscillation phenomenonwhack-a-mole,
Abstract :
In order to damping harmonic propagation effect, the active power filters (APF) are installed on distribution systems. This installation also may cause harmonic oscillation effect named Whack-a-mole. In this paper using simulation results, the two mentioned effects are decreased efficiently for a ten-bus power radial distribution feeder for any nonlinear load connections (harmonic current or voltage source) by using constant gain Kv=1/Zc The characteristic impedance, Zc, is nondeterministic and variable, so the APF's gain should be controlled actively. In this paper the parallel active filter gain is designed such that by producing proper compensating current, the harmonic distortion on APF bus is controlled and the harmonic propagation and oscillation effects are prevented by keeping the harmonic distortion in an allowable interval. By adjusting APF gain, the effective compensation current will decrease and so the power loss and cost, the benefit of applying adjustable gain APF.
[1] K. Wada, H. Fujita, and H. Akagi, "Considerations of a shunt active filter based on voltage detection installation on a long distribution feeder," IEEE Trans. on Industry Applications, vol. 38, no. 4, pp. 1123-1130, Jul./Aug. 2002.
[2] P. Jintakosonwit, H. Akagi, H. Fujita, and S. Ogasawara, "Implementation and performance of automatic gain adjustment in a shunt active filter for harmonic damping throughout a power distribution system," IEEE Trans. Power Electronics, vol. 17, no. 3, pp. 438-447, May 2002.
[3] H. Akagi, H. Fujita, and K. Wada, "A shunt active filter based on voltage detection for harmonic termination of a radial power distribution line," IEEE Trans. Ind. Applicat., vol. 35, no. 3, pp. 638-645, May/Jun. 1999.
[4] P. Jintakosonwit, H. Fujita, and H. Akagi, "Control and performance of a fully-digital-controlled shunt active filter for installation on a power distribution system," IEEE Trans. on Power Electronics, vol. 17, no. 1, pp. 132-140, Jan. 2002.
[5] P. Jintakosonwit, H. Fujita, and H. Akagi, "Performance of automatic gain adjustment in shunt active filters for harmonic damping throught power distribution systems," in Proc. IEEE/PELS PESC Conf., pp. 1389-1395, 2001.
[6] P. Jintakosonwit, H. Akagi, H. Fujita, and S. Ogasawara, "Implementation and performance of cooperative control of shunt active filters for harmonic damping throughout a power distribution system," IEEE Trans. on Industry Applications, vol. 39, no. 2, pp. 556-564, Mar./Apr. 2003.