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Received: 2008-06-12

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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.10 P.1532~1540

http://doi.org/10.1631/jzus.A0820440


Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions


Author(s):  Jia-bing HU, Wei ZHANG, Hong-sheng WANG, Yi-kang HE, Lie XU

Affiliation(s):  School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   emec_zju@zju.edu.cn, weizhang@zju.edu.cn, homeson_wang@zju.edu.cn, ykhe@zju.edu.cn, lie.xu@eee.strat

Key Words:  Grid-connected voltage source converter (GC-VSC), Proportional integral plus multi-frequency resonant (PI+MFR), Imbalance, Harmonics distortion


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Jia-bing HU, Wei ZHANG, Hong-sheng WANG, Yi-kang HE, Lie XU. Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions[J]. Journal of Zhejiang University Science A, 2009, 10(10): 1532~1540.

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Abstract: 
This paper proposes a current control scheme for a grid-connected pulse width modulator (PWM) voltage source converter (GC-VSC) under imbalanced and distorted supply voltage conditions. The control scheme is implemented in the positive synchronously rotating reference frame and composed of a single proportional integral (PI) regulator and multi-frequency resonant controllers tuned at the frequencies of 2ω and 6ω, respectively. The experimental results, with the target of eliminating the active power oscillations and current harmonics on a prototype GC-VSC system, validate the feasibility of the proposed current control scheme during supply voltage imbalance and distortion.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Hu, J.B., He, Y.K., 2007. Multi-frequency proportional-resonant (MFPR) current controller for PWM VSC under unbalanced supply conditions. J. Zhejiang Univ. Sci. A, 8(10):1527-1531.

[2] Hu, J.B., He, Y.K., 2008. Modelling and control of grid-connected voltage-sourced converters under generalized unbalanced operation conditions. IEEE Trans. Energy Conv., 23(3):903-913.

[3] Hu, J.B., He, Y.K., Nian, H., 2007. Enhanced control of DFIG-used back-to-back PWM VSC under unbalanced grid voltage conditions. J. Zhejiang Univ. Sci. A, 8(8):1330-1339.

[4] Kazmierkowski, M.P., Krishnan, R., Blaabjerg, F., 2002. Control in Power Electronics: Selected Problems. Academic Press, San Diego, California, USA, p.89-160.

[5] Rioual, P., Pouliquen, H., Louis, J.P., 1996. Regulation of a PWM rectifier in the unbalanced network state using a generalized model. IEEE Trans. Power Electron., 11(3):495-502.

[6] Song, H., Nam, K., 1999. Dual current control scheme for PWM converter under unbalanced input voltage conditions. IEEE Trans. Ind. Eelectron., 46(5):953-959.

[7] Suh, Y., Lipo, T.A., 2006. Control scheme in hybrid synchronous-stationary frame for PWM AC/DC converter under generalized unbalanced operating conditions. IEEE Trans. Ind. Appl., 42(3):825-835.

[8] Verdelho, P., Marques, G.D., 1998. DC voltage control and stability analysis of PWM-voltage-type reversible rectifier. IEEE Trans. Ind. Eelectron., 45(2):263-273.

[9] Wu, X.H., Panda, S.K., Xu, J.X., 2008. Analysis of instantaneous power flow for three-phase PWM boost rectifier under unbalanced supply voltage conditions. IEEE Trans. Power Electron., 23(4):1679-1691.

[10] Yin, B., Oruganti, R., Panda, S.K., Bhat, A.K.S., 2008. An output-power-control strategy for a three-phase PWM rectifier under unbalanced supply conditions. IEEE Trans. Ind. Eelectron., 55(5):2140-2151.

[11] Yuan, X., Merk, W., Stemmler, H., Allmeling, J., 2002. Stationary-frame generalized integrators for current control of active power filters with zero steady-state error for current harmonics of concern current under unbalanced and distorted operating conditions. IEEE Trans. Ind. Appl., 38(2):523-532.

[12] Zmood, D.N., Holmes, D.G., 2003. Stationary frame current regulation of PWM inverters with zero steay-state error. IEEE Trans. Power Electron., 18(3):814-822.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

zhaizy<jzus_zzy@zju.edu.cn>

2010-01-29 10:40:35

Reviewer's comment: this paper presents some interesting work on the control of PWM voltage source converter, particularly under unbalanced and distorted supply voltage conditions. The first author Jia-bing Hu is an active young scholar in this field. Welcome readers and peers' attention and comments. -- editor

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