Research on Grid-Connected Inverter Based on Current Track Control in Wind Generation System

Author:

Lin Cheng Wu1,Jiang Qi Guang1,Ma Li1

Affiliation:

1. Shenyang University of Technology

Abstract

In wind generation system, the control of the grid connected inverter is most important in achieving the transformation and transmission of the power. The system is controlled by the feedback of the instantaneous current, and the synchronous signal of the grid voltage is used as the current track command of the inverter directly. The system uses the closed-loop control of the feedback grid current to get the unit power factor transmission. The control system model of grid connected inverter based on switch function is set up, and the simulation and experiment results show that the proposed control strategy can achieve a better quality of the current fed back to the grid and improve the stability and dynamical performance of the grid connected inverter.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference5 articles.

1. Seung-Ho Song and Shin-il Kang: Implementation and Control of Grid Connected AC-DC-AC Power Converter for Variable Speed Wind Energy Conversion System. Applied Power Electronics Conference and Exposition, vol. 1 (2003), pp.154-158.

2. L.J. Diao and Z.G. Liu: Transactions of China Electrotechnical Society, vol. 20 (2005), pp.75-78.

3. J.B. Zhang and Y.L. Kang: Electrotechnical Journal, vol. 11 (2004), pp.58-60.

4. Q. Zhang, Z. Xie, C.W. Zhang and X. Zhang: Research on Grid-connected Inverter Based on Current Control of Bridge in the Wind Generation System, volume 19 of Progress in Journal of System Simulation (2007).

5. G.C. Chen, in: PWM variable frequency speed regulation and soft switching power converter technology, edited by China Machine Press, Beijing (2001), in press.

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