Research of Wind Power into the Grid Based on Large-Capacity Parallel Converter Modules

Abstract:

The converters connected to the power grid, including rectifier and inverter. The rectifier uses DC voltage outer loop control method and the input current inner loop control method, three-phase inverter output current uses SPWM modulation. With the capacity of the system increasing, the capacity of a single converter can no longer meet the requirements, for improving the system's power grid, reliability and efficiency, converters can be paralleled. Parallel operation generates loop current; one of the effective methods of suppressing the loop current is to connect limiting inductance in the inverter AC side. Through simulation, gets the suitable inductance value, and researches the dead zone time affecting on the loop current. When the dead zone times of two modules are not equal, the loop current increases.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 5899-5906
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.5899
• Online since: November 2011
• Authors: Fei Ye, Zhong Dong Yin, Chen Xin Dai
• Keywords: Converter Control, Converter Parallel, Dead Zone, Limiting Inductance, Loop Current Suppress

References

[1] Ahmed T, Nishida K, Nakaoka M. Advanced control of PWMconverter with variable-speed induction generator [J]. IEEE Transactions on Industry Applications, 2006, 42(4): 934-945.

DOI: 10.1109/tia.2006.876068

[2] Carrasco J M, Franquelo L G, Bialasiewicz J T, et al. Power electronic systems for the grid integration of renewable energy sources: a survey[J]. IEEE Transactions on Industrial Electronics, 2006, 53(4): 1002-1016.

DOI: 10.1109/tie.2006.878356

[3] Tapia A, Tapia G, Ostolaza J X, et al. Modeling and control on a wind turbine driven doubly fed induction generator[J]. IEEE Transactions on Energy Conversion, 2003, 18(2): 194-204.

DOI: 10.1109/tec.2003.811727

[4] Pan ChingTsai, Liao Yi-Hung. Modeling and coordinate control of circulating currents in parallel three-phase boost rectifiers[J]. IEEE Transactions on Industrial Electronics, 2007, 54(7): 825-838.

DOI: 10.1109/tie.2007.891776

[5] Zhihong Ye, Boroyevich D, Jae-Young Choi, et al. Control of circulating current in two parallel three-phase boost rectifiers[J]. IEEE Transactions on Power Electronics, 2002, 17(5): 609-615.

DOI: 10.1109/tpel.2002.802170

[6] Xing K, Lee F C, Boroyevich D, et al. Interleaved PWM with discontinuous space-vector modulation[J]. IEEE Transactions on Power Electronics, 1999, 14(5): 906-917.

DOI: 10.1109/63.788496

[7] M. Young, The Technical Writer's Handbook. Mill Valley, CA: University Science, (1989).

[8] Yang Yong, Ruan Yi, Shen Huanqing, Yang Ying. Inductance design of PWM converter AC side in wind power. Solar Energy, 2009, 3: 356.

[9] Chen Huirong, research of inverter dead time effect and the typical compensation method. Master thesis of Tianjin University. 2006, 1.