Study on the Power Control Method of a Stand-Alone Wind Energy System Based on DSEG

Abstract:

The Stand-Alone wind energy supply system equipped with a doubly Salient Electro-Magnetic Generator (DSEG) is presented in this paper. First, the analysis of the operating characteristics of wind turbine and DSEG is introduced. Based on the strategy of power signal feedback (PSF), the excitation current of DSEG is regulated, as a result, Electro-Magnetic torque of the DSEG is controlled and the maximum wind energy tracking is achieved. Battery is employed as an energy storage device and interfaced to the wind energy system through bidirectional DC/DC converter. The control strategies of the bidirectional DC/DC are proposed to balance the power differences between the generator and the power the load, so that voltage of the DC bus could be constant under varying wind speed and load. The simulation results show the effectiveness of the control methods.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 4096-4102
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.4096
• Online since: November 2011
• Authors: Jian Fei Sun, Bo Zhou, Hong Hao Guo, Guang Jie Zuo
• Keywords: DC Bus Voltage Control, Doubly-Salient Electro-Magnetic Generator, Maximum Wind Energy Tracking, Unbalanced Load Compensation

References

[1] Changhong, S., C. Xiangjun, et al., Application Research of Maximum Wind-energy Tracing Controller Based Adaptive Control Strategy in WECS[J], IEEE 5th International Power Electronics and Motion Control Conference, (2006).

DOI: 10.1109/ipemc.2006.4778055

[2] C. Wang, L. M. Wang, L. B. Shi, and Y. X. Ni, A Survey on Wind PowerTechnologies in Power Systems, " in proc. 2007 IEEE PESGM, 08, pp.1-6, Jun. (2007).

[3] Kazmi Syed Muhammad Raza, Hiroki Goto, Hai-Jiao Guo, and Osamu Ichinokura, Maximum power point tracking control and voltage regulation of a DC-tied wind energy conversion system based on a novel permanent magnet reluctance generator, " in proc. IEEE ICEMS, 07, Seoul, Korea, pp.993-998, Oct. 8~11, (2007).

DOI: 10.1109/icems12746.2007.4412284

[4] Chen Zhihui, Yan Yangguang, Chen Hong-mao , Realization of DSP Control of Voltage Regulator on Doubly-Salient Generator, Journal of Nanjing University of Aeronautics &Astronautics, Vol. 32, No. 3, pp.251-255, (2000).

[5] L. Wang, C. X. Qing, Z. Z. Ran, and Y. Y. Guang, A novel excitationcontrol scheme for exciting-magnetic doubly salient brushless DC generator, " in proc. IEEE ICEMS, 05, vol. 1, pp.675-678, Sept. (2005).

DOI: 10.1109/icems.2005.202617

[6] Barote L., Marinescu C., Georgescu M, VRB modeling forstorage in stand-alone wind energy systems, " Proc. of thePower Tech, 09 IEEE Conference, 28 June – 2 July (2009).

DOI: 10.1109/ptc.2009.5281922