Resonance Characteristics Analysis of Grid-connected Inverter Systems based on Sensitivity Theory

Jian Wu; Wanqin Han; Tao Chen; Jiaqi Zhao; Binbin Li; Dianguo Xu

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자료유형: 학술저널

저자정보: Jian Wu (Harbin Institute of Technology) Wanqin Han (Harbin Institute of Technology) Tao Chen (Harbin Institute of Technology) Jiaqi Zhao (Harbin Institute of Technology) Binbin Li (Harbin Institute of Technology) Dianguo Xu (Harbin Institute of Technology)

저널정보: 전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.3

발행연도: 2018.5

수록면: 746 - 756 (11page)

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Harmonic resonance exists in grid-connected inverter systems. In order to determine the network components that contribute to harmonic resonance and the composition of the resonant circuit, sensitivity theory is applied to the resonance characteristic analysis. Based on the modal analysis, the theory of sensitivity is applied to derive a formula for determining the sensitivities of each network component parameter under a resonance circumstance that reflects the participation of the network component. The solving formula is derived for both parallel harmonic resonance and series harmonic resonance. This formula is adopted to a 4-node grid-connected test system. The analysis results reveal that for a certain frequency, the participation of parallel resonance and series resonance are not the same. Finally, experimental results demonstrate that the solving formula for sensitivity is feasible for grid-connected systems.

#Grid-connected system #Resonance sensitivity #Sensitivity analysis #Series harmonic resonance

참고문헌 (12)

참고문헌 신청

D. Xu, F. Wang, Y. Ruan, and H. Mao, “Output impedance modeling of grid-connected inverters considering nonlinear effects,” in 2012 IEEE 13th Workshop on Control and Modeling for Power Electronics (COMPEL), pp. 1-7, 2012. M. Lu, F. Blaabjerg, and X. Wang, “Interaction admittance based modeling of multi-paralleled grid-connected inverter with LCL-filter,” in 2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC), pp. 1-7, 2016. F. Wang, X. Feng, and C. Wu, “Research on grid harmonic interaction of multiple flyback micro-inverters,” Proceedings of the CSEE, Vol. 36, No.3, pp. 709-716, May 2016. X. Xiong, W. Zheng, K. Chen, J. Shen, “Identification approach in modeling a photovoltaic grid-tie inverter,” International Rev. Electrical Eng., Vol. 7, No. 3, pp. 4575- 4584, 2012. B. C. Smith, J. Arrillaga, A. R. Wood, and N. R. Watson, “A review of iterative harmonic analysis for AC-DC power systems,” IEEE Trans. Power Del., Vol. 13, No. 1, pp. 180- 185, Jan. 1998.

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