PUBLICATIONS
Paper
[Domestic Journals] Jung-Rok Lee, Seung Hyu Seo, and Kyo-Beum Lee, "Design of LCL-filter for Grid-Connected Three-Phase Inverters Using a Discontinuous PWM Method," The Transactions of the Korean Institute of Electrical Engineers, vol. 65, no. 3, pp. 419–427, Mar. 2016.
- 글쓴이 관리자
- 날짜 2019-06-26 15:59
- 조회 1,901
This paper proposes a design method of LCL-filter for a grid-connected three-phase inverter using a discontinuous PWM (DPWM)
method. When using a DPWM method, many harmonic voltages are generated in the inverter output compared to a continuous
PWM (CPWM) method. Therefor, an optimized grid-connected filter design is required for a DPWM method. The proposed design
method provides generalized formula to design accurate LCL-filter without trial and error procedures. An inverter side inductance is
designed by analyzing the current ripple injected to the grid. The optimized parameters of CLC-filter can be designed by analyzing
the total harmonic distortion (THD) and the ripple attenuation factor of the output current. The proposed LCL filter design method
is demonstrated by simulation and experimental results.
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