Research on LCL-type three-phase photovoltaic grid-connected inverter based on passive damping
2021 ◽
Vol 2137
(1)
◽
pp. 012017
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Abstract The traditional LCL filter has resonance phenomenon in the working process of three-phase photovoltaic grid-connected inverter system. Based on the analysis of the frequency characteristics of LCL filter equivalent circuit before and after the introduction of passive damping resistor, it is concluded that the resonance of the system can be suppressed after the introduction of passive damping resistor. In the meantime, the current double closed-loop control strategy used in the system is introduced in detail. Finally, the simulation model is built by Matlab/Simulink simulation platform to verify the feasibility of the research method of LCL-type three-phase photovoltaic grid-connected inverter based on passive damping.
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2018 ◽
Vol 54
(3A)
◽
pp. 39
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2019 ◽
Vol 8
(4)
◽
pp. 1123-1127
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2013 ◽
Vol 321-324
◽
pp. 917-920
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