Abstract
In this paper a current control strategy is proposed for grid-following inverters that are connected to the grid through LCL filters. A lead compensation is utilized in series with the proportional gain of the current controller so that high bandwidth is achieved. Furthermore, capacitor current feedback active damping is used to mitigate the effect of the LCL filter resonance frequency. In addition to the improvements mentioned before, capacitor voltage decoupling is also used to enhance the disturbance rejection capability of the inverter. The proposed strategy is validated through theoretical analysis and experimental results obtained in a testbench.
Original language | English |
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Title of host publication | Proceedings of 2024 IEEE Energy Conversion Conference and Expo |
Number of pages | 7 |
Publisher | IEEE |
Publication status | Accepted/In press - 2025 |
Event | 2024 IEEE Energy Conversion Conference and Expo - Phoenix, United States Duration: 20 Oct 2024 → 24 Oct 2024 |
Conference
Conference | 2024 IEEE Energy Conversion Conference and Expo |
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Country/Territory | United States |
City | Phoenix |
Period | 20/10/2024 → 24/10/2024 |
Keywords
- Grid-following inverter
- LCL filter
- Current controller
- Active damping