Robust Controller With Least Mean Square Adaptive Filter for Voltage Source Inverters: Passivity-Based Design
Voltage source inverters (VSIs) are essential for many applications. However, it is challenging to design a controller that enables a VSI to generate a sinusoidal load voltage with no steady-state error regardless of loads. Moreover, the controller has to suppress the harmonic distortion caused by a...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/11052276/ |
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| Summary: | Voltage source inverters (VSIs) are essential for many applications. However, it is challenging to design a controller that enables a VSI to generate a sinusoidal load voltage with no steady-state error regardless of loads. Moreover, the controller has to suppress the harmonic distortion caused by a nonlinear load, such as a diode rectifier, while stabilizing the VSI. In this paper, we proposes a novel dual-loop controller for VSIs that comprises a passivity-based robust controller in the inner loop and a least mean square adaptive filter (LMS-AF) in the outer loop. The proposed controller can guarantee the robust stability for both linear and nonlinear loads, while achieving zero steady-state, fast-tracking, and robustness of the sensor noise. Regarding the harmonics caused by the diode rectifier load as cyclic, we suppress the harmonics caused by this load by applying the LMS-AF to the VSI controller. We demonstrate the effectiveness of the proposed controller through comparisons with conventional control approaches via simulations and experiments. |
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| ISSN: | 2169-3536 |