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Open AccessArticle

Linear Active Disturbance Rejection Control for DC Bus Voltage of Permanent Magnet Synchronous Generator Based on Total Disturbance Differential

School of Electrical and Electronic Engineering, Tianjin University of Technology, Tianjin 300384, China
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Energies 2019, 12(20), 3906; https://doi.org/10.3390/en12203906
Received: 15 September 2019 / Revised: 3 October 2019 / Accepted: 10 October 2019 / Published: 15 October 2019
(This article belongs to the Special Issue Control Schemes for Wind Electricity Systems)
The wind power grid-connected inverter system has nonlinear, strong coupling, and is susceptible to grid voltage fluctuations and nonlinear load effects. To achieve satisfactory control results, the voltage outer loop is controlled by an improved linear active disturbance rejection control (LADRC). LADRC has strong adaptability, robustness and operability. It can automatically detect and compensate for internal and external disturbances, and correct complex controlled objects to integrator series. The total perturbation differential signal is introduced in the traditional linear extended state observer (LESO), which improves the dynamic perturbation observation ability of LESO. The frequency response characteristics analysis shows that the new LADRC has better anti-interference performance. The effectiveness of the improved controller under multiple operating conditions is verified by simulation. View Full-Text
Keywords: grid-connected inverter; linear active disturbance rejection control; total disturbance differential; disturbance rejection performance; frequency domain analysis grid-connected inverter; linear active disturbance rejection control; total disturbance differential; disturbance rejection performance; frequency domain analysis
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MDPI and ACS Style

Zhou, X.; Liu, M.; Ma, Y.; Yang, B.; Zhao, F. Linear Active Disturbance Rejection Control for DC Bus Voltage of Permanent Magnet Synchronous Generator Based on Total Disturbance Differential. Energies 2019, 12, 3906.

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