Abstract
Energy shortages and environmental pollution have enabled wind power generation to develop steadily. However, during the operation of the wind power system, the dynamic performance of the DC bus voltage is often affected by disturbances from the turbine side and the grid side. In order to deal with this problem, an improve linear active disturbance rejection controller with adaptive strategy (ILADRC-FA) for grid-connected control is proposed in this paper. In this strategy, it is proposed to redefine the observation deviation of the control observer to improve the tracking accuracy of each state variable by the extended state observer (ESO), so that the controlled object can be better compensated into the integrator series type. In addition, a fuzzy adaptive strategy is introduced to optimize the dynamic response of the entire system. Then, A power hardware-in-the-loop (PHIL) experimental platform, which integrates the RT-LAB simulator and physical controller is developed in this paper to emulate the wind power system based on a permanent magnet synchronous generator. Finally, the control performance of the ILADRC-FA strategy was tested on the PHIL experimental platform to verify its correctness, effectiveness and reliability.
Highlights
In recent years, renewable energy power generation technology has gradually attracted attention with energy shortage and environmental problems
Wind power system based on a permanent magnet synchronous generator (WPSPMSG) is being widely used in the field of new energy power generation [3]
In this paper, an ILADRC-FA control method for wind power systems is proposed to improve the bus voltage of the wind power system stability aiming at the problems of multivariable, strong coupling, variable parameters, nonlinearity, and complex cross-decoupling links in wind power systems
Summary
Renewable energy power generation technology has gradually attracted attention with energy shortage and environmental problems. B. Zhang et al.: Adaptive Linear Active Disturbance Rejection Control information on the generating side. Zhang et al.: Adaptive Linear Active Disturbance Rejection Control information on the generating side This method ensures the controllability of the grid-connected inverter with the grid voltage surge. An improve linear active disturbance rejection controller with adaptive strategy (ILADRC-FA) is proposed, which is applied to the WPS-PMSG control system to improve the stability of the DC bus under different conditions. The fuzzy adaptive strategy is introduced into the linear control law, and the fuzzy rule table is analyzed and adjusted according to the parameter adjustment experience, so that the controller can adaptively adjust the controller coefficients during operation It further limits the bus voltage fluctuations during the operation of the VOLUME 9, 2021.
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