Bio-Network Inspired Cooperative Intelligent Controllers

In a grid-connected power generation system, the grid-connected current of the inverter is sensitive to nonlinear factors such as periodic disturbance of grid voltage, which results in grid-connected current waveform distortion. By establishing a single-phase photovoltaic grid-connected inverter control system model, designing an inverse current fractional-order PI (PIλ or FO-PI) controller and the dynamic and steady-state performance, antidisturbance and grid connection inversion characteristics of the system are simulated and compared under the action of the integer-order PI controller and fractional-order PI controller. The quality of the inverter grid-connected current is analyzed by using the fast Fourier transform (FFT). The simulation results show that the fractional-order control system can reduce the total harmonic distortion (THD) of the grid-connected current and dynamic performance and antidisturbance ability of the improving system while satisfying the steady-state performance indexes.

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Current PIλ Control of the Single-Phase Grid Inverter

Yang

Liu

et al. 2021

Mathematical Problems in Engineering

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Bio-Network Inspired Cooperative Intelligent Controllers

Cited by 1 publication

References 45 publications

Current PIλ Control of the Single-Phase Grid Inverter

Current PIλ Control of the Single-Phase Grid Inverter

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