{'fraction_non_alphanumeric': 0.02373887240356083, 'fraction_numerical': 0.0, 'mean_word_length': 5.683168316831683, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Design and analysis of improved ADRC controller for multiple grid-connected photovoltaic inverters

When multiple inverters are connected to the grid, due to the uncertainty of the internal model and the presence of external disturbances, the grid-connected current waveform will deviate from the expectation. In this paper, Active Disturbance Rejection Control (ADRC) strategy is presented to suppress the internal and external perturbations, moreover, the first-order ADRC parameters are designed. Finally, MATLAB/Simulink is utilized to verify the control strategy of ADRC. The simulation results demonstrate that the ADRC method can suppress the disturbance effectively.