{'fraction_non_alphanumeric': 0.02282608695652174, 'fraction_numerical': 0.0, 'mean_word_length': 4.86624203821656, '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}}
Power Management System for PV Fed DC Drive with Discrete Controller

This paper deals with the Power Management System (PMS) and closed loop speed control for Photo Voltaic (PV) fed DC Drive with Discrete Sliding Mode Controller (DSMC). The PV fed drives are highly unstable due to the fluctuation in voltage received from the panel and hence have poor efficiency. Perturb & Observe (P&O) Maximum Power Point Tracking (MPPT) method is used to get maximum power from the PV array. The efficiency and stability of the drive can be improved by incorporating a well-organized PMS with battery back-up and robust closed loop speed control by discrete controller. The design and simulation of PMS for different operating conditions is done and the simulation results are plotted. The stability and robustness of the DC drive is proved by providing variations in irradiance, reference DC bus voltage and reference motor speed.