{'fraction_non_alphanumeric': 0.01287001287001287, 'fraction_numerical': 0.0, 'mean_word_length': 5.274193548387097, '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}}
A novel control scheme for wide speed range operation of direct torque controlled synchronous reluctance motor

This paper proposes a novel control scheme for wide speed range operation of synchronous reluctance motors. The proposed scheme consists of a combination of maximum torque per ampere control, maximum torque per flux control, flux-weakening control and torque limiting. These controls are based on a mathematical model in a rotating reference frame that is synchronized with the stator flux linkage. The proposed control scheme is suitable for direct torque control or flux-oriented control. The validity of the control scheme is verified by the experimental results. The proposed schemes of flux weakening and torque limiting are insensitive to parameter variation.