{'fraction_non_alphanumeric': 0.023543990086741014, 'fraction_numerical': 0.007434944237918215, 'mean_word_length': 5.622950819672131, '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': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Development of a 1.5 MVA Universal Converter Module for Traction Drive and Utility Applications

This paper presents a 1.5 MVA universal converter module developed for large vehicle traction drives and utility applications. The converter module employs 3.3 kV high voltage intelligent power module (HVIPM), dry self-healing segmented dc filter capacitor, and laminated bus bar for completely snubberless and clamping capacitor-less operation. The module is very compact, light weight, and highly flexible. Several different systems can be configured according to various application needs using the converter module. This paper further describes its structure/thermal design, specification, and performance in detail. Experimental results are presented to demonstrate the module and verify the specification