YING, C.; HUI, L. .; PAERHATI; XIU-FEN, X. .; YONG-GUANG, G. . Comprehensive Evaluation Method of Energy-saving Effect for Frequency Conversion System Based on Total Harmonic Components. Distributed Generation & Alternative Energy Journal, [S. l.], v. 36, n. 3, p. 239–268, 2021. DOI: 10.13052/dgaej2156-3306.3633. Disponível em: https://journals.riverpublishers.com/index.php/DGAEJ/article/view/13573. Acesso em: 14 may. 2026.