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http://dx.doi.org/10.6113/JPE.2018.18.2.456

Development and Testing of a 10 kV 1.5 kA Mobile DC De-Icer based on Modular Multilevel Converter with STATCOM Function  

Hu, Pengfei (School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China)
Liang, Yiqiao (Zhejiang Guirong Xieping Technology Co., Ltd.)
Du, Yi (Power Economic Research Institute of State Grid Fujian Electric Power Company)
Bi, Renming (Zhejiang Guirong Xieping Technology Co., Ltd.)
Rao, Chonglin (Zhejiang Guirong Xieping Technology Co., Ltd.)
Han, Yang (School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China)
Publication Information
Journal of Power Electronics / v.18, no.2, 2018 , pp. 456-466 More about this Journal
Abstract
This paper introduces the development of a de-icer based on a full-bridge modular multilevel converter (FMMC). The FMMC can generate a wide range of DC voltages owing to its modularity, scalability, and redundancy, which makes it suitable for ice-melting applications. First, operating principles and voltage ranges are analyzed when FMMC is applied as a mobile de-icer. Second, two new startup strategies, constant modulation index and constant power startup strategies, are proposed. Third, the main control strategies of the de-icer are proposed. Fourth, a novel rated-current zero-power test scheme is proposed to simplify test conditions. Finally, a 10 kV 1.5 kA mobile MMC de-icer is designed and built, and experiments are carried out to validate the proposed startup, control strategies, and rated-current zero-power test scheme.
Keywords
Control strategy; DC de-icer; Experimental test; Modular multilevel converter; Rated-current zero-power test; Startup strategy;
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