Analysis on Protection of DC Zone Distribution System of Offshore Platform Drilling Device
MA Yun-xu-zi1, GAO Di-ju1, WANG Xiao-yu2
1Key Laboratory of Marine Technology & Control Engineering, Ministry of Communications/Shanghai Maritime University, Shanghai 201306, China; 2Shanghai Zhenhua Heavy Industries Co., Ltd., Shanghai 200125, China
Abstract：With the promotion of power electronics, direct current (DC) zone distribution system is to be applied in drilling device of offshore platform, and relay protection is one of the key technologies for the distribution system. The structure features and protection difficulties of the DC zone distribution system is analyzed. With the application of power electronic building block (PEBB) technology, a DC zone distribution system and its relay protection system are set up by replacing the traditional converter and circuit breaker with turnoff converter and capacitor DC circuit breaker. On this basis, fault detection and location, fault current interrupt and fault device isolation are discussed and analyzed. Finally, the method of setting the threshold for protection and the collaborative protection for different protection areas are investigated.
马韵徐子, 高迪驹, 王孝玉. 海洋平台钻井装置直流区域配电系统的保护[J]. 海洋工程装备与技术, 2018, 5(1): 53-57.
MA Yun-xu-zi, GAO Di-ju, WANG Xiao-yu. Analysis on Protection of DC Zone Distribution System of Offshore Platform Drilling Device. Ocean Engineering Equipment and Technology, 2018, 5(1): 53-57.
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