一种共直流母线组合变频货油泵驱动方案设计研究

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中图分类号：U665.12 文献标志码：A

Abstract： Addressing the characteristics of large asphalt carriers， such as strong grid independence and a high proportion of frequency conversion loads，this paper designs a combined frequency conversion drive scheme based on AFE （Active Front End） and acommon DC bus.Key technical issues including AFE-LCL filter resonance suppression，DC busbar short-circuit protection，and coordinated driveof cargo oil pumps areresolved. Compared with traditional independent frequency converter schemes，the proposed approach offers advantages in cost，space，harmoniccontrol，and reliability.Validated through practical shipboardapplication，the systemmeets the requirements of the shipowner and classification society， achieving a failure rate of 0.23% over 12 months of continuous operation.

Key words： AFE; common DC bus； cargo oil pump; harmonic suppression; short-circuit protection； asphaltcarrier

1 引言

1.1行业背景与技术需求

近年来，国际海事组织（IMO）对船舶能效（EEDI）及电源质量的要求持续升级，节能减排与电网稳定性成为船舶电气设计的核心目标。（剩余4806字）