无刷直流电机相电流和母线电流的关系及电路保护策略讨论  

Discussion on Relationship Between Phase Current and Bus Current of Brushless Direct Current Motor and Circuit Protection Strategy

作　　者：严孟凯 张飞 Yan Meng-kai;Zhang Fei(China National Offshore Oil Corporation Energy and Technology Services Company,Engineering Technology Branch,Tianjin 300452,China;China United Coalbed Methane Corp.,Ltd.,Jincheng Branch,Jincheng 048001,Shanxi Province,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300452 [2]中联煤层气有限责任公司晋城分公司,山西晋城048001

出　　处：《科学与信息化》2023年第6期135-137,共3页Technology and Information

摘　　要：关于无刷直流电机运行时相电流和母线电流之间的关系,很多使用者都不能清楚掌握,往往在设计系统时将电流限流保护措施施加在母线位置,这种不恰当的保护策略导致系统不能达到预期的保护期望。本文着重就典型的无刷直流电机相电流和母线电流之间的内在联系加以阐述,以期提供给各用户一个清晰的内在联系和逻辑,方便各使用者正确的实施保护措施,避免系统损伤,并在后续设计中能够以此为基础,完成更加精确的、成熟的系统设计。Regarding the relationship between phase current and bus current during the operation of brushless direct current motors,many users cannot clearly understand it,and often apply current limiting protection measures to the bus current position when designing the system,and this inappropriate protection strategy leads to that the system fails to achieve the expected protection expectations.This paper focuses on the intrinsic relationship between the phase current and bus current of typical brushless direct current motor,in order to provide each user with a clear internal connection and logic,facilitate the correct implementation of protection measures by each user,avoid system damage,and accordingly complete a more accurate and advanced system design in the subsequent design.

关 键 词：母线电 流相电流 保护措施 无刷直流电机 

分 类 号：TM7[电气工程—电力系统及自动化]