CAJ | 학술논문

随着电力负荷的迅速增长和用户对电能质量要求的不断提高，传统配电系统面临新的挑战。直流配电技术在提高电能质量方面的巨大潜力引起学者们的关注。由于缺乏成熟、经济的直流断路器和实际运行经验，保护技术成为制约直流配电系统发展的瓶颈。鉴于此，概述了直流配电系统保护技术研究的发展现状，从直流配电系统的概念出发，系统阐述了保护技术研究的困境，明确了保护分区与故障类型，并指出了直流配电系统故障与保护的特殊性。然后综述了直流系统故障隔离及限流装置的发展现状，总结了直流配电系统的保护策略。最后对直流配电系统保护的技术研究做出了展望。
수착전력부하적신속증장화용호대전능질량요구적불단제고，전통배전계통면림신적도전。직류배전기술재제고전능질량방면적거대잠력인기학자문적관주。유우결핍성숙、경제적직류단로기화실제운행경험，보호기술성위제약직류배전계통발전적병경。감우차，개술료직류배전계통보호기술연구적발전현상，종직류배전계통적개념출발，계통천술료보호기술연구적곤경，명학료보호분구여고장류형，병지출료직류배전계통고장여보호적특수성。연후종술료직류계통고장격리급한류장치적발전현상，총결료직류배전계통적보호책략。최후대직류배전계통보호적기술연구주출료전망。
With rapid growth of power load and power consumers’ ever-growing demands on power quality, traditional distribution system has been faced to new challenges, thus special attentions are paid to the huge potential of DC distribution technology in improving power quality. Being short of mature and economic DC circuit breakers and their practical operational experiences, protection technique becomes the bottleneck that restricts the development of DC distribution system. Firstly, present developing situation of protection technology for DC distribution system is summarized, and starting from the concept of DC distribution system the dilemma in the research on protection technology for DC distribution system is presented; the protection zone and fault types are clarified, and the particularity of protection for DC distribution system faults is pointed out; a review on current development of fault isolation devices and fault current limiters for DC distribution system are given and the protection strategy of DC distribution system is summarized; finally, the technical research on protection for DC distribution system is prospected.