CAJ | 학술논문

分布式电源接入改变了传统配电网的潮流和故障特性，对配电网现有的保护造成了巨大影响。为适应分布式电源的接入，必须深入研究配电网的保护方法。分析分布式电源接入后配电网的故障电流特性，并分类阐述分布式电源对配电网不同原理的保护的影响。在综述国内外的含分布式电源配电网保护配置方法的基础上，分析和探讨现有的保护方法，并指出配电网保护配置的发展方向。为分布式电源接入配电网的保护配置的进一步研究提供思路，以最终实现未来配电网的安全、可靠运行。
분포식전원접입개변료전통배전망적조류화고장특성，대배전망현유적보호조성료거대영향。위괄응분포식전원적접입，필수심입연구배전망적보호방법。분석분포식전원접입후배전망적고장전류특성，병분류천술분포식전원대배전망불동원리적보호적영향。재종술국내외적함분포식전원배전망보호배치방법적기출상，분석화탐토현유적보호방법，병지출배전망보호배치적발전방향。위분포식전원접입배전망적보호배치적진일보연구제공사로，이최종실현미래배전망적안전、가고운행。
Increasing connections of large-scale of distributed generations (DG) to the distribution systems change the power flow and the fault current characteristic of the traditional distribution systems and will greatly influence the current protection schemes for distribution systems. In-depth studies of various kinds of protection strategies have to be presented in presence of distributed generations. The characteristic of fault current after distributed generations connect to distribution systems is analyzed, and the influence of relay protection of distribution systems by distributed generations is presented. Based on the summary of the protection configuration abroad and at home of distribution systems with distributed generations, current protection schemes are analyzed and discussed. And the development direction for protection configuration of distribution systems is presented. These will provide new ideas for protection configuration and will improve security and reliability of power system in the future.