CAJ | 학술논문

在总结以前系列母线保护多年运行维护经验的基础上，PCS-915系列母线保护装置采用了新的原理及技术。采用基于工频变化量差动的自适应加权式抗电流互感器饱和判据及谐波制动判据，具有很强的抗电流互感器饱和能力及稳定可靠的动作特性。基于新一代控制保护硬件平台UAPC实现，软硬件设计模块化，便于升级维护；采用了新型面向间隔对象的母线保护设计方法，母线保护的差动构成灵活、可靠，可以灵活适应各种主接线系统的需求。分布式母线保护采用基于链路层数据时标锁定的同步方案，同步算法占用计算资源少，无需外接同步源，同步方案稳定、可靠且同步精度高。
재총결이전계렬모선보호다년운행유호경험적기출상，PCS-915계렬모선보호장치채용료신적원리급기술。채용기우공빈변화량차동적자괄응가권식항전류호감기포화판거급해파제동판거，구유흔강적항전류호감기포화능력급은정가고적동작특성。기우신일대공제보호경건평태UAPC실현，연경건설계모괴화，편우승급유호；채용료신형면향간격대상적모선보호설계방법，모선보호적차동구성령활、가고，가이령활괄응각충주접선계통적수구。분포식모선보호채용기우련로층수거시표쇄정적동보방안，동보산법점용계산자원소，무수외접동보원，동보방안은정、가고차동보정도고。
Based on the former operating experience of RCS-915 series busbar protection products, a novel principle and technology is adopted for PCS-915 series busbar protections. An adaptive weighted algorithm based on the deviation power frequency component percentage differential protection, current transformer saturation criterion and harmonic restraint criterion is adopted, PCS-915 series busbar protections have strong ability to resist current transformer saturation and stable, reliable operation characteristics. Based on the implementation of new generation of protection and control hardware platform UAPC, it implements modularization both for software and hardware. So it is easy for the protection to upgrade and maintenance. The adopted new object-oriented busbar differential protection design method makes the differential busbar protection more flexible and reliable. It can easily meet the requirements of different main diagram in the power system. The distributed busbar protection uses the data link layer time locking synchronization scheme with tess computing resource, not need to connect external synchronization source. The synchronization scheme is stable, reliable and with high accuracy.