【摘要】 电网各类负载的投切操作会引起系统暂态过程并在网内传播,甚至扩大,相控开关技术可以有效地削弱这种暂态过程。首先介绍了选相控制断路器的国内外应用状况与最新动态,然后论述了断路器的机械特性、介质绝缘特性以及控制系统精度等几个关键因素对相控开关技术的影响,并分析了其综合效益与发展趋势,最后探讨了在我国推广相控开关技术的必要性与可行性。更多还原

【Abstract】 All switching operations in power system will cause transient process which propagate in network.Phase-control switching technology of circuit breakers has become an increasingly useful method to mitigate the transient process for a range of specific load cases.Firstly,the domestic and oversea application and the latest development of phase-control circuit breaker are introduced.Then several key problems of phase-control switching,including mechanical characteristic,insulation characteristic of dielectric,precision of controller are presented,and its comprehensive benefit and the development trend are also analyzed.Finally,the necessity and feasibility of popularizing phase-control switching technology in our country are discussed.更多还原