基于供电可靠性的配电网继电保护规划Planning of Protective Relay Coordination for Power Distribution Systems Based on Service Reliability
刘健;刘超;张小庆;张志华;
摘要(Abstract):
为了更好地进行配电网继电保护规划,提出了配电网继电保护的配置原则,论述了多级三段式过流保护所需的最小间距和级差配合继电保护的时间级差设置等关键技术问题,分别对在多个继电保护之间存在级联关系和不存在级联关系的情形下,继电保护配合和自动重合闸控制对停电户次数和供电可用率的改进效果进行了定量分析,分别给出了农村配电网和城市配电网的继电保护配合典型规划实例,表明所建议的配置原则是可行的,基于所推导的继电保护对供电可靠性影响的公式,有助于更加科学地开展规划并能够定量评估规划效果是否满意。
关键词(KeyWords): 配电网;故障;继电保护;供电可靠性;规划
基金项目(Foundation):
作者(Author): 刘健;刘超;张小庆;张志华;
Email:
DOI: 10.13335/j.1000-3673.pst.2016.07.038
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