基于电阻变化率和有功功率的混合孤岛检测方法
HYBRID ISLANDING DETECTION METHOD BASED ON RATE OF CHANGE OF RESISTANCE AND ACTIVE POWER
高淑萍 1郭芳宾 1邵美阳 2韩寅峰3
作者信息
- 1. 西安科技大学电气与控制工程学院,西安 710054;西安市电气设备状态监测与供电安全重点实验室,西安 710054
- 2. 国网陕西省电力公司电力科学研究院,西安 710100
- 3. 国网浙江省电力有限公司宁波供电公司,宁波 315016
- 折叠
摘要
为解决传统检测方法阈值设置困难、对电能质量影响大的问题,提出一种基于电阻变化率和有功功率扰动相结合的混合孤岛检测方法.电阻变化率作为被动方法,该特征量在孤岛后可快速响应,有功功率扰动模块仅在被动方法怀疑孤岛时开启,自适应注入能使公共耦合点电压越限的最小有功功率.仿真结果表明,该方法可快速正确地检测出孤岛,即便在非孤岛情况下也不会发生误判.
Abstract
In order to solve the problem that the traditional detection method is difficult to set the threshold and has great influence on power quality,a hybrid islanding detection method based on the combination of resistance change rate and active power disturbance is proposed.As a passive method,the resistance change rate can respond quickly after islanding,and the active power disturbance module is turned on only when the passive method suspects islanding,and the minimum active power that can make the voltage of the common coupling point exceed the limit is injected adaptively.The simulation results show that this method can quickly and correctly detect the islanding effect,and there will be no misjudgment even in the case of non-islanding.
关键词
分布式发电/故障检测/电能质量/混合孤岛检测方法/有功功率扰动Key words
distributed power generation/fault detection/power quality/hybrid islanding detection method/active power disturbance引用本文复制引用
基金项目
国家自然科学基金(51777166)
国家自然科学基金国际(地区)合作与交流项目(52061635105)
国家电网总部科技项目(52094020006U)
出版年
2024
NETL
NSTL
万方数据