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Event-Based Networked Islanding Detection for Distributed Solar PV Generation Systems

机译：分布式太阳能光伏发电系统基于事件的网络孤岛检测

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摘要

This paper proposes an event-based networked set-membership filtering method to detect islanding fault for distributed grid-connected solar photovoltaic generation systems. The method enables each set-membership filter to offer an ellipsoidal estimation set, which is used to judge whether or not the islanding fault happens. When islanding fault happens, the intersection of the ellipsoids is empty, and when islanding fault is free, the intersection of the ellipsoids is nonempty. In the filtering scheme, a novel event-triggered mechanism is proposed to reduce the transmission frequency for saving the communication resources. The condition of the existence of the set-membership algorithm is derived by a time-varying convex optimization approach. A simulation experiment and a comparative experiment are provided using Sim-Power-Systems implementation based on a 2-kW single-phase grid-connected power generation system to illustrate the effectiveness of the proposed method for the detection of the islanding fault and the reduction of the resource consumption, respectively.
机译：提出了一种基于事件的网络集成员滤波方法，用于分布式光伏并网发电系统的孤岛故障检测。该方法使每个集成员资格滤波器能够提供椭圆估计集，该椭圆集用于判断是否发生孤岛故障。当发生孤岛断层时，椭球的交集为空，而当孤岛断层为自由时，椭球的交集为非空。在过滤方案中，提出了一种新颖的事件触发机制，以降低传输频率，从而节省了通信资源。集合成员算法存在的条件是通过时变凸优化方法得出的。利用基于2 kW单相并网发电系统的Sim-Power-Systems实施方案提供了仿真实验和比较实验，以说明所提出的方法检测孤岛故障和减少孤岛故障的有效性。资源消耗。

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