分布式电站入网方式对电网同步的影响

发布时间：2018-05-04 03:12

本文选题：分布式电站入网方式 + 最短距离　；参考：《广西师范大学学报(自然科学版)》2017年04期

【摘要】：本文研究分布式电站通过接入原电网中负荷节点的方式接入电网。根据负荷节点到原电网中各发电机节点的平均距离情况,提出2种分布式电站入网方式:一种方式是新增分布式电站从离原发电机节点平均距离值最小的负荷开始接入,并按照平均距离值的升序顺序依次接入,简称方式A;另一种方式是新增分布式电站从离原发电机节点平均距离值最大的负荷开始接入,按照平均距离值的降序顺序依次接入,简称方式B。从电网统计特性和同步动力学角度进行比较,发现当分布式电站采用方式B接入电网时,网络节点分布较分散,网络同步能力较好,对离电站较近的负荷节点而言,其上的功率扰动引起的电网失同步波的扩散速度较慢,有利于失同步波的扩散抑制。此研究对分布式电站入网时提高电网可靠性运行提供了参考。
[Abstract]:In this paper, the distributed power station is connected to the power network by connecting the load nodes in the original power network. According to the average distance between the load node and the generator node in the original network, two kinds of distributed power station access modes are proposed: one is that the new distributed power station is connected from the load with the smallest average distance from the original generator node. And access in order according to the ascending order of the average distance value, referred to as mode A. another way is that the new distributed power station starts from the load with the maximum average distance value from the original generator node, and accesses in turn according to the descending order of the average distance value. For short, mode B. From the point of view of statistical characteristics and synchronization dynamics of the power network, it is found that when the distributed power station uses mode B to connect to the power network, the network node distribution is more dispersed, and the network synchronization ability is better, for the load node close to the power station, The diffusion speed of the power disturbance caused by the power disturbance on the power system is slow, which is favorable to the suppression of the loss of synchronization wave diffusion. This study provides a reference for improving the reliability of power network when distributed power station enters the network.
【作者单位】：广西师范大学电子工程学院;
【基金】：国家自然科学基金(11562003) 广西多源信息挖掘与安全重点实验室系统性研究课题(13-A-02-03)
【分类号】：TM732

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