基于RTDS的电力系统动态等值研究  

Dynamic Equivalence of Electric Power System Based on RTDS

作　　者：田寿涛 顾秀芳[1] 王蕴敏[3] 张旭 

机构地区：[1]内蒙古工业大学电力学院,内蒙古呼和浩特 [2]国网新疆电力公司经济技术研究院,新疆乌鲁木齐 [3]内蒙古电力科学研究院,内蒙古呼和浩特

出　　处：《智能电网（汉斯）》2017年第6期498-506,共9页Smart Grid

摘　　要：为解决电力系统模型规模超出RTDS硬件资源的问题,提出了动态等值的思路和实现方法。主要思路为:根据电气距离按外部系统中发电机与内部系统的联系紧密程度进行排序,并结合RTDS硬件处理能力,确定实现外部系统中宽频等值的电网范围,而对含有其它发电机的外部系统按照基于电气距离同调等值法进行化简。通过比较等值前后的静态潮流和动态响应证明了所提方案的有效性。A scheme and implementation are supplied in order to establish a large scale simulation model in RTDS. This paper proposes the solutions and realization method for the dynamic equivalence. The basic thought is as follows: ranking generators based on the electrical distance and closeness of generators in the external system with the internal system;determining the power grid scope to realize wide-band equivalence in the external system according to the RTDS hardware processing capacity;and simplifying the external system including other remained power generators with the coherency-based dynamic equivalence approach based on electrical distance. Effectiveness of the proposed equivalence plan has been verified by comparison of static power flow and dynamic response before and after equivalence.

关 键 词：动态等值 电气距离 宽频等值 

分 类 号：TM7[电气工程—电力系统及自动化]