电力系统保护与控制2012，Vol.40Issue(11)：133-139,7.
银东±660kV直流系统故障的动态特性仿真研究
Fault simulation of dynamic characteristics about ±660 kV Yindong HVDC system
郭启伟 1赵建国 2牛林 2于大洋 1任敬国1
作者信息
- 1. 山东大学电气工程学院,山东济南250061
- 2. 国网技术学院,山东济南250002
- 折叠
摘要
Abstract
This paper analyzes the dynamic characteristics of ±660 kV Yindong HVDC system under fault based on PSCAD. A detailed DC model is established and AC equivalent (Shandong power grid) model of inverter side is designed using a physical equivalent method, then an available method for exchanging AC networks is put forward. The consistency of AC system dynamics is inspected through the 500 kV bus short-circuit test of Shandong grid, the DC system's dynamic characteristics are simulated and analyzed under the DC line fault and commutation failure. Simulation results show that DC line fault location is unrelated to voltage and current trends, and DC system will quickly resume normal operation under the action of control system if line-to-ground flashover failure automatically restore after gone free; electric distance and the fault type are important factors leading to the commutation failure. The AC-DC model can be refined for further research.关键词
直流系统/PSCAD/等值/故障/仿真/动态特性Key words
HVDC system/ PSCAD/ equivalent/ fault/ simulation/ dynamic characteristics分类
信息技术与安全科学引用本文复制引用
郭启伟,赵建国,牛林,于大洋,任敬国..银东±660kV直流系统故障的动态特性仿真研究[J].电力系统保护与控制,2012,40(11):133-139,7.
