Commutation Failure Prediction and Control System Optimization Based on DC Current Variation

被引：0

作者：

Zhou B. ^{[1
]}

Li F. ^{[1
]}

Song X. ^{[2
]}

Yin C. ^{[1
]}

机构：

[1] Engineering Research Center for Renewable Energy Power Generation and Grid Technology, Xinjiang University, Ministry of Education, Urumqi, 830047, Xinjiang Uygur Autonomous Region

[2] Economic and Technical Research Institute of Xinjiang Electric Power Co., Ltd., Urumqi, 830011, Xinjiang Uygur Autonomous Region

来源：

Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Commutation failure prediction; DC current variation; Extinction angle control; HVDC power transmission;

D O I：

10.13335/j.1000-3673.pst.2019.0444

中图分类号：

学科分类号：

摘要：

The prediction and mitigation of commutation failure are influenced by the accuracy of extinguishing angle during fault transient period. In order to reduce the calculation error of extinction angle during fault transient period, the calculation formula of extinction angle including DC current variation is deduced by analyzing the commutation process of inverters. A method to improve the prediction accuracy of DC current variation during commutation is proposed. A commutation failure prediction criterion based on DC current differential is proposed. The conventional predictive extinction angle controller is optimized to ameliorate its control effect during fault transient period by adding DC current prediction module. Based on PSCAD/EMTDC simulation platform, a DC standard test model is built to simulate and analyze under the grounding faults of different transition resistors and inductors, which validates the effectiveness of the predictive commutation failure method and control strategy. © 2019, Power System Technology Press. All right reserved.

引用

页码：3497 / 3503

页数：6

共 22 条

[21] Zhao S., Dong P., Pu Y., Et al., Research on influence of inverter side control strategy on commutation failure, Power System Technology, 40, 12, pp. 3840-3848, (2016)
[22] Shu H., Liu K., Zhu S., Et al., ±800kV UHVDC transmission line protection based on single end electrical transient signal, Proceedings of the CSEE, 30, 31, pp. 108-117, (2010)

← 1 2 3 →