摘要详情

ID / 提交时间

248 / 2021-11-05 10:49:43

标题

Research on fault ride-through based on the coordination of blocking converter and energy storage system

关键字

fault ride-through, blocking converter, energy storage system

主题及专题

Power electronics technology and application > Modeling, simulation and control in power electronics

状态

全文被拒

作者

Zhankui Zhang / Shanghai Jiao Tong University

Miao Zhu / Shanghai Jiao Tong University

Yan Li / CEPRI

Yongning Chi / CEPRI

Shuli Wen / Shanghai Jiao Tong University

摘要

DC fault blocking methods are mainly divided into DC circuit breaker and fault blocking converter. If the DC distribution network continues to adopt the high-voltage DC network and multi terminal DC topology, a large number of DC circuit breakers are required, which has the problems of high economic cost, large operation and maintenance workload and so on. For example, in Hangzhou intelligent flexible DC distribution network demonstration project, the cost of DC circuit breaker is about 35% of the cost of converter. The fault blocking converter realizes the rapid isolation of the fault point by blocking the energy feed path of the AC transverse fault point and combining with the DC fast switch. In DC distribution network, the scheme of fault blocking converter without DC circuit breaker is more suitable. However, DC distribution network technology without DC circuit breaker is generally in its infancy, and there are some key problems to be solved. One of them is how to realize fault ride through in DC distribution network without DC circuit breaker. The fault ride through technology of block converter and energy storage system is the cutting-edge direction. Overcoming this problem is of great significance to the development of DC distribution network. Studying the topology and operation mechanism of blocking converter and constructing DC distribution network without DC circuit breaker will reduce the cost of DC distribution network and improve the economy of DC distribution network. Study the rapid fault recovery technology of DC distribution network and the energy storage coordination technology during converter locking, so as to realize the uninterrupted power supply of load, ensure the rapid recovery of normal operation of DC distribution system, and help improve the power supply reliability of DC distribution network. The successful development of DC distribution network fault detection and ride through technology without DC circuit breaker will improving the competitiveness of related industries.

重要日期

会议日期

07月11日

2023

至

08月18日

2023
11月10日 2021

初稿截稿日期
12月10日 2021

注册截止日期
12月11日 2021

报告提交截止日期

主办单位

IEEE IAS

承办单位

IEEE IAS Student Chapter of Southwest Jiaotong University (SWJTU)
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
IEEE PELS (Power Electronics Society) Student Chapter of HUST