Manufacturing and Test of a 35 kV/90 MVA Saturated Iron-Core Type Superconductive Fault Current Limiter for Live-Grid Operation

被引：61

作者：

Xin, Yin ^{[1
]}

Gong, W. Z. ^{[1
]}

Niu, X. Y. ^{[1
]}

Gao, Y. Q. ^{[2
]}

Guo, Q. Q. ^{[2
]}

Xiao, L. X. ^{[3
]}

Cao, Z. J. ^{[1
]}

Hong, H. ^{[1
]}

Wu, A. G. ^{[4
]}

Li, Z. H. ^{[2
]}

Hu, X. M. ^{[1
]}

Tian, B. ^{[1
]}

Zhang, J. Y. ^{[1
]}

He, Y.

Wang, Y.

Cui, J. ^{[2
]}

Ding, S. Z. ^{[2
]}

Wang, J. Z. ^{[1
]}

Ren, A. L. ^{[1
]}

Ye, F. ^{[3
,4
]}

机构：

[1] Innopower Superconductor Cable Co Ltd, Beijing Econ & Technol Dev Area, Beijing 100176, Peoples R China

[2] Tianjin Machinery & Elect Ind Holding Grp Co Co, Tianjin 300100, Peoples R China

[3] Yunnan Power Grid Co, Kunming 650011, Yunnan, Peoples R China

[4] Tianjin Univ, Tianjin 300072, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期

关键词：

Current limiters; saturable cores; short circuit currents; superconducting coils; superconducting devices;

D O I：

10.1109/TASC.2009.2018510

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We developed a saturated iron-core type 35 kV/90 MVA superconductive fault current limiter and installed the device in a transmission network at Puji substation of China Southern Power Grid for live-grid operation. Innovative design in the iron-core configuration ensures that the device has low impedance in normal power transmission and sufficiently high impedance for a fault current limiting action. A magnetization control circuit allows the iron-core to be saturated or de-saturated depending upon the functional requirements. An energy release and voltage-surge protection unit can promptly discharge the magnetic energy accumulated in the iron-core and suppress the induced and surge voltages of the dc circuit in a current limiting event. This device has been designed to reduce the magnitude of a fault current by about 50%, which will prevent the breaking capacity of the existing circuit breakers in the transmission network from being exceeded in the predictable future. This article presents structural and functional specifications and reports up-to-date live-grid operation data of the device.

引用

页码：1934 / 1937

页数：4

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