A 25 MW soft-switching HVDC tap for ±500-kV transmission lines

被引:23
作者
Aredes, M [1 ]
Portela, C [1 ]
Machado, FC [1 ]
机构
[1] Fed Univ Rio De Janeiro, COPPE, Program Postgrad Elect Engn, BR-21941972 Rio De Janeiro, Brazil
关键词
DC-AC power conversion; HVDC tapping; soft-switching techniques;
D O I
10.1109/TPWRD.2004.835053
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 [电气工程]; 0809 [电子科学与技术];
摘要
This paper presents an optimization of a previously proposed high-voltage dc current transmission system (HVDC) tap system where the power rating of the soft-switching dc-dc converter has been increased to supply medium loads (up to 25 MW) from +/-500-kV HVDC transmission lines. This dc-dc converter is connected in series with a pole of the HVDC transmission line. It drains energy to a dc capacitor through an air-core transformer and a single-phase diode rectifier connected at the secondary. A pulsewidth-modulation (PWM) voltage-source converter is directly connected to this de capacitor to supply ac loads. The HVDC tap comprises all those components and can supply high-quality power to isolated or interconnected load areas. The controller of the HVDC tap is independent from the control systems of the main HVDC converter stations. It does not need any communication channel to the control of the main HVDC converter stations. A complete bipolar +/-500-kV HVDC system, together with a refined model of dc transmission line were implemented to simulate the performance of the proposed HVDC tap. It has reveled to be very robust and to be an attractive solution for feeding small loads from long dc transmission lines.
引用
收藏
页码:1835 / 1842
页数:8
相关论文
共 10 条
[1]
AQUINO AFC, 2001, P 9 ERL 9 ENC REG LA, P1
[2]
AQUINO AFC, P CBA 2000 13 C BRAS
[3]
HVDC tapping using soft switching techniques [J].
Aredes, M ;
Portela, C ;
Watanabe, EH .
ELECTRICAL ENGINEERING, 2001, 83 (1-2) :33-40
[4]
AREDES M, P 39 SESS CIGRE CD R
[5]
INTEGRATION OF SMALL TAPS INTO (EXISTING) HVDC LINKS [J].
BAHRMAN, M ;
BAKER, M ;
BOWLES, J ;
BUNCH, R ;
LEMAY, J ;
LONG, W ;
MCCONNACH, J ;
MENZIES, R ;
REEVE, J ;
SZECHTMAN, M .
IEEE TRANSACTIONS ON POWER DELIVERY, 1995, 10 (03) :1699-1706
[6]
A SMALL SERIES TAP ON AN HVDC LINE [J].
BOWLES, JP ;
NAKRA, HL ;
TURNER, AB .
IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS, 1981, 100 (02) :857-862
[7]
Multiterminal HVDC systems in urban areas of large cities [J].
Jiang, HB ;
Ekstrom, A .
IEEE TRANSACTIONS ON POWER DELIVERY, 1998, 13 (04) :1278-1284
[8]
LAMM U, 1963, DIRECT CURRENT, V8
[9]
Szechtman M., 1991, ELECTRA, V135, P54
[10]
APPLICATION OF GTO VOLTAGE-SOURCE INVERTER FOR TAPPING HVDC POWER [J].
ZHAO, Z ;
IRAVANI, MR .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 1994, 141 (01) :19-26