Islanding Black-Start Method of UHVDC Power System Based on VSC-HVDC Technology

doi:10.3969/j.issn.1000－7229.2017.10.019

Abstract

Abstract: ABSTRACT： The UHVDC power transmission system has the advantages of long transmission distance and large capacity. As the large scale energy bases development transferring to the West and the North, relevant problems to UHVDC island sending system become the important challenge in the plan and design of energy base in some areas in the future. The response of UHVDC power system is faster than that of thermal generation units, and the minimum startup power of UHVDC doesnt match with the starting power of thermal generating units, which causes the difficult coordinated startup of UHVDC power system and thermal generating units. This paper proposes a new islanding black-start method for UHVDC island sending system based on VSC-HVDC technology. A small scale VSC-HVDC system can be easily built based on the existing devices in conventional DC transmission, which can assist islanding starting up the DC power system and sending system. The VSC-HVDC system can supply power to the generator units in islanding system and DC during system commissioning. Detailed simulation models of UHVDC, VSC-HVDC and thermal generation unit are built in PSCAD/EMTDC. The simulation result verifies the effectiveness and feasibility of the proposed method

Key words: UHVDC power transmission, islanding system, VSC-HVDC, black-start

CLC Number:

TM 73

QI Qingru, JIANG Weiyong, LIU Jianqin, CHANG Hao, ZHOU Zhuan. Islanding Black-Start Method of UHVDC Power System Based on VSC-HVDC Technology[J]. Electric Power Construction, 2017, 38(10): 138-.

References

［1］张中庆，颜俊，张立平，等. 糯扎渡、溪洛渡高压直流输电工程安全稳定控制系统［J］. 电力建设, 2014, 35(9): 65-70..

ZHANG Zhongqing, YAN Jun, ZHANG Liping, et al. Security and stability control system for Nuozhadu and Xiluodu HVDC transmission project［J］. Electric Power Construction, 2014, 35(9): 65-70.

［2］吕思卓，郑超，杨金刚，等. 送端直流孤岛系统频率限制器优化控制策略［J］. 电力建设, 2016, 37(2): 107-111..

LYU Sizhuo, ZHENG Chao, YANG Jingang, et al. FLC optimization control strategy of islanded HVDC sending system［J］. Electric Power Construction, 2016, 37(2): 107-111.

［3］徐攀腾. 云广特高压直流输电工程送端孤岛频率控制分析［J］. 电力建设, 2011, 32(11): 48-50..

XU Panteng. Frequency control analysis for islanded system at sending terminal in Yunnan—Guangdong UHVDC transmission project［J］. Electric Power Construction, 2011, 32(11): 48-50.

［4］郭小江，郭强，马世英，等. 直流孤岛送电系统的系统接入技术要求研究［J］. 中国电机工程学报, 2012, 32(34): 42-49..

GUO Xiaojiang, GUO Qiang, MA Shiying, et al. Research on system interconnection requirements of DC island sending systems［J］. Proceedings of the CSEE, 2012, 32(34): 42-49.

［5］肖湘宁, 李伟, 罗超, 等. 特高压直流孤岛运行特性与稳定控制研究综述［J］. 电工技术学报, 2017, 32(10): 1-11..

XIAO Xiangning, LI Wei, LUO Chao, et al. Survey on operational characteristics and stability control of Ultra-HVDC transmission system in islanded mode［J］. Transactions of China Electrotechnical Society, 2017, 32(10): 1-11.

［6］王华伟, 曾南超, 蒋卫平，等. ±660 kV中蒙直流工程送端孤岛运行方式最小功率启动研究［J］. 电网技术, 2010, 34(5): 83-87..

WANG Huawei, ZENG Nanchao, JIANG Weiping, et al. Study on minimal startup power of ±660 kV HVDC power transmission system under islanded operation at sending system［J］. Power System Technology, 2010, 34(5): 83-87.

［7］王华伟, 韩民晓, 胡涛，等. 送端孤岛直流系统与火电机组配合起动方法［J］. 电网技术, 2014, 38(4): 865-870..

WANG Huawei, HAN Minxiao, HU Tao, et al . Coordinated starting of thermal power generating units with islanded sending end of HVDC power system［J］. Power System Technology, 2014, 38(4): 865-870.

［8］徐政. 柔性直流输电系统［M］. 北京：机械工业出版社，2013：7-10.

［9］汤广福, 贺之渊, 庞辉. 柔性直流输电工程技术研究、应用及发展［J］. 电力系统自动化, 2013, 37(15): 3-14..

TANG Guangfu, HE Zhiyuan, PANG Hui. Research application and development of VSC-HVDC engineering technology［J］. Automation of Electric Power Systems, 2013, 37(15): 3-14.

［10］浙江大学直流输电科研组. 直流输电［M］. 北京：水利电力出版社，1985：121-130.

［11］赵婉君. 高压直流输电工程技术［M］. 北京：中国电力出版社，2011：103-104.

［12］李保宏, 刘天琪, 许韦华, 等. 直流参与受端弱交流系统黑启动的技术条件［J］. 电力自动化设备, 2016, 36(5): 23-29..

LI Baohong, LIU Tianqi, XU Weihua, et al. Technical conditions of HVDC for involving in black-start of weak receiving AC system［J］. Electric Power Automation Equipment, 2016, 36(5): 23-29.

［13］汪祖鑫. 超临界压力600 MW机组的启动和运行［M］. 北京：中国电力出版社，2012：10-61.

［14］国网北京经济技术研究院. 高压直流输电系统送端电网孤岛运行研究［R］. 北京: 国网北京经济技术研究院，2012.

［15］中国电力科学研究院. 中蒙直流输电工程最小起动容量及孤岛过电压研究［R］. 北京: 中国电力科学研究院，2008..

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