Mechanism of STATCOM Assisting Transient Voltage under Commutation Failure at Weak Sending End System and Its Optimization Strategy

Zhuohang LIANG; Chun SHI; Yansong LI; Jun LIU

doi:10.12204/j.issn.1000-7229.2022.06.007

PDF(4253 KB)

Electric Power Construction ›› 2022, Vol. 43 ›› Issue (6) : 66-74. DOI: 10.12204/j.issn.1000-7229.2022.06.007

Core Equipment of DC Power Grid ?Hosted by Associate Professor SONG Qiang, Associate Professor YU Zhanqing and Associate Professor ZHAO Biao?

Mechanism of STATCOM Assisting Transient Voltage under Commutation Failure at Weak Sending End System and Its Optimization Strategy

Author information +

History +

Abstract

With the large-scale access of new energy, the power grid presents the characteristics of strong DC system and weak AC system. When commutation failure occurs in HVDC transmission system, transient overvoltage will appear in weak sending end system. Since STATCOM responds to the change of grid voltage through the command of control link, the lag of its control link will lead to the enhancement of transient overvoltage by STATCOM. Firstly, in view of this phenomenon, this paper analyzes the generation mechanism of AC transient overvoltage in weak sending end system under commutation failure. Secondly, by analyzing the frequency response characteristics, theoretical derivation of STATCOM response delay time is given. Finally, an optimization strategy based on damped switching is proposed to suppress STATCOM’s increasing effect on overvoltage response, and the effectiveness of the optimization strategy is verified by simulation. This work is supported by National Natural Science Foundation of China (No. 51277066) and State Grid Corporation of China Research Program (No. 5102-201956301A-0-0-00).

Key words

STATCOM / commutation failure / HVDC / transient overvoltage

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Zhuohang LIANG , Chun SHI , Yansong LI , et al. Mechanism of STATCOM Assisting Transient Voltage under Commutation Failure at Weak Sending End System and Its Optimization Strategy[J]. Electric Power Construction. 2022, 43(6): 66-74 https://doi.org/10.12204/j.issn.1000-7229.2022.06.007

References

List( Publishing order | Descend order by publishing year | Descend order by cited within ) Chart analysis

[1]	王俊. 浅谈电容无功补偿的常用计算[J]. 数字技术与应用, 2010(12): 90. Cited in this article [1]

[2]	韩民晓, 文俊, 徐永海. 高压直流输电原理与运行[M]. 北京: 机械工业出版社, 2009. Cited in this article [1]

[3]

卢东斌, 田杰, 李海英, 等. 电网换相换流器和电压源换流器串联组成的混合直流换流器控制和保护研究[J]. 电力系统保护与控制, 2020, 48(15): 92-101.

Dongbin

, TIAN

Jie

, LI

Haiying

, et al. Control and protection of series hybrid DC converters with a line-commutated converter and a voltage source converter[J]. Power System Protection and Control, 2020, 48(15): 92-101.

Cited in this article [1]

[4]

郭小江, 马世英, 申洪, 等. 大规模风电直流外送方案与系统稳定控制策略[J]. 电力系统自动化, 2012, 36(15): 107-115.

GUO

Xiaojiang

, MA

Shiying

, SHEN

Hong

, et al. HVDC grid connection schemes and system stability control strategies for large-scale wind power[J]. Automation of Electric Power Systems, 2012, 36(15): 107-115.

Cited in this article [1]

[5]

王艺璇, 张鑫, 穆清, 等. 特高压直流分层接入系统换相失败预防控制参数优化[J]. 高电压技术, 2018, 44(1): 329-336.

WANG

Yixuan

, ZHANG

Xin

, MU

Qing

, et al. Parameter optimization of commutation failure prevention and control of UHVDC hierarchical connection to AC grid system[J]. High Voltage Engineering, 2018, 44(1): 329-336.

Cited in this article [1]

[6]

邢超, 奚鑫泽, 李胜男, 等. 大容量STATCOM对于受端直流换流站运行与故障特性影响[J]. 电力系统保护与控制, 2019, 47(15): 78-85.

XING

Chao

, XI

Xinze

, LI

Shengnan

, et al. Effect of large capacity STATCOM on operation and fault characteristics of receiving DC converter station[J]. Power System Protection and Control, 2019, 47(15): 78-85.

Cited in this article [1]

[7]

刘振亚, 张启平, 董存, 等. 通过特高压直流实现大型能源基地风、光、火电力大规模高效率安全外送研究[J]. 中国电机工程学报, 2014, 34(16): 2513-2522.

LIU

Zhenya

, ZHANG

Qiping

, DONG

Cun

, et al. Efficient and security transmission of wind, photovoltaic and thermal power of large-scale energy resource bases through UHVDC projects[J]. Proceedings of the CSEE, 2014, 34(16): 2513-2522.

Cited in this article [1]

[8]	付敏, 赫英明, 印钊阳. 弱送端HVDC系统中无功补偿装置的性能分析[J]. 电力系统及其自动化学报, 2019, 31(6): 129-136. FU Min, HE Yingming, YIN Zhaoyang. Performance analysis of reactive power compensation device at weak sending end in HVDC system[J]. Proceedings of the CSU-EPSA, 2019, 31(6): 129-136. Cited in this article [1]

[9]	付文秀, 范春菊. SVG在双馈风力发电系统电压无功控制中的应用[J]. 电力系统保护与控制, 2015, 43(3): 61-68. FU Wenxiu, FAN Chunju. Application of SVG in voltage and reactive power control of doubly-fed induction generation system[J]. Power System Protection and Control, 2015, 43(3): 61-68. Cited in this article [1]

[10]	李高望, 李亚男, 邹欣. ±800kV锡盟-泰州特高压直流输电工程交流侧暂态过电压[J]. 电力建设, 2015, 36(9): 57-61. LI Gaowang, LI Yanan, ZOU Xin. AC-side transient overvoltage in ± 800 kV Ximeng-Taizhou UHVDC transmission project[J]. Electric Power Construction, 2015, 36(9): 57-61. Cited in this article [1]

[11]	艾红杰, 黄金海, 吴金波, 等. 陕北—武汉特高压直流输电工程无功控制策略研究[J]. 电力系统保护与控制, 2021, 49(14): 149-156. AI Hongjie, HUANG Jinhai, WU Jinbo, et al. Reactive power control strategy for the Shanbei—Wuhan UHVDC transmission project[J]. Power System Protection and Control, 2021, 49(14): 149-156. Cited in this article [1]

[12]	GUO C Y, ZHANG Y, GOLE A M, et al. Analysis of dual-infeed HVDC with LCC-HVDC and VSC-HVDC[J]. IEEE Transactions on Power Delivery, 2012, 27(3): 1529-1537. Cited in this article [1]

[13]

金一丁, 于钊, 李明节, 等. 新一代调相机与电力电子无功补偿装置在特高压交直流电网中应用的比较[J]. 电网技术, 2018, 42(7): 2095-2102.

JIN

Yiding

, YU

Zhao

, LI

Mingjie

, et al. Comparison of new generation synchronous condenser and power electronic reactive-power compensation devices in application in UHV DC/AC grid[J]. Power System Technology, 2018, 42(7): 2095-2102.

Cited in this article [1]

[14]

郭春义, 蒋雯, 郑安然, 等. 弱交流系统下STATCOM对LCC-HVDC小干扰稳定裕度的影响研究[J]. 中国电机工程学报, 2018, 38(19): 5679-5686, 5925.

GUO

Chunyi

, JIANG

Wen

, ZHENG

Anran

, et al. Impact of STATCOM on the small-signal stability margin of LCC-HVDC under weak AC grid conditions[J]. Proceedings of the CSEE, 2018, 38(19): 5679-5686, 5925.

Cited in this article [1]

[15]

索之闻, 刘建琴, 蒋维勇, 等. 大规模新能源直流外送系统调相机配置研究[J]. 电力自动化设备, 2019, 39(9): 124-129.

SUO

Zhiwen

, LIU

Jianqin

, JIANG

Weiyong

, et al. Research on synchronous condenser configuration of large-scale renewable energy DC transmission system[J]. Electric Power Automation Equipment, 2019, 39(9): 124-129.

Cited in this article [1]

[16]

李旭旻, 顾丹珍, 杨秀, 等. Statcom对多馈入直流输电系统换相失败恢复过程的影响[J]. 电测与仪表, 2020, 57(13): 55-60, 111.

Xumin

, GU

Danzhen

, YANG

Xiu

, et al. Effect of Statcom on recovery process of commutation failure in multi-infeed HVDC system[J]. Electrical Measurement & Instrumentation, 2020, 57(13): 55-60, 111.

Cited in this article [1]

[17]	毕训训. 静止无功发生器控制策略研究[D]. 西安: 西安科技大学, 2019. BI Xunxun. Study on control strategy of static var generator[D]. Xi'an: Xi'an University of Science and Technology, 2019. Cited in this article [1]

[18]	高本锋, 毛亚鹏. STATCOM与HVDC综合协调控制策略[J]. 电测与仪表, 2018, 55(14): 82-87, 112. GAO Benfeng, MAO Yapeng. Coordinated control strategy of STATCOM and HVDC[J]. Electrical Measurement & Instrumentation, 2018, 55(14): 82-87, 112. Cited in this article [1]

[19]	高三策. SVG无功补偿装置的设计与实现[D]. 哈尔滨: 东北农业大学, 2019. GAO Sance. Design and implementation of SVG reactive power compensation device[D]. Harbin: Northeast Agricultural University, 2019. Cited in this article [1]

[20]	周娟, 杨擎, 董浩, 等. H桥级联型STATCOM启动策略研究[J]. 电测与仪表, 2016, 53(8): 32-37, 56. ZHOU Juan, YANG Qing, DONG Hao, et al. Research on H-bridge cascaded STATCOM starting strategy[J]. Electrical Measurement & Instrumentation, 2016, 53(8): 32-37, 56. Cited in this article [1]

[21]

屠竞哲, 张健, 刘明松, 等. 风火打捆直流外送系统直流故障引发风机脱网的问题研究[J]. 电网技术, 2015, 39(12): 3333-3338.

Jingzhe

, ZHANG

Jian

, LIU

Mingsong

, et al. Study on wind turbine generators tripping caused by HVDC contingencies of wind-thermal-bundled HVDC transmission systems[J]. Power System Technology, 2015, 39(12): 3333-3338.

Cited in this article [1]

[22]	刘琳, 雷霄, 孔祥平, 等. 抑制换相失败期间送端电网过电压的控制策略研究[J]. 电力工程技术, 2019, 38(3): 60-66. LIU Lin, LEI Xiao, KONG Xiangping, et al. The control strategy for suppressing overvoltage of sending grid during commutation failure[J]. Electric Power Engineering Technology, 2019, 38(3): 60-66. Cited in this article [2]

[23]

刘博, 郭春义, 赵成勇. 直流斩波器对抑制换相失败引发的弱送端电网暂态过电压的研究[J]. 电网技术, 2019, 43(10): 3578-3586.

LIU

, GUO Chunyi, ZHAO Chengyong. Research on DC chopper in suppressing transient overvoltage of weak sending terminal caused by commutation failure[J]. Power System Technology, 2019, 43(10): 3578-3586.

Cited in this article [1]

[24]

吕清洁, 徐政, 李晖, 等. 动态无功补偿对风电场暂态电压的影响及控制策略[J]. 电力建设, 2015, 36(8): 122-129.

LYU

Qingjie

, XU

Zheng

, LI

Hui

, et al. Effects of dynamic reactive power compensation on wind farm transient voltage and its control strategy research[J]. Electric Power Construction, 2015, 36(8): 122-129.

Cited in this article [1]

[25]	石宗林. 静止无功发生器(SVG)无功电流检测及控制策略研究[D]. 锦州: 辽宁工业大学, 2014. SHI Zonglin. The reactive power detection method and the control strategy of static var generator(SVG)[D]. Jinzhou: Liaoning University of Technology, 2014. Cited in this article [1]

[26]

赵学明, 李永丽, 孙广宇, 等. 换相失败对含风电场的交直流混联系统送端过电压的影响[J]. 高电压技术, 2019, 45(11): 3666-3673.

ZHAO

Xueming

, LI

Yongli

, SUN

Guangyu

, et al. Effect of commutation failure on the overvoltage on rectifier station in AC/DC hybrid power system with wind farms[J]. High Voltage Engineering, 2019, 45(11): 3666-3673.

Cited in this article [1]

[27]

屠竞哲, 张健, 曾兵, 等. 直流换相失败及恢复过程暂态无功特性及控制参数影响[J]. 高电压技术, 2017, 43(7): 2131-2139.

Jingzhe

, ZHANG

Jian

, ZENG

Bing

, et al. HVDC transient reactive power characteristics and impact of control system parameters during commutation failure and recovery[J]. High Voltage Engineering, 2017, 43(7): 2131-2139.

Cited in this article [1]