Home > Archive>Volume 39, Issue 1, 2020 >64-70. DOI:10.12158/j.2096-3203.2020.01.009
PDF HTML XML Export Cite reminder
Power flow calculation of multi terminal AC / DC system based on hybrid converter
Author:
Clc Number:

TM734

  • Article
    • | |
  • Metrics
    • |
  • Reference [21]
    • |
  • Related
    • |
  • Cited by
    • | |
  • Comments
    Abstract:

    LCC and VSC are essentially different in the steady-state model and working principle. When the two converters are mixed and applied to the same multi-terminal HVDC transmission system, the steady-state mathematical model and the power flow calculation method have also changed accordingly. Firstly, the steady-state model of the hybrid system is described. Then, based on the comprehensive consideration of the working principle and control mode of the two converters, the mathematical model of the power flow calculation of the hybrid system is derived. Furthermore, an alternating solution algorithm suitable for the hybrid system is proposed. Finally, the effectiveness and accuracy of the proposed algorithm are verified by a hybrid DC transmission system example and a hybrid three-terminal system.

    Reference
    [1] 郝亮亮, 詹清清, 陈争光, 等. LCC-MMC型混合直流送端交流系统故障时直流电流的暂态过程解析[J]. 电力自动化设备, 2019, 39(9):220-227. HAO Liangliang, ZHAN Qingqing, CHEN Zhengguang, et al. Analysis of DC current transient process when LCC-MMC hybrid DC transmission AC system failure[J]. Electric Power Automation Equipment, 2019, 39 (9): 220-227.
    [2] 倪晓军, 郭春义, 赵成勇, 等. LCC-HVDC直流控制模式对混合双馈入直流系统运行特性的影响[J]. 电网与清洁能源, 2017, 33(1):24-30. NI Xiaojun, GUO Chunyi, ZHAO Chengyong, et al. Influence of LCC-HVDC DC control mode on the operating characteristics of hybrid double-fed DC system[J]. Power System and Clean Energy, 2017, 33 (1): 24-30.
    [3] 夏成军, 王真, 周保荣, 等. VSC-HVDC对LCC-HVDC受端系统电压支撑强度的影响[J]. 电网技术, 2019, 43(6):2031-2038. XIA Chengjun, WANG Zhen, ZHOU Baorong, et al. The effect of VSC-HVDC on the voltage support strength of LCC-HVDC receiving end system[J]. Power System Technology, 2019, 43 (6): 2031-2038.
    [4] 郭春义, 赵剑, 刘炜, 等. 抑制高压直流输电系统换相失败方法综述[J]. 中国电机工程学报, 2018, 38(S1):1-10. GUO Chunyi, ZHAO Jian, LIU Wei, et al. Summary of methods for suppressing commutation failures in HVDC transmission systems[J]. Chinese Journal of Electrical Engineering, 2018, 38 (S1): 1-10.
    [5] 李春华, 李明, 黄莹, 等. 一种抑制高压直流输电换相失败的控制优化方法和装置[J]. 南方电网技术, 2017, 11(6):1-7. LI Chunhua, LI Ming, HUANG Ying, et al. A control optimi-zation method and device for suppressing commutation failure of HVDC transmission[J]. China Southern Power Grid Tech-nology, 2017, 11 (6): 1-7.
    [6] 严逍,焦彦军,杜哲. 基于多端VSC技术的一种交直流混合配电网网络结构[J]. 电力建设, 2016, 37(12): 48-54. YAN Shao, JIAO Yanjun, DU Zhe. An AC/DC hybrid distri-bution network structure based on multi-terminal VSC tech-nology[J]. Power Construction, 2016, 37 (12): 48-54.
    [7] 刘洪波,刘海涵,聂建航. 用于风电并网的VSC-HVDC网侧换流器改进控制策略[J]. 电力建设, 2017, 38(10):10-16. LIU Hongbo, LIU Haihan, NIE Jianhang. Improved control strategy of VSC-HVDC grid-side converter for wind power integration[J]. Power Construction, 2017, 38(10): 10-16.
    [8] 邓旗, 张英敏, 曾琦, 等. 一种VSC-MTDC系统的综合协调控制策略[J]. 电力建设, 2017, 38(8): 59-63. DENG Qi, ZHANG Yingmin, ZENG Qi, et al. An integrated coordinated control strategy for VSC-MTDC system[J]. Power Construction, 2017, 38 (8): 59-63.
    [9] 黄俊玮, 谭建成, 文泓铸. LCC-MMC型混合直流输电系统综述[J]. 电气开关, 2019, 57(5):1-5, 10. HUANG Junwei, TAN Jiancheng, WEN Hongzhu. A summary of LCC-MMC hybrid DC transmission system[J]. Electrical Swi-tch, 2019, 57 (5): 1-5 , 10.
    [10] 高淑萍, 朱航舰, 张保会, 等. 基于LCC-HVDC和VSC-HVDC的混合双极直流输电系统的建模及仿真分析[J]. 河南机电高等专科学校学报, 2018, 26(2):1-6. GAO Shuping, ZHU Hangjian, ZHANG Baohui, et al. Modeling and simulation analysis of hybrid bipolar DC transmission system based on LCC-HVDC and VSC-HVDC[J]. Journal of Henan Mechanical and Electrical Engineering College, 2018, 26 (2):1-6.
    [11] KOTB O, SOOD V K. A hybrid HVDC transmission system supplying a passive load[C]//2010 IEEE Electric Power and Energy Conference (EPEC). Halifax, CA: IEEE, 2010: 1-5.
    [12] CHEN X, SUN H, WEN J, et al. Integrating wind farm to the grid using hybrid multiterminal HVDC technology[J]. IEEE Transactions on Industry Applications, 2011, 47(2): 965-972.
    [13] 雷霄,王华伟,曾南超,等. LCC与VSC混联型多端高压直流输电系统运行特性的仿真研究[J]. 电工电能新技术,2013,32(2):48-52. LEI Xiao, WANG Huawei, ZENG Nanchao, et al. Simulation stu-dy on operating characteristics of LCC and VSC hybrid multi-terminal HVDC transmission system[J]. Advanced Technology of Electrical Engineering and Energy, 2013, 32(2):48-52.
    [14] 杨洋, 王瑶, 李浩涛, 等. 子模块混合型LCC-MCC混合直流输电系统的启动控制策略[J]. 电力系统保护与控制, 2018, 46(8):58-64. YANG Yang, WANG Yao, LI Haotao, et al. Startup control st-rategy for sub-module hybrid LCC-MCC hybrid HVDC transmission system[J]. Power System Protection and Control, 2018, 46(8): 58-64.
    [15] 姚文峰,洪潮,周保荣,等. 采用常规直流配置动态无功补偿或柔性直流对受端广东电网稳定性影响的对比分析[J]. 南方电网技术,2017,11(7):45-50. YAO Wenfeng, HONG Chao, ZHOU Baorong, et al. Compa-rative analysis of the effects of dynamic reactive power compensation or flexible DC on the stability of Guangdong power grid in conventional DC configuration[J]. China Southern Power Grid Technology, 2017, 11 (7): 45-50.
    [16] 黄伟煌,饶宏,黄莹,等. 一种基于常规直流输电系统混合直流改造方案[J]. 中国电机工程学报,2017,37(10):2861-2827. HUANG Weihuang, RAO Hong, HUANG Ying, et al. A hybrid DC transformation scheme based on conventional DC transmission system[J]. Chinese Journal of Electrical Engineering, 2017, 37(10): 2861-2827.
    [17] 蔡宜君, 文明浩, 陈玉,等. LCC-MCC混合直流输电系统整流侧故障穿越控制策略[J]. 电力系统保护与控制, 2018, 46(14):1-8. CAI Yijun, WEN Minghao, CHEN Yu, et al. Control strategy of LCC-MCC hybrid HVDC system under rectifier side fault[J]. Power System Protection and Control, 2018, 46(14):1-8.
    [18] 时伯年, 洪潮, 孙刚. 交流不对称故障下的LCC-MCC混合直流系统输送功率提升策略研究[J]. 电力系统保护与控制, 2017, 45(20):73-78. SHI Bonian, HONG Chao, SUN Gang. Research on the power transmission strategy of LCC-MCC hybrid DC system under AC asymmetric faults[J]. Power System Protection and Control, 2017, 45(20): 73-78.
    [19] 叶芳,卫志农,孙国强. 含 VSC-MTDC 的交直流混合系统的改进潮流算法[J]. 河海大学学报(自然科学版),2011,39(3):338-343. YE Fang, WEI Zhinong, SUN Guoqiang. Improved power flow algorithm for AC/DC hybrid systems with VSC-MTDC[J]. Journal of Hohai University (Natural Science Edition), 2011, 39(3): 338-343.
    [20] 陈域, 郝全睿, 张静. 含VSC-HVDC的交直流混合网络的动态潮流计算方法[J]. 电网技术, 2018, 42(9):2892-2899. CHEN Yu, HAO Quanrui, ZHANG Jing. Dynamic power flow calculation method of AC/DC hybrid network with VSC-HVDC[J]. Power System Technology, 2018, 42 (9): 2892-2899.
    [21] 徐经民, 徐在德, 童超. 基于模糊下垂控制的VSC-HVDC交直流系统潮流计算方法[J]. 电力系统保护与控制, 2019, 47(20):50-57. XU Jingmin, XU Zaide, TONG Chao. Power flow calculation method of VSC-HVDC AC/DC system based on fuzzy droop control[J]. Power System Protection and Control, 2019, 47 (20): 50-57.
    Related
    Cited by
Get Citation

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:July 13,2019
  • Revised:September 02,2019
  • Adopted:November 07,2019
  • Online: January 20,2020
  • Published: January 28,2020
Article QR Code
You are the th visitor
 Editorial Department of Electric Power Engineering Technology     苏ICP备16068564号-1
Address: No.1 Power Road, Jiangning District, Nanjing, China. Zip Code: 211103
E- mail: epet@ijournals.cn;  epet-editor@ijournals.cn

苏公网安备 32011502010441号
Electric Power Engineering Technology Website Design ® 2025 All Rights Reserved