|
|
|
| Study on the Accessof Multi-Terminal VSC-HVDC to an Island Grid |
| Yang Xiaolei |
| Maintenance and Test Branch, Chengdu Electric Power Bureau, Chengdu 610043 |
|
|
|
|
Abstract Multiterminal VSC-HVDC system(VSC-MTDC) is an ideal approach to connect wind farm with power grid. According to the planning, A VSC-MTDC projectwill be built in an island. The wind farms and load on the island will be connected with the land grid through AC and DC transmission lines, so performance of systemwill be very complex. To build strong smart grid, the effect of VSC-MTDC on the grid should be analyzed detailedly. The model of AC-DC hybrid transmission system which contains VSC-MTDC is built in the PSCAD/EMDTC, and the stability characteristics of grid in the hybrid transmission mode isanalysed. Simulation results indicate that the access of VSC-MTDC to the grid can enhance system stability, and the power output of wind farm can be ensured. When AC line is out of operation which is due to failure or maintenance, parallel converter station undertakes the entire power transmission ofwind farm, so the system stability is improved.
|
|
Published: 19 May 2015
|
|
|
|
[1] 解大, 解蕾, 张延迟, 等. 连接海上风电场的基于直接功率控制的三电平VSC-HVDC[J]. 电力系统保护与控制, 2010, 38(14): 98-103.
[2] 傅晓帆, 周克亮, 程明, 等. 风电场并网用VSC-HVDC的无差拍解耦控制策略[J]. 电工技术学报, 2009, 24(11): 157-164.
[3] 廖勇, 王国栋. 双馈风电场的柔性高压直流输电系统控制[J]. 中国电机工程学报, 2012, 32(28): 7-15.
[4] 徐坤, 赵成勇, 高本锋. VSC-HVDC的次同步阻尼特性研究[J]. 电力系统保护与控制, 2012,40(2): 1-5.
[5] 杨浩, 张楠, 叶明佳.向无源网络供电的VSC-HVDC离散模型及其控制策略[J]. 电力系统保护与控制, 2012, 40(4): 37-42.
[6] 汤广福. 基于电压源换流器的高压直流输电技术[M]. 北京: 中国电力出版社, 2009: 2-13.
[7] 李庚银, 吕鹏飞, 李广凯, 等. 轻型高压直流输电技术的发展与展望[J]. 电力系统自动化, 2007, 27(4): 77-81.
[8] 吴俊宏, 艾芊, 章健, 等. 基于多代理技术的VSC-MTDC控制系统[J]. 电力系统及其自动化, 2009, 33(19): 85-89.
[9] Flourentzou N, Agelidis V, Demetriades G. Vsc-based hvdcpower transmission systems: An overview[J]. IEEE Transactions on Power Electronics, 2009, 24(3): 592-602.
[10] 丁涛, 张承学, 孙元博. 基于本地信号的VSC- MTDC输电系统控制策略[J]. 电力系统及其自动化, 2010, 34(9): 44-48.
[11] WLu, B-T. Ooi. Premium quality power park based on multi-terminal hvdc[J]. IEEE Transactions on Power Delivery, 2005, 20(2): 978-983.
[12] 吴俊宏, 艾芊. 多端柔性直流输电系统在风电场中的应用[J]. 电网技术, 2009, 33(4): 22-27.
[13] 赵成勇, 胡冬良, 李广凯, 等. 多端VSC-HVDC用于风电场联网时的控制策略[J]. 电网技术, 2009, 33(17): 140.
[14] 赵静, 赵成勇, 孙一莹, 等. 模块化多电平直流输电联网风电场时的低电压穿越技术[J]. 电网技术, 2012, 36(0): 1-7.
[15] 范心明, 管霖, 何健明. 多电平柔性直流输电定有功功率与频率辅助控制[J]. 电网技术, 2012, 36(9): 182-186.
[16] 魏晓光, 汤广福, 魏晓云, 等. VSC-HVDC控制器抑制风电场电压波动的研究[J]. 电工技术学报, 2007, 22(4): 150-156.
[17] 朱晓东, 周克亮, 程明. 大规模近海风电场VSC- HVDC并网拓扑及其控制.电网技术, 2009, 33(18): 17-24. |
|
|
|
2015, Vol. 16 
