王开科,南东亮,于永军,孙帆,王廷旺,周杰
WANG Kaike,NAN Dongliang,YU Yongjun,SUN Fan,WANG Tingwang,ZHOU Jie

• 1:国网新疆电力有限公司电力科学研究院

摘要(Abstract)：

为了增加风电并网的稳定性,提出了风火打捆直流外送的方案。当风电功率波动剧烈时,可以利用火电出力减弱风电功率波动带来的不利影响,保证电力输入至受端电网时的电压稳定。然而当受端电力系统出现故障时,需要无功装置维持受端电网稳定性。UPFC作为功能全面的无功补偿器件之一,既可以控制潮流,还可以在故障时候提供无功补偿,提高系统稳定性。在DIg SILENT软件中搭建了在受端配置UPFC的风火打捆电网模型,研究了不同工况下系统送、受两端的电压与功率特性。仿真结果证明了所建立系统的可行性及控制方案的有效性。
To effectively improve grid-connected operation stability of wind farm, the structure of wind-thermal bundled power transmitted by DC system is proposed. In the case of wind power fluctuations, thermal power output can be used to mitigate the influence of wind power to ensure voltage stability at the receiving end. When fault occurs at the receiving-end grid, reactive compensation equipment must be added to maintain the stability of the grid. Unified power flow controller(UPFC), as a multi-purpose reactive power compensation equipment, can not only control power flow but also provide reactive power compensation and improve the system stability. The model of UPFC with wind-thermal bundled system is established in DIg SILENT software, and voltage and power characteristics of sending and receiving ends under different operating conditions are investigated. The simulation results demonstrate the feasibility of the proposed system and the effectiveness of the control strategies.

关键词(KeyWords)： 风火打捆;无功补偿;UPFC;并网稳定性
wind-thermal bundled power system;reactive power compensation;unified power flow controller;integration stability

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王开科,南东亮,于永军,孙帆,王廷旺,周杰
WANG Kaike,NAN Dongliang,YU Yongjun,SUN Fan,WANG Tingwang,ZHOU Jie

DOI: 10.19585/j.zjdl.201808007

参考文献(References)：

• [1]陈树勇,逄博,陈德治,等.新疆电网多送出直流输电系统运行特性分析[J].中国电力,2014,47(4):102-107.
• [2]卓谷颖,黄晓明,楼伯良,等.直流建模对静态电压稳定分析的影响[J].浙江电力,2016,35(6):6-10.
• [3]胡仁祥,徐立亮,王明慧,等.含大量风电场的地区电网孤网后稳定控制策略分析[J].四川电力技术,2016,39(3):17-20.
• [4]周健,王苏,郑彧,等.风电联网协调调度策略研究[J].浙江电力,2016,35(8):18-21.
• [5]张运洲,胡泊.“三北”地区风电开发、输送及消纳研究[J].中国电力,2012,45(9):1-6.
• [6]王青,杨悦,汪宁渤,等.风电与火电“打捆”外送系统频率调控策略研究[J].中国电力,2014(3):6-13.
• [7]耿烺,潘庆,华宇肖,等.考虑风功率特性的双馈风机无功补偿容量计算[J].浙江电力,2017,36(11):61-66.
• [8]陈坚.柔性电力系统中的电力电子技术[M].北京:机械工业出版社,2012.
• [9]SENTHIL K N,GOKULA K J.Impact of FACTS controllers on the stability of power systems connected with doubly fed induction generators[J].International Journal of Electrical Power&Energy Systems,2011,33(5):1172-1184.
• [10]时光,王海云,唐新安,等.基于SVS与STATCOM协同无功补偿系统提高风电场暂态特性研究[J].电测与仪表,2015,52(2):112-116.
• [11]肖本旺,王渝红,李兴源,等.基于UPFC的双馈风电场动态稳定性改善仿真[J].电测与仪表,2015,52(23):6-10.
• [12]曹喜民,刘天琪,李兴源.风火电打捆输电系统风火电配置比例研究[J].东北大学学报(自然科学版),2015,36(2):166-170.
• [13]钱锋,王永,胡剑锋,等.基于PSS/E的统一潮流控制器仿真建模[J].广东电力,2017,30(11):61-66.
• [14]李鹏,林金娇,孔祥平.统一潮流控制器在苏南500 k V电网中的应用[J].电力工程技术,2017,36(1):20-24.
• [15]汪惟源,窦飞,杨林,等.UPFC在江苏电网中的应用与控制效果[J].电网与清洁能源,2016,32(3):92-97.
• [16]宋鹏程,王莹,许文超,等.含UPFC的电力系统潮流计算方法研究[J].江苏电机工程,2016,35(1):24-27.