

浏览全部资源
扫码关注微信
西安交通大学电气工程学院,陕西省西安市 710049
Received:03 August 2023,
Revised:2023-12-19,
Published Online:06 March 2024,
Published:25 July 2024
移动端阅览
秦博宇,高鑫,张哲等.知识-数据融合的直流送端系统暂态过电压幅值预测[J].电力系统自动化,2024,48(14):110-118.
QIN Boyu,GAO Xin,ZHANG Zhe,et al.Transient Overvoltage Amplitude Prediction for DC Sending-end System Based on Knowledge-Data Fusion Model[J].Automation of Electric Power Systems,2024,48(14):110-118.
秦博宇,高鑫,张哲等.知识-数据融合的直流送端系统暂态过电压幅值预测[J].电力系统自动化,2024,48(14):110-118. DOI: 10.7500/AEPS20230803001.
QIN Boyu,GAO Xin,ZHANG Zhe,et al.Transient Overvoltage Amplitude Prediction for DC Sending-end System Based on Knowledge-Data Fusion Model[J].Automation of Electric Power Systems,2024,48(14):110-118. DOI: 10.7500/AEPS20230803001.
对于含大规模风电的高压直流外送系统,换相失败、直流闭锁等故障可能导致送端交流母线出现暂态过电压,进而引发新能源连锁脱网,严重威胁电网的安全稳定运行。为刻画直流故障对系统安全稳定运行能力的影响,提出一种知识-数据融合的直流送端系统暂态过电压幅值预测方法。首先,通过修正决策树分裂过程中的分支质量衡量指标提出改进决策树算法,挖掘暂态过电压与关键电气量的映射关系,提升过电压幅值预测模型的评估性能。其次,基于系统机理模型分析送端系统功率交换情况与交流母线电压的关联关系,推导模型驱动的换流站母线暂态过电压幅值解析表达式。最后,结合理论分析方法,建立知识-数据融合模型以快速修正过电压幅值理论计算结果,提升融合模型在训练样本不足或输入特征选择不当情况下的鲁棒性。面向存在暂态过电压问题的直流送端系统,仿真结果验证了所提暂态过电压幅值预测方法的有效性。
For the high-voltage direct current (DC) sending system containing large-scale wind power
faults such as commutation failure and DC blocking may lead to transient overvoltage on alternating current (AC) bus at the sending end
leading to the tripping risk of renewable energy units and posing a serious threat to the safe and stable operation of power grid. To characterize the impact of DC faults on the safe and stable operation ability of the system
the transient overvoltage amplitude prediction method for the DC sending-end systems based on knowledge-data fusion model is proposed. Firstly
an improved decision tree algorithm is proposed by modifying the branch quality measurement index during the decision tree splitting process. The mapping relationship between the transient overvoltage and the key electric quantities is fully explored
and the evaluation performance of the overvoltage amplitude prediction model is improved. Secondly
based on the system mechanism model
the correlation between the power exchange situation of the sending-end system and the AC bus voltage is analyzed
and the model driven analytical expression for the transient overvoltage amplitude of the converter station bus is derived. Finally
combining theoretical analysis methods
a knowledge-data fusion model is established to quickly correct the theoretical calculation results of the overvoltage amplitude and improve the robustness of the fusion model in the case of insufficient training samples or improper input feature selection. The simulation results verify the effectiveness of the proposed transient overvoltage amplitude prediction method for the DC sending-end system with transient overvoltage problem.
郭琦 , 卢远宏 . 新型电力系统的建模仿真关键技术及展望 [J]. 电力系统自动化 , 2022 , 46 ( 10 ): 18 - 32 .
GUO Qi , LU Yuanhong . Key technologies and prospects of modeling and simulation of new power system [J]. Automation of Electric Power Systems , 2022 , 46 ( 10 ): 18 - 32 .
张哲 , 秦博宇 , 高鑫 , 等 . 基于CNN-LSTM网络的电网电压稳定紧急控制策略 [J]. 电力系统自动化 , 2023 , 47 ( 11 ): 60 - 68 .
ZHANG Zhe , QIN Boyu , GAO Xin , et al . Emergency control strategy of power grid voltage stability based on convolutional neural network and long short-term memory network [J]. Automation of Electric Power Systems , 2023 , 47 ( 11 ): 60 - 68 .
XUE Y , ZHANG X P , YANG C H . Commutation failure elimination of LCC HVDC systems using thyristor-based controllable capacitors [J]. IEEE Transactions on Power Delivery , 2018 , 33 ( 3 ): 1448 - 1458 .
刘其辉 , 董楚然 , 吴勇 , 等 . 直流换相失败下双馈风电机组特性描述及暂态过电压抑制 [J]. 电力系统自动化 , 2022 , 46 ( 8 ): 29 - 38 .
LIU Qihui , DONG Churan , WU Yong , et al . Characteristic description and transient overvoltage suppression of doubly-fed wind turbines with LCC-HVDC commutation failure [J]. Automation of Electric Power Systems , 2022 , 46 ( 8 ): 29 - 38 .
张若微 , 秦博宇 , 李恒毅 , 等 . 基于干扰抑制的双馈风机低电压穿越控制策略 [J]. 电力系统自动化 , 2020 , 44 ( 20 ): 112 - 120 .
ZHANG Ruowei , QIN Boyu , LI Hengyi , et al . Low voltage ride-through control strategy for DFIG-based wind turbine based on disturbance attenuation [J]. Automation of Electric Power Systems , 2020 , 44 ( 20 ): 112 - 120 .
王熙纯 , 刘纯 , 林伟芳 , 等 . 风机故障穿越特性对大规模风电直流外送系统暂态过电压的影响及参数优化 [J]. 电网技术 , 2021 , 45 ( 12 ): 4612 - 4621 .
WANG Xichun , LIU Chun , LIN Weifang , et al . Influence of wind turbine fault ride-through characteristics on transient overvoltage of large-scale wind power DC transmission systems and parameter optimization [J]. Power System Technology , 2021 , 45 ( 12 ): 4612 - 4621 .
王春明 , 刘兵 . 区域互联多回直流换相失败对送端系统的影响 [J]. 电网技术 , 2013 , 37 ( 4 ): 1052 - 1057 .
WANG Chunming , LIU Bing . Affects of commutation failure in multi-circuit HVDC transmission system interconnecting regional power grids on AC power system at sending end [J]. Power System Technology , 2013 , 37 ( 4 ): 1052 - 1057 .
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 .
TU 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 .
冀肖彤 . 抑制HVDC送端交流暂态过电压的控制系统优化 [J]. 电网技术 , 2017 , 41 ( 3 ): 721 - 728 .
JI Xiaotong . Optimization of HVDC control system for mitigating AC transient overvoltage on rectifier station [J]. Power System Technology , 2017 , 41 ( 3 ): 721 - 728 .
屠竞哲 , 张健 , 王建明 , 等 . 大规模直流异步互联系统受端故障引发送端稳定破坏的机理分析 [J]. 中国电机工程学报 , 2015 , 35 ( 21 ): 5492 - 5499 .
TU Jingzhe , ZHANG Jian , WANG Jianming , et al . Mechanism analysis on the sending-side instability caused by the receiving-side contingencies of large-scale HVDC asynchronous interconnected power systems [J]. Proceedings of the CSEE , 2015 , 35 ( 21 ): 5492 - 5499 .
孙家豪 , 王笑雪 , 李光辉 , 等 . 换相失败引起送端电网过电压的定量计算及影响因素 [J]. 电力系统及其自动化学报 , 2020 , 32 ( 12 ): 62 - 68 .
SUN Jiahao , WANG Xiaoxue , LI Guanghui , et al . Quantitative calculation and influencing factors of overvoltage of sending-side system caused by commutation failure [J]. Proceedings of the CSU-EPSA , 2020 , 32 ( 12 ): 62 - 68 .
尹纯亚 , 李凤婷 , 周识远 , 等 . 基于无功功率短路比的直流闭锁暂态过电压计算方法 [J]. 电力系统自动化 , 2019 , 43 ( 10 ): 150 - 154 .
YIN Chunya , LI Fengting , ZHOU Shiyuan , et al . Calculation method of transient overvoltage due to DC blocking based on short circuit ratio of reactive power [J]. Automation of Electric Power Systems , 2019 , 43 ( 10 ): 150 - 154 .
张赫 . 基于控制系统动态过程和CNN的直流送端暂态过电压估算方法研究 [D]. 吉林 : 东北电力大学 , 2020 .
ZHANG He . Research on estimation method of transient overvoltage of HVDC sending-end based on control system dynamic process and convolutional neural network [D]. Jilin : Northeast Dianli University , 2020 .
ZHANG Z , QIN B Y , GAO X , et al . CNN-LSTM based power grid voltage stability emergency control coordination strategy [J]. IET Generation , Transmission & Distribution, 2023 , 17 ( 16 ): 3559 - 3570 .
姚德全 , 贾宏杰 , 赵帅 . 基于复合神经网络的电力系统暂态稳定评估和裕度预测 [J]. 电力系统自动化 , 2013 , 37 ( 20 ): 41 - 46 .
YAO Dequan , JIA Hongjie , ZHAO Shuai . Power system transient stability assessment and stability margin prediction based on compound neural network [J]. Automation of Electric Power Systems , 2013 , 37 ( 20 ): 41 - 46 .
PAN Y F , CHEN L J , LU X N , et al . Stability region of droop-controlled distributed generation in autonomous microgrids [J]. IEEE Transactions on Smart Grid , 2019 , 10 ( 2 ): 2288 - 2300 .
TANG W H , GU Y C , XIN Y L , et al . Classification for transient overvoltages in offshore wind farms based on sparse decomposition [J]. IEEE Transactions on Power Delivery , 2022 , 37 ( 3 ): 1974 - 1985 .
陈厚合 , 张赫 , 王长江 , 等 . 基于卷积神经网络的直流送端系统暂态过电压估算方法 [J]. 电网技术 , 2020 , 44 ( 8 ): 2987 - 2999 .
CHEN Houhe , ZHANG He , WANG Changjiang , et al . A method estimating transient overvoltage of HVDC sending-end system based on convolutional neural network [J]. Power System Technology , 2020 , 44 ( 8 ): 2987 - 2999 .
LI B Q , WU J Y , HAO L L , et al . Anti-jitter and refined power system transient stability assessment based on long-short term memory network [J]. IEEE Access , 2020 , 8 : 35231 - 35244 .
ZHANG J W , JIA H Y , ZHANG N . Alternate support vector machine decision trees for power systems rule extractions [J]. IEEE Transactions on Power Systems , 2023 , 38 ( 1 ): 980 - 983 .
林湘宁 , 卓毅鑫 , 李正天 , 等 . 基于风电场动态电压安全决策树体系的SVC紧急控制策略 [J]. 中国电机工程学报 , 2018 , 38 ( 1 ): 41 - 50 .
LIN Xiangning , ZHUO Yixin , LI Zhengtian , et al . Wind farm SVC emergency control strategy based on dynamic voltage security decision trees [J]. Proceedings of the CSEE , 2018 , 38 ( 1 ): 41 - 50 .
王磊 , 陈青 , 高洪雨 , 等 . 基于大数据挖掘技术的智能变电站故障追踪架构 [J]. 电力系统自动化 , 2018 , 42 ( 3 ): 84 - 91 .
WANG Lei , CHEN Qing , GAO Hongyu , et al . Framework of fault trace for smart substation based on big data mining technology [J]. Automation of Electric Power Systems , 2018 , 42 ( 3 ): 84 - 91 .
YIN C Y , LI F T . Reactive power control strategy for inhibiting transient overvoltage caused by commutation failure [J]. IEEE Transactions on Power Systems , 2021 , 36 ( 5 ): 4764 - 4777 .
杨冬锋 , 付强 , 刘晓军 , 等 . 配电网动态拓扑与线路参数联合在线辨识方法 [J]. 电力系统自动化 , 2022 , 46 ( 2 ): 101 - 108 .
YANG Dongfeng , FU Qiang , LIU Xiaojun , et al . Joint online identification method for dynamic topology and line parameters of distribution network [J]. Automation of Electric Power Systems , 2022 , 46 ( 2 ): 101 - 108 .
曹生顺 , 张文朝 , 王蒙 , 等 . 大容量直流发生功率大扰动时送端风机暂态过电压快速分析方法研究 [J]. 高电压技术 , 2017 , 43 ( 10 ): 3300 - 3306 .
CAO Shengshun , ZHANG Wenchao , WANG Meng , et al . Study on fast analysis method transient fundamental frequency overvoltage of wind turbine generators in sending system when serious power disturbances occur in large-capacity UHVDC [J]. High Voltage Engineering , 2017 , 43 ( 10 ): 3300 - 3306 .
0
Views
0
下载量
3
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
京公网安备11010802024621