基于场路耦合模型与改进差分进化算法的电容隔直装置多目标优化配置

doi:10.11930/j.issn.1004-9649.201912188

摘要/Abstract

摘要： 针对隔直装置运行特点，在变压器安装电容隔直装置后对邻近变压器中性点直流电流影响进行分析，提出一种基于场路耦合模型和改进差分进化算法的电容隔直装置多目标优化配置方法，建立变压器等效模型及土壤分层模型，将二者结合形成等效的场路耦合模型，利用有限元法求解各变压器中性点的直流电流。在保证每台变压器中性点直流均低于限值的条件下，以投入装置数量最少和全网变压器中性点直流总量最小为目标函数，建立优化配置模型。通过直流输电工程的仿真算例验证所提方法的有效性和优越性，抑制了直流偏磁现象并节约成本。

关键词: 场路耦合模型, 改进差分进化算法, 多目标

Abstract: Based on the operating characteristics of the DC blocking devices, this paper analyzes the influence of the DC blocking devices on the DC current near the neutral point of the transformers, and proposes a multi-objective optimization configuration method for capacitor blocking devices based on the field-circuit coupling model and improved differential evolution algorithm. Firstly, a transformer equivalent model and a soil layering model are established respectively. And then, the two models are combined into an equivalent field-circuit coupling model. The finite element method is adopted to solve the DC current at the neutral point of each transformer. Under the condition that the DC current at the neutral point of each transformer is lower than the limit, an optimal configuration model is established with the minimum number of installed devices and the minimum total DC at neutral points of the entire transformers as the objective function. Finally, the effectiveness and superiority of the proposed method is validated through simulation study of a DC transmission project, which shows that the configuration scheme of DC blocking devices obtained with this method can effectively suppress the phenomenon of DC bias and save costs.

Key words: field-circuit coupling model, improved differential evolution algorithm, multi-objective

刘宏伟. 基于场路耦合模型与改进差分进化算法的电容隔直装置多目标优化配置[J]. 中国电力, 2020, 53(8): 100-106.

LIU Hongwei. Multi-objective Optimization Configuration of Capacitor Blocking Devices Based on Field-Circuit Coupled Model and Improved Differential Evolution Algorithm[J]. Electric Power, 2020, 53(8): 100-106.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.201912188

https://www.electricpower.com.cn/CN/Y2020/V53/I8/100

参考文献

[1] 陈志伟, 白保东, 陈德志, 等. 电力变压器直流偏磁现象形成机理及一种抑制措施的研究[J]. 电工技术学报, 2015, 30(14): 208-214
CHEN Zhiwei, BAI Baodong, CHEN Dezhi, et al. Research on the formation mechanism and suppression method of transformer DC bias[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 208-214
[2] 刘鹏, 郭倩雯, 杨铭, 等. 抗直流偏磁的变压器中性点接地方式探讨[J]. 高电压技术, 2015, 41(3): 794-799
LIU Peng, GUO Qianwen, YANG Ming, et al. Discussion about neutral point connection mode of transformer to inhibit DC bias[J]. High Voltage Engineering, 2015, 41(3): 794-799
[3] 王婷, 张侃君, 文博, 等. 大型变压器中性点串接抑制直流电流电容后对继电保护影响分析[J]. 中国电力, 2017, 50(7): 164-168, 174
WANG Ting, ZHANG Kanjun, WEN Bo, et al. Analysis of DC bias suppression method of the large transformer's neutral series capacitor and its effect on relay protection[J]. Electric Power, 2017, 50(7): 164-168, 174
[4] 赵小军, 李琳, 程志光, 等. 基于直流偏磁实验的叠片铁心磁化特性分析[J]. 电工技术学报, 2011, 26(1): 7-13
ZHAO Xiaojun, LI Lin, CHENG Zhiguang, et al. Analysis of magnetizing characteristic of laminated core based on the DC-biasing experiment[J]. Transactions of China Electrotechnical Society, 2011, 26(1): 7-13
[5] 鲁海亮, 文习山, 蓝磊, 等. 变压器直流偏磁对无功补偿电容器的影响[J]. 高电压技术, 2010, 36(5): 1124-1130
LU Hailiang, WEN Xishan, LAN Lei, et al. Impact of transformer DC bias on reactive compensation capacitor[J]. High Voltage Engineering, 2010, 36(5): 1124-1130
[6] 李贞, 李庆民, 李长云, 等. 直流偏磁条件下变压器的谐波畸变特征[J]. 电力系统保护与控制, 2010, 38(24): 52-55
LI Zhen, LI Qingmin, LI Changyun, et al. Harmonic distortion feature of AC transformers caused by DC bias[J]. Power System Protection and Control, 2010, 38(24): 52-55
[7] 朱林, 韦晨, 余洋. 单相变压器的直流偏磁励磁电流问题及其对保护的影响分析[J]. 电力系统保护与控制, 2010, 38(24): 158-162
ZHU Lin, WEI Chen, YU Yang. Analysis of DC bias exciting current of the single-phase transformer and its effect on protection[J]. Power System Protection and Control, 2010, 38(24): 158-162
[8] 国网电力科学研究院. 高压直流接地极技术导则: DL/T437-2012[S]. 北京: 电力标准(DL), 2012.
[9] 王振浩, 佟昕, 齐伟夫. 电容隔直可控开断桥法抑制变压器直流偏磁[J]. 电工技术学报, 2013, 28(10): 120-126
WANG Zhenhao, TONG Xin, QI Weifu. Blocking DC capacitor controllable opening and broken bridge suppression in transformer DC magnetic bias[J]. Transactions of China Electrotechnical Society, 2013, 28(10): 120-126
[10] 肖本旺, 王渝红, 欧林, 等. 直流偏磁抑制措施研究综述[J]. 高压电器, 2015, 51(10): 209-216
XIAO Benwang, WANG Yuhong, OU Lin, et al. Reviews of the restraining measures of DC bias[J]. High Voltage Apparatus, 2015, 51(10): 209-216
[11] 张露, 阮羚, 潘卓洪, 等. 变压器直流偏磁抑制设备的应用分析[J]. 电力自动化设备, 2013, 33(9): 151-156
ZHANG Lu, RUAN Ling, PAN Zhuohong, et al. Evaluation of DC bias restraint equipment application[J]. Electric Power Automation Equipment, 2013, 33(9): 151-156
[12] 谢志成, 林湘宁, 李正天, 等. 基于隔直装置全局优化投切的直流偏磁治理方法[J]. 中国电机工程学报, 2017, 37(24): 7133-7142, 7427
XIE Zhicheng, LIN Xiangning, LI Zhengtian, et al. Suppression method for DC bias based on global optimal switching method of blocking devices[J]. Proceedings of the CSEE, 2017, 37(24): 7133-7142, 7427
[13] 刘春明, 黄彩臣, 林晨翔. 抑制变压器地磁感应电流的电容隔直装置安装位置优化[J]. 电力系统自动化, 2016, 40(16): 132-137
LIU Chunming, HUANG Caichen, LIN Chenxiang. Installation position optimization of capacitor DC blocking devices for suppressing geomagnetically induced currents in transformers[J]. Automation of Electric Power Systems, 2016, 40(16): 132-137
[14] 夏成军, 谢应耿, 李猛, 等. 变压器中性点电容型隔直装置的优化配置[J]. 华南理工大学学报(自然科学版), 2016, 44(8): 68-73
XIA Chengjun, XIE Yinggeng, LI Meng, et al. Optimal configuration of capacitor-type blocking device at neutral point of transformer[J]. Journal of South China University of Technology(Natural Science Edition), 2016, 44(8): 68-73
[15] ZHU H, OVERBYE T. Blocking device placement for mitigating the effects of geomagnetically induced currents[C]//2016 IEEE Power and Energy Society General Meeting (PESGM). Boston, 2016: 17-21.
[16] 阮羚, 文习山, 康钧, 等. 考虑深层大地电阻率的交流系统直流网络模型[J]. 电网技术, 2014, 38(10): 2888-2893
RUAN Ling, WEN Xishan, KANG Jun, et al. DC network modeling of AC power grid considering deep layer earth resistivity[J]. Power System Technology, 2014, 38(10): 2888-2893
[17] 潘卓洪, 张露, 刘虎, 等. 多层水平土壤地表电位分布的仿真分析[J]. 高电压技术, 2012, 38(1): 116-123
PAN Zhuohong, ZHANG Lu, LIU Hu, et al. Simulation and analysis of earth surface potential distribution in horizontal multi-layer soil[J]. High Voltage Engineering, 2012, 38(1): 116-123
[18] 阮羚, 徐碧川, 全江涛, 等. 用于土壤分层电阻率模型反演的人工蜂群结合混沌搜索算子及混沌算法[J]. 高电压技术, 2015, 41(1): 42-48
RUAN Ling, XU Bichuan, QUAN Jiangtao, et al. Artificial colony algorithm combined with chaotic search operator and chaotic pool used for resistivity model inversion of layered soil[J]. High Voltage Engineering, 2015, 41(1): 42-48
[19] 曹楠, 王天正, 王冬青, 等. 变压器直流偏磁治理站点选择优化研究[J]. 电力系统保护与控制, 2017, 45(10): 117-122
CAO Nan, WANG Tianzheng, WANG Dongqing, et al. Study on configuration optimization method of transformer magnetic bias treatment[J]. Power System Protection and Control, 2017, 45(10): 117-122
[20] 樊艳芳, 耿山, 巩晓玲, 等. 基于直流偏磁风险指标的变电站选址[J]. 电力系统保护与控制, 2018, 46(19): 59-65
FAN Yanfang, GENG Shan, GONG Xiaoling, et al. Substation site selection considering the risk index of DC bias[J]. Power System Protection and Control, 2018, 46(19): 59-65