多微源配电线路对等控制策略研究
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摘要
在含多微源的配电线路系统中,对等控制是使各微源有效协调、系统安全稳定运行的控制策略之一。在对等控制策略中,各微源均采用下垂控制方法。针对传统的下垂控制存在输出阻抗性质与配电线路不符和线路阻抗不平衡影响功率合理分配的问题,提出引入了线路阻抗压降补偿反馈的反下垂控制方法。在PSCAD/EMTDC平台上搭建含有六个具体微源的配电线路系统进行多种工况的仿真分析,仿真结果验证了所提控制方法的正确性并反映了对等控制策略在孤岛/并网模式下的运行机制及其特点。
In a distribution line system with multiple micro sources,peer to peer control is one of the control strategies to make the micro source coordinate effectively and the system run safely and stably. In the peer to peer control strategy,the droop control method is adopted for each micro source. In view of the traditional droop control of output impedance properties and distribution lines do not accord with the line impedance unbalances reasonable distribution of influence power,introduced a method to control the line anti sagging impedance voltage drop compensation feedback. Simulation analysis of distribution line system containing six specific micro sources built on the PSCAD/EMTDC platform for a variety of conditions,the simulation results verify the correctness of the proposed control method and the equivalent control strategy in grid connected mode/island operation mechanism and its characteristics.
In a distribution line system with multiple micro sources,peer to peer control is one of the control strategies to make the micro source coordinate effectively and the system run safely and stably. In the peer to peer control strategy,the droop control method is adopted for each micro source. In view of the traditional droop control of output impedance properties and distribution lines do not accord with the line impedance unbalances reasonable distribution of influence power,introduced a method to control the line anti sagging impedance voltage drop compensation feedback. Simulation analysis of distribution line system containing six specific micro sources built on the PSCAD/EMTDC platform for a variety of conditions,the simulation results verify the correctness of the proposed control method and the equivalent control strategy in grid connected mode/island operation mechanism and its characteristics.
引文
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[16]殷若鹏,尤冬石,刘亚龙.基于电磁耦合补偿反馈抑制的无刷直流电机控制仿真[J].智能计算机与应用,2016,6(3):74-77.YIN Ruopeng,YOU Dongshi,LIU Yalong.Control simu-lation of Brushless DC motor based on electromagneticcoupling compensation feedback suppression[J].Intelli-gent computers and Applications,2016,6(3):74-77.
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[18]李琴.基于嵌入式技术的小型恒压控制系统的设计与实现[J].现代电子技术,2017(8):578-582.LI Qin.Design and implementation of small constant volt-age control system based on Embedded Technology[J].Modern electronic technology,2017(8):578-582.
[2]郭谋发,刘世丹,杨耿杰.利用时频谱相似度识别的配电线路接地选线方法[J].中国电机工程学报,2013,33(19):183-190.GUO Moufa,LIU Shidan,YANG Genjie.Method forgrounding line selection of distribution line based on spec-trum similarity identification[J].Chinese Journal of Elec-trical Engineering,2013,33(19):183-190.
[3]罗大强,唐军,许志荣.10kV架空配电线路防雷措施配置方案分析[J].电瓷避雷器,2012(5):113-118.LUO Daqiang,TANG Jun,XU Zhirong.Analysis of config-uration measures for lightning protection measures of10k V overhead distribution lines[J].Insulators and SurgeArresters,2012(5):113-118.
[4]张鑫,牟龙华.配电线路暂态保护故障行波特征的研究[J].电力系统保护与控制,2013(12):1-8.ZHANG Xin,MOU Longhua.Study on characteristics offault traveling wave for transient protection of distributionline[J].Power system protection and control,2013(12):1-8.
[5]毛金枝,杨俊华,陈思哲.基于对等控制策略的微电网运行[J].电测与仪表,2014,24(51):11-17.MAO Jinzhi,YANG Junhua,CHEN Sizhe.Microgrid oper-ation based on peer to peer control strategy[J].Electricalmeasurement and instrumentation,2014,24(51):11-17.
[6]罗永捷,李耀华,王平.多端柔性直流输电系统下垂控制P-V特性曲线时域分析[J].电工技术学报,2014,29(1):408-415.LUO Yongjie,LI Yaohua,WANG Ping.Multi terminalflexible DC transmission system,droop control,P-V char-acteristic curve,time domain analysis[J].Transactions ofChina Electrotechnical Society,2014,29(1):408-415.
[7]姜晓平,朱奕,伞冶.大功率随动试验台多永磁同步电机同步控制[J].电机与控制学报,2014,18(4):88-95.JIANG Xiaoping,ZHU Yi,SAN Ye.High power synchro-nous servo control of permanent magnet synchronous mo-tor test bench[J].Journal of electrical engineering andcontrol,2014,18(4):88-95.
[8]燕颖,潘庭龙.含多微源的微网并网优化运行研究[J].电子设计工程,2016,24(7):13-16.YAN Ying,PAN Tinglong.Optimal operation of microgridconnected with multiple micro sources[J].Electronic de-sign engineering,2016,24(7):13-16.
[9]许吉强,卢闻州,吴雷.低压微电网逆变器并离网平滑切换控制[J].科学技术与工程,2017(9):36-44.XU Jiqiang,LU Wenzhou,WU Lei.Off grid smoothingswitching control for low voltage microgrid Inverters[J].Science,technology and Engineering,2017(9):36-44.
[10]张靠社,亓婷.微电网中并列运行逆变器控制策略研究[J].电网与清洁能源,2012,28(10):74-77.ZHANG Kaoshe,BIAN Ting.Research on control strate-gy of parallel inverters in microgrid[J].Power grids andclean energy,2012,28(10):74-77.
[11]潘庭龙,万红淑,纪志成.基于改进下垂控制的微网孤岛运行研究[J].控制工程,2014,21(4):496-500.PAN Tinglong,WAN Hongshu,JI Zhicheng.Study on is-landing operation of microgrid based on improved droopcontrol[J].Control engineering,2014,21(4):496-500.
[12]张勤进,刘彦呈,王川.微源逆变器多模式运行协调控制策略研究[J].电机与控制学报,2017,21(2):35-44.ZHANG Qinjin,LIU Yancheng,WANG Chuan.Multimode coordinated control strategy for micro source invert-ers[J].Journal of electrical engineering and control,2017,21(2):35-44.
[13]郭磊,张英敏,李兴源.基于三自由度内模解耦控制的VSC-MTDC性能分析[J].电测与仪表,2015,52(16):54-60.GUO Lei,ZHANG Yingmin,LI Xingyuan.Performanceanalysis of VSC-MTDC based on three degrees of free-dom internal model decoupling control[J].Electricalmeasurement and instrumentation,2015,52(16):54-60.
[14]张国荣,谢洁.用于微网逆变器并联的控制策略[J].电测与仪表,2014(12):60-64.ZHANG Guorong,XIE Jie.Control strategy for parallelinverters in microgrid[J].Electrical measurement and in-strumentation,2014(12):60-64.
[15]王莹莹,梅生伟,刘锋.混合电力系统合作博弈规划的分配策略研究[J].系统科学与数学,2012,32(4):418-428.WANG Yingying,MEI Shengwei,LIU Feng.Allocationstrategy of cooperative game planning for hybrid powersystem[J].Systems Science and Mathematics,2012,32(4):418-428.
[16]殷若鹏,尤冬石,刘亚龙.基于电磁耦合补偿反馈抑制的无刷直流电机控制仿真[J].智能计算机与应用,2016,6(3):74-77.YIN Ruopeng,YOU Dongshi,LIU Yalong.Control simu-lation of Brushless DC motor based on electromagneticcoupling compensation feedback suppression[J].Intelli-gent computers and Applications,2016,6(3):74-77.
[17]安云鹏,刘金宁,赵锦成.基于改进电导增量法MPPT控制仿真研究[J].电子技术应用,2015,41(3):130-132.AN Yunpeng,LIU Jinning,ZHAO Jincheng.SimulationResearch of MPPT control based on improved conduc-tance increment method[J].Application of electronictechnology,2015,41(3):130-132.
[18]李琴.基于嵌入式技术的小型恒压控制系统的设计与实现[J].现代电子技术,2017(8):578-582.LI Qin.Design and implementation of small constant volt-age control system based on Embedded Technology[J].Modern electronic technology,2017(8):578-582.