洪金琪,徐雄,俞永军,蔡重凯,葛昆明,王滔,于建飞,王广柱
HONG Jinqi,XU Xiong,YU Yongjun,CAI Chongkai,GE Kunming,WANG Tao,YU Jianfei,WANG Guangzhu

• 1:国网浙江省电力有限公司绍兴供电公司
• 2:山东大学电气工程学院

摘要(Abstract)：

多种DFACTS(分布式柔性交流输电)装置的联合运行,可有效解决配电网中存在的各种电能质量问题。但与此同时,各设备在运行中若不加以协调控制,不仅会影响电能质量治理效果,甚至可能由于设备间的相互作用而加剧电能质量问题,因此需要对配电网中的DFACTS设备进行协调控制。对此,提出一种适用于多电压等级配电网多种电能质量治理设备的协调控制策略,该策略主要包括两方面:一是基于电压跌落程度划分跌落等级,协调控制UPQC(统一电能质量调节器)、 SSTS(固态切换开关)和DSTATCOM(配电网静止同步补偿器)以解决不同等级的电压跌落问题;另一方面,协调控制以上设备补偿配电网中的谐波、无功和负序电流,进而解决配电网中存在的负载三相不平衡、无功补偿和谐波等问题。最后,以装设以上DFACTS设备的双路电源馈线配电网典型拓扑结构为例,基于MATLAB/Simulink仿真平台验证了该策略的可行性和有效性。
Combined operation of DFACTS(distributed flexible AC transmission system) devices can solve various power quality problems in the distribution networks. However, the devices, without coordinated control during the operation, may affect power quality management or even aggravate the problems due to their interaction. Therefore, coordinated control of DFACTS devices in distribution networks is required. This paper proposes a coordinated control strategy applicable to multiple power quality control devices for distribution networks with multiple voltage levels. The strategy comprises two aspects: on the one hand, the voltage sag levels are divided based on the voltage sag degree, and coordinated control of UPQC(unified power quality control), SSTS(solid-state transfer switch) and D-STATCOM(distribution static compensator) to solve voltage sag of different levels; on the other hand, coordinated control of the devices was implemented to compensate the harmonic, reactive power and negative sequence current in the distribution network to solve the three-phase load imbalance, reactive power compensation and harmonic in the distribution network. Finally,the paper takes the typical topology structure of a dual-channel power feeder distribution network equipped with the above DFACTS devices as an example to verify the feasibility and effectiveness of the proposed strategy by a simulation platform based on MATLAB/Simulink.

关键词(KeyWords)： 配电网;电能质量;DFACTS;UPQC;协调控制
distribution network;power quality;DFACTS;UPQC;coordinated control

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司项目资助（5211SX800AY）

作者(Author): 洪金琪,徐雄,俞永军,蔡重凯,葛昆明,王滔,于建飞,王广柱
HONG Jinqi,XU Xiong,YU Yongjun,CAI Chongkai,GE Kunming,WANG Tao,YU Jianfei,WANG Guangzhu

DOI: 10.19585/j.zjdl.202106005

参考文献(References)：

• [1]张文亮，周孝信，印永华，等.华北-华中-华东特高压同步电网构建和安全性分析[J].中国电机工程学报，2010,30(16):1-5.
• [2]张文亮，刘壮志，王明俊，等.智能电网的研究进展及发展趋势[J].电网技术，2009,33(13):1-11.
• [3]WU N,CHEN B.Research on DFACTS configuration and coordinated control in premium power park[C]//The 3rd International Conference on Intelligent Energy and Power Systems(IEPS 2017).[S.l.]:Clausius Scientific Press Inc.,2017:58-64.
• [4]王兆安，杨君，刘进军.谐波抑制和无功功率补偿[M].2版.北京：机械工业出版社，2006.
• [5]谭真，罗隆福，崔贵平，等.耦合可控电抗器的统一电能质量控制器[J].电力自动化设备，2020,40(1):101-105.
• [6]王兆安，刘进军．电力电子技术[M].5版.北京：机械工业出版社，2008．
• [7]QASIM M,KHADKIKAR V.Application of artificial neural networks for shunt active power filter control[J].IEEETransactions on Industrial Informatics,2014,10(3):1765-1774.
• [8]DANG P P,ELLINGER T,PETZOLDT J.Dynamic inter action analysis of APF systems[J].IEEE Transactions on Industrial Electronics,2014,61(9):4467-4473.
• [9]高聪哲，姜新建，李永东.基于级联有源滤波器与静止无功补偿器的综合补偿控制方案[J].电力系统自动化，2012,36(7):92-98.
• [10]霍群海，韩立博，韦统振，等.D-FACTS装置交互影响分析及协调控制研究[J].电工技术学报，2015,30（增刊1):329-336.
• [11]梁营玉，刘建政，许杏桃，等.优质电力园区多DFACTS设备协调控制策略[J].电测与仪表，2015,52(24):65-73.
• [12]徐箭，袁志昌，汪龙龙，等.参与AVC调节的STATCOM电压控制策略设计与仿真[J].电力自动化设备，2015,35(10):115-120.
• [13]邓礼宽，姜新建，朱东起，等.APF和SVC联合运行的稳定控制[J].电力系统自动化，2005,29(18):29-32.
• [14]章勇高，康勇，刘黎明，等.静止同步补偿器的双环控制系统设计[J].电力自动化设备，2006,26(10):62-66.
• [15]MAHARJAN L,INOUE S,AKAGI H.A transformerless energy storage system based on a cascade multilevel PWMconverter with star configuration[J].IEEE Transactions on Industry Applications,2008,44(5):1621-1630.
• [16]YANG X W,JIANG J G,LIU S C.A novel design approach of dc voltage balancing controller for cascaded H-bridge converter-based STATCOM[C]//2009 IEEE 6th International Power Electronics and Motion Control Conference.Wuhan,China:IEEE,2009:2359-2364.
• [17]崔晓飞，陆国俊，薛军霞，等.链式STATCOM直流电容电压均衡控制策略[J].电力系统及其自动化学报，2015,27(1):92-97.
• [18]王久和，孙凯，张巧杰.统一电能质量调节器及其无源控制[M].北京：机械工业出版社，2018.
• [19]李丹丹，闫桂红，黄伟.500 kV布乌Ⅰ线不带高抗充电及运行电压控制仿真分析[J].内蒙古电力技术，2019,37(3):33-36.
• [20]冯传水，隋安军.地区电网220 kV母线自动电压控制策略及其应用[J].内蒙古电力技术，2018,36(1):27-31.
• [21]赵卫国.多能交互系统关键节点电能质量改善措施[J].山西电力，2018(4):14-18.
• [22]王宇飞，徐琳.地铁牵引供电系统接入对电网电能质量影响分析[J].四川电力技术，2019(1):33-36.