10 kV数字物理混合仿真扰动试验系统设计
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摘要
传统电能质量扰动试验系统不能直观反应实际电网扰动,也不能用于测试实际电网扰动下并网设备的运行特性。对此提出一种10 kV/3 MVA数字物理混合仿真扰动试验系统设计方法。该方法能够在实验室环境下实现电力系统运行模拟,可用于电网故障下并网设备的特性研究;同时本扰动试验系统也能模拟基于波形特征描述的电能质量问题。提出了数字物理混合扰动试验系统的总体框架,功率接口为级联H桥式背靠背拓扑,在逆变侧采用比例+重复控制模拟数字侧仿真波形,仿真结果证明所提出的设计方案的可行性。
The traditional power quality disturbance test system can neither directly reflect the actual power grid disturbance, nor can be used to test the operation characteristics of grid-connected equipment in the case of the actual grid disturbance. In this paper, a design method of 10 kV/3 MVA digital-physical hybrid simulation disturbance test system is proposed, which can be used to simulate the operation of power system in laboratory environment and study the characteristics of grid-connected equipment under grid fault. At the same time, the disturbance test system can also simulate the power quality problem based on waveform feature description. In this paper, the general framework of the digital-physical hybrid disturbance test system is presented. The power interface is a cascaded H-bridge back-to-back topology. To analogize digital side simulation waveform output, the inverter is controlled by proportional control and repetitive control in output sides. The simulation results show the feasibility of the proposed design scheme.
The traditional power quality disturbance test system can neither directly reflect the actual power grid disturbance, nor can be used to test the operation characteristics of grid-connected equipment in the case of the actual grid disturbance. In this paper, a design method of 10 kV/3 MVA digital-physical hybrid simulation disturbance test system is proposed, which can be used to simulate the operation of power system in laboratory environment and study the characteristics of grid-connected equipment under grid fault. At the same time, the disturbance test system can also simulate the power quality problem based on waveform feature description. In this paper, the general framework of the digital-physical hybrid disturbance test system is presented. The power interface is a cascaded H-bridge back-to-back topology. To analogize digital side simulation waveform output, the inverter is controlled by proportional control and repetitive control in output sides. The simulation results show the feasibility of the proposed design scheme.
引文
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[20]杨晓峰,郑琼林,薛尧,等.模块化多电平换流器的拓扑和工业应用综述[J].电网技术,2016,40(1):1-10.YANG Xiaofeng,ZHENG Qionglin,XUE Yao,et al.The topology and industrial application of modular multilevel converter[J].Power System Technology,2016,40(1):1-10.
[2]梁双,胡学浩,张东霞,等.光伏发电置信容量的研究现状与发展趋势[J].电力系统自动化,2011,35(19):101-107.LIANG Shuang,HU Xuehao,ZHANG Dongxia,et al.Research status and development trend of photovoltaic confidence capacity[J].Automation of Electric Power Systems,2011,35(19):101-107.
[3]陈炜,艾欣,吴涛,等.光伏并网发电系统对电网的影响研究综述[J].电力自动化设备,2013,33(2):26-32,39.CHEN Wei,AI Xin,WU Tao,et al.Review on the influence of PV grid-connected generation system on power grid[J].Electric Power Automation Equipment,2013,33(2):26-32,39.
[4]李升,姜程程,赵之瑜,等.分布式光伏电站接入低压配电网系统暂态电压稳定性研究[J].电力系统保护与控制,2017,45(8):67-72.LI Sheng,JIANG Chengcheng,ZHAO Zhiyu,et al.Study on transient voltage stability of distributed photovoltaic power plant connected to low voltage distribution network system[J].Power System Protection and Control,2017,45(8):67-72.
[5]段庆,孙云莲,张笑迪,等.电动汽车充电桩选址定容方法[J].电力系统保护与控制,2017,45(12):88-93.DUAN Qing,SUN Yunlian,ZHANG Xiaodi,et al.Method for selecting and filling capacity of electric vehicle charging piles[J].Power System Protection and Control,2017,45(12):88-93.
[6]黄巍,吴俊勇,鲁思棋,等.电压偏差和谐波约束下配网光伏最大渗透率评估[J].电力系统保护与控制,2016,44(6):49-55.HUANG Wei,WU Junyong,LU Siqi,et al.Evaluation of maximum photovoltaic permeability of distribution network under voltage deviation and harmonic constraints[J].Power System Protection and Control,2016,44(6):49-55.
[7]周娟,任国影,魏琛,等.电动汽车交流充电桩谐波分析及谐波抑制研究[J].电力系统保护与控制,2017,45(5):18-25.ZHOU Juan,REN Guoying,WEI Chen,et al.Harmonic analysis and harmonic suppression of electric vehicle ACcharging pile[J].Power System Protection and Control,2017,45(5):18-25.
[8]戴喜良,李尚盛,孙建军,等.基于DSP与FPGA实现级联型谐波发生器的研究[J].电力电子技术,2014,48(4):58-61.DAI Xiliang,LI Shangsheng,SUN Jianjun,et al.The research of cascaded harmonic generator based on DSPand FPGA[J].Power Electronics,2014,48(4):58-61.
[9]赵波,郭剑波,周飞,等.新型多功能10kV电压扰动发生器的设计[J].电网技术,2010,34(7):75-80.ZHAO Bo,GUO Jianbo,ZHOU Fei,et al.Design of a novel multifunctional 10kV voltage disturbance generator[J].Power System Technology,2010,34(7):75-80.
[10]戴喜良,李尚盛,孙建军,等.电能质量扰动发生器控制策略及其实现[J].电力系统保护与控制,2014,42(23):131-137.DAI Xiliang,LI Shangsheng,SUN Jianjun,et al.Control strategy and implementation of power quality disturbance generator[J].Power System Protection and Control,2014,42(23):131-137.
[11]杨小品,查晓明,李尚盛,等.基于RTDS的APF硬件在环仿真系统[J].电力自动化设备,2010,30(11):65-69.YANG Xiaopin,ZHA Xiaoming,LI Shangsheng,et al.APF hardware-in-the-loop simulation system based on RTDS[J].Electric Power Automation Equipment,2010,30(11):65-69.
[12]曾杰,冷凤,陈晓科,等.现代电力系统大功率数模混合实时仿真实现[J].电力系统自动化,2017,41(8):166-171,178.ZENG Jie,LENG Feng,CHEN Xiaoke,et al.Realization of high power digital-analog hybrid real time simulation in modern power system[J].Automation of Electric Power Systems,2017,41(8):166-171,178.
[13]WU X,LENTIJO S,DESHMUK A,et al.Design and implementation of a power-hardware-in-the-loop interface:a nonlinear load case study[C]//Applied Power Electronics Conference and Exposition,March 6-10,2005,Austin,TX,USA:1332-1338.
[14]李国庆,江守其,辛业春,等.柔性高压直流输电系统数字物理混合仿真功率接口及其算法[J].中国电机工程学报,2016,36(7):1915-1924.LI Guoqing,JIANG Shouqi,XIN Yechun,et al.Digitalphysical hybrid simulation power interface and its algorithm for flexible HVDC transmission system[J].Proceedings of the CSEE,2016,36(7):1915-1924.
[15]辛业春,江守其,李国庆,等.电力系统数字物理混合仿真接口算法综述[J].电力系统自动化,2016,40(15):159-167.XIN Yechun,JIANG Shouqi,LI Guoqing,et al.An overview of digital-physical hybrid simulation interface algorithms for power system[J].Automation of Electric Power Systems,2016,40(15):159-167.
[16]莫染.电力系统数字物理综合仿真接口方法[D].武汉:华中科技大学,2013.MO Ran.Interface method for power system digital physics synthesis simulation[D].Wuhan:Huazhong University of Science and Technology,2013.
[17]胡昱宙,张沛超,方陈,等.功率连接型数字物理混合仿真系统(一)接口算法特性[J].电力系统自动化,2013,37(7):36-41.HU Yuzhou,ZHANG Peichao,FANG Chen,et al.Power connected digital-physical hybrid simulation system(1)interface algorithm characteristic[J].Automation of Electric Power Systems,2013,37(7):36-41.
[18]洪峰,刘苗,嵇保健,等.一种飞跨电容型多电平逆变器电容建压方法[J].中国电机工程学报,2012,32(6):17-23.HONG Feng,LIU Miao,JI Baojian,et al.A capacitive voltage building method for flying transcapacitor multilevel inverter[J].Proceedings of the CSEE,2012,32(6):17-23.
[19]佘致廷,曹达,彭永进.二极管箝位五电平变换器控制方法[J].电力自动化设备,2011,31(4):47-49,54.SHE Zhiting,CAO Da,PENG Yongjin.Control method of Diode clamped five level converter[J].Electric Power Automation Equipment,2011,31(4):47-49,54.
[20]杨晓峰,郑琼林,薛尧,等.模块化多电平换流器的拓扑和工业应用综述[J].电网技术,2016,40(1):1-10.YANG Xiaofeng,ZHENG Qionglin,XUE Yao,et al.The topology and industrial application of modular multilevel converter[J].Power System Technology,2016,40(1):1-10.