低压配电网三相四桥臂D-STATCOM的无源控制
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摘要
三相四桥臂配电网静止同步补偿器(D-STATCOM)在解决三相四线制的低压供电系统中由三相不平衡负载所带来的问题上有明显的优越性。在同步旋转d-q-0坐标系下建立了系统的欧拉-拉格朗日(EL)周期平均模型,针对其非线性强耦合的特点,采用了无源控制(PBC)叠加反相交叉耦合项的控制策略实现d、q轴分量非线性解耦控制,根据系统的无源性采用了能量成形和阻尼注入(ESDI)的方法设计了PBC控制器,并从Lyapunov稳定性理论上论证了闭环系统的渐进稳定,通过仿真实验验证采用的控制策略实现了三相不平衡等问题的有效处理。
Three-phase four-bridge distribution static synchronous compensator(D-STATCOM) has the obvious superiority in solving the problems that brought by the three-phase unbalanced loads in the three-phase four-wire low-voltage power supply system. The Euler-Lagrange(EL) cycle average model is established based on the synchronous rotation d-q-0 coordinates. In the light of the nonlinear and strong coupling characteristics, the passivity-based control(PBC) and inverse cross coupling control strategy using the d-q axis nonlinear decoupling control. PBC controller is designed by energy shaping and damping injection(ESDI) based on the passivity of the system. The closed-loop system is demonstrating asymptotically stable according to the Lyapunov stability theory. Simulation results verify to the control strategy deal with three-phase unbalance and other problems effectively.
Three-phase four-bridge distribution static synchronous compensator(D-STATCOM) has the obvious superiority in solving the problems that brought by the three-phase unbalanced loads in the three-phase four-wire low-voltage power supply system. The Euler-Lagrange(EL) cycle average model is established based on the synchronous rotation d-q-0 coordinates. In the light of the nonlinear and strong coupling characteristics, the passivity-based control(PBC) and inverse cross coupling control strategy using the d-q axis nonlinear decoupling control. PBC controller is designed by energy shaping and damping injection(ESDI) based on the passivity of the system. The closed-loop system is demonstrating asymptotically stable according to the Lyapunov stability theory. Simulation results verify to the control strategy deal with three-phase unbalance and other problems effectively.
引文
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[2]王久和,黄立培,杨秀媛.三相电压型PWM整流器的无源性功率控制[J].中国电机工程学报,2008,28(21):20-25.Wang Jiuhe,Huang Lipei,Yang Xiuyuan.Passive power control of three-phase voltage type PWM rectifier[J].Journal of Chinese electrical engineering,2008,28(21):20-25.
[3]张百乐,王久和,慕小斌.EL模型三电平并网逆变器无源控制[J].辽宁工程技术大学学报(自然科学版),2015,34(1):87-92.Zhang Baile,Wang Jiuhe,Mu xiaobin.EL model three level grid-connected inverter without source control[J].Journal of liaoning university of engineering technology(natural science edition),2015,34(1):87-92.
[4]蔡新红,赵成勇.基于欧拉-拉格朗日模型的模块化多电平换流器的无源控制[J].电工技术学报,2013,28(10):225-233.Cai Xinhong,Zhao Chengyong.Passive control of modularized multi-level inverter based on euler-lagrangian model[J].Journal of electrical technology,2013,28(10):225-233.
[5]吴磊涛,杨兆华,胥布工.DC/DC开关变换器的无源控制方法[J].电工技术学报,2004,19(4):66-69.Wu Leitao,Yang Zhaohua,Xu Bugong.The passive control method of DC/DC switching converter[J].Journal of electrical engineering,2004,19(4):66-69.
[6]李鑫,李乃文,杨桢,等.零电流开关准谐振Boost变换器的无源控制[J].电力电子技术,2012,46(2):15-17.Li Xin,Li Nai wen,Yang Zhen,et al.Passive control of the zero-current switching quasi-resonance Boost converter[J].Power electronics technology,2012,46(2):15-17.
[7]孙驰,毕增军,魏光辉.一种新颖的三相四桥臂逆变器解耦控制的建模与仿真[J].中国电机工程学报,2004,24(1):124-130.Sun Chi,Bi Zengjun,Wei Guanghui.Modeling and simulation of decoupling control of a novel three-phase four-bridge arm inverter[J].Journal of Chinese electrical engineering,2004,24(1):124-130.
[8]张晋颖.基于重复控制和PI双闭环控制的三相四桥臂逆变器[D].燕山:燕山大学,2006.Zhang Jinying.Three-phase four-bridge arm inverter based on repetitive control and PI double closed-loop control[D].Yanshan:yanshan university,2006.
[9]钟晓剑,冯霞,徐群伟,等.基于ABC坐标系的三相四线并联型APF控制策略[J].浙江大学学报(工学版),2014,48(5):889-895.Zhong xiaojian,Feng xia,Xu qunwei,et al.APF control strategy based on three-phase four-line parallel in ABC system[J].Journal of zhejiang university(engineering edition),2014,48(5):889-895.
[10]耿乙文,伍小杰,周德佳,等.基于改进型比例谐振控制器的三相四线制光伏发电和有源滤波器系统[J].电工技术学报,2013,28(8):142-148.Geng Yiwen,Wu Xiaojie,Zhou Dejia,et al.Three-phase four-wire photovoltaic power generation and active filter system based on improved proportional resonance controller[J].Journal of electrical technology,2013,28(8):142-148.
[11]唐杰.配电网静止同步补偿器(D-STATCOM)的理论与技术研究[D].长沙:湖南大学,2007.Tang Jie.Theory and technology research of static synchronous compensator(d-statcom)in distribution network[D].Changsha:hu’nan university,2007.
[12]刘冰.三相四桥臂静止无功发生器SVG的研究[D].哈尔滨:哈尔滨理工大学,2013.Liu Bing.Study on the SVG of the static reactive power generator of three-phase four-bridge arm[D].Harbin:Harbin Institute of Technology,2013.
[13]代彬.SVG无功补偿技术及在低压配电网的应用研究[D].淄博:山东理工大学,2013.Dai Bing,SVG reactive power compensation technology and its application in low voltage distribution network.Zibo:shandong university of technology,2013.
[14]金晓明.基于李雅普诺夫稳定性的自适应模糊控制器设计[J].控制理论与应用,2000,17(4):629-632.Jin Xiao-ming.Design of adaptive fuzzy controller based on liapunov stability[J].Control theory and application,2000,17(4):629-632.
[15]闻立飞.多电平静止无功发生器(SVG)的研究[D].锦州:辽宁工业大学,2014.Wen Lifei.Research on multi-level static reactive generator(SVG)[D].Jinzhou:liaoning university of technology,2014.
[16]苏健.级联H桥型SVG功率单元设计及控制策略研究[D].哈尔滨:哈尔滨工业大学,2012.Su Jian.Research on the design and control strategy of the power unit of the cascade H bridge of the cascade[D].Harbin:Harbin Institute of Technology,2012.
[17]石宗林.静止无功发生器(SVG)无功电流检测及控制策略研究[D].锦州:辽宁工业大学,2012.Shi Zonglin.Study on reactive power current detection and control strategy of static reactive power generator(SVG)[D].Jinzhou:liaoning university of technology,2012.
[18]Hilairet M,Béthoux O,Ghanes M,et al.Experimental Validation of a Sampled-Data Passivity-Based Controller for Coordination of Converters in a Fuel Cell System[J].Control Engineering Practice,2015,62(8):5187-5194.
[19]Patel D C,Sawant R R,Chandorkar M C.ThreeDimensional Flux Vector Modulation of Four-Leg SineWave Output Inverters[J].IEEE Transactions on Industrial Electronics,2010,57(4):1261-1269.
[20]曾蓉.基于无源性理论的状态反馈控制[D].哈尔滨:哈尔滨理工大学,2009.Zeng Rong.State feedback control based on passive theory[D].Harbin:Harbin Institute of Technology,2009.