双馈风电场无功电压分层协调控制的研究
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摘要
针对变速恒频双馈发电机和静止同步补偿器(STATCOM)组成的风电场,为了解决大型风电场并网运行的电压稳定性和无功裕度问题,提出面向并网点电压偏差指标和风电场无功源裕度最优的无功电压分层协调控制策略。阐述了双馈发电机组和STATCOM的无功分配原则,基于电压和无功裕度的综合指标构建无功电压分层协调控制策略的目标函数。采用粒子群优化算法的退火不可微精确罚函数法,求解该策略的非线性多约束最优化目标函数。基于Matlab/simulink搭建某风电场的电力系统仿真模型,仿真结果验证了所提控制策略的正确性与有效性。
In a wind farm consists of variable speed constant frequency doubly-fed generator and static synchronous compensator( STATCOM),in orderto solve the voltage instability and the reactive power margin issues during the operation of grid-connected,a hierachical coordination control strategy comprehensively consideringthe voltage-deviation indexand the margin optimization of the reactive power sources in large wind farmis proposed in this paper. The reactive power distribution principles of doubly-fedgeneratorunits and static synchronous compensator areelaborated,and then its objective function is constructedon the basis of aggregative indicator of voltage and reactive power margin. The annealing undifferentiable exact penalty functionin particle swarm optimization algorithm is used to solve the multi-constrained nonlinear optimization objective function. Based on Matlab / simulink,the electric power system simulation model of regional power grid with a wind farmis established and then simulation results verify the efficiency and effectiveness of the proposed control strategy.
In a wind farm consists of variable speed constant frequency doubly-fed generator and static synchronous compensator( STATCOM),in orderto solve the voltage instability and the reactive power margin issues during the operation of grid-connected,a hierachical coordination control strategy comprehensively consideringthe voltage-deviation indexand the margin optimization of the reactive power sources in large wind farmis proposed in this paper. The reactive power distribution principles of doubly-fedgeneratorunits and static synchronous compensator areelaborated,and then its objective function is constructedon the basis of aggregative indicator of voltage and reactive power margin. The annealing undifferentiable exact penalty functionin particle swarm optimization algorithm is used to solve the multi-constrained nonlinear optimization objective function. Based on Matlab / simulink,the electric power system simulation model of regional power grid with a wind farmis established and then simulation results verify the efficiency and effectiveness of the proposed control strategy.
引文
[1]张红光,张粒子,陈树勇,等.大容量风电场接入电网的暂态稳定特性和调度对策研究[J].中国电机工程学报,2007,27(31):47-53.Zhang Hongguang,Zhang Lizi,Chen Shuyong,et al.Studies on thetransient behavior and dispatching strategy of power system integrated with large scale wind farms[J].Proceedings of the CSEE,2007,27(31):47-53.
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[10]郎永强,张学广,徐殿国,等.双馈电机风电场无功功率分析及控制策略[J].中国电机工程学报,2007,27(9):77-82.Lang Yongqiang,Zhang Xueguang,Xu Dianguo,et al.Reactive power analysis and control of doubly fed induction generator wind farm[J].Proceedings of the CSEE,2007,27(9):77-82.
[11]Rasool Aghatehrani,Lingling Fan,Rajesh Kavasseri.CoordinatedReactive Power Control of DFIG Rotor and Grid Sides Converters[C].Power&Energy Society General Meeting,2009.
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[13]杨桦,梁海峰,李庚银.含双馈感应电机的风电场电压协调控制策略[J].电网技术,2011,35(2):121-126.Yang Hua,Liang Haileng,Li Gengyin.A coordinated voltage control strategy for wind farm containing doubly fed induction generators[J].Power System Technology,2011,35(2):121-126.
[14]栗然,唐凡,刘英培,等.双馈风电场新型无功补偿与电压控制方案[J].中国电机工程学报,2012,32(19):16-23.Li Ran,Tang Fan,Liu Yingpei,et al.A new scheme of reactive power compensation and voltage control Ior DFIG based wind farm[J].Proceedings of the CSEE,2012,32(19):16-23.
[15]杨硕,王伟胜,刘纯,等.双馈风电场无功电压协调控制策略[J].电力系统自动化,2013,37(12):1-6.Yaxg Shuo,Wang Weisheng,Liu Chun,et al.Coordinative control strategy for reactive power and voltage of wind farms with doubly-fed induction generators[J].Automation of Electric Power Systems,2013,37(12):1-6.
[16]王成福,梁军,张利,等.基于静止同步补偿器的风电场无功电压控制策略[J].中国电机工程学报,2010,30(25):23-28.
[17]李丹,贾琳,许晓菲,等.风电机组脱网原因及对策分析[J].电力系统自动化,2010,35(22):41-44.
[18]KENNEDY J,EBERHART R.Particle swarm opti-mization[C].MIEEE International Conference on Neu-ral Networks.Piscataway:IEEE,1995:1942-1948.
[19]Vaz A I F.Optimization of Nonlinear Constrained Particle Swarm[J].Technological and Economic Development of Economy,2006,12(1):30-36.
[20]罗金炎.一种求解非线性约束优化问题的粒子群优化算法[J].温州大学学报·自然科学版,2012,33(1):1-5.
[2]陈洁,杨秀,朱兰,等.微网多目标经济调度优化[J].中国电机工程学报,2013,33(19):57-66.Chen Jie,Yang Xiu,Zhu Lan,et al.Microgrid multi-objective economic dispatch optimization proceedings of the CSEE,2013,33(19):57-66.
[3]Pena R,Clare J C,Asher G M.Doubly fed induction generator usingback-to-back PWM converter and its application to variable-speedwind-energy generation[J].Electric Power Applications,IEEProceedings,1996,143(3):231-241.
[4]朱颖,李建林,赵斌.双馈型风力发电系统低电压穿越策略仿真[J].电力自动化设备,2010,30(6):20-24.Zhu Ying,Li Jianlin,Zhao Bin.Simulation of LVRT stratciry for DFIG wind powersystem[J].Electric Power Automation Equiment,2010,30(6):20-24.
[5]曹军,张榕林,林国庆,等.变速恒频双馈电机风电场电压控制策略[J].电力系统自动化,2009,33(4):87-89.Cao Jun,Zhang Ronglin,Lin Guoqing,et al.A voltagecontrol strategy for wind farms using doubly fed inductiongenerator wind turbines[J].Automation of Electric Power Systems,2009,33(4):87-89.
[6]迟永宁,王伟胜,戴慧珠.改善基于双馈感应发电机的并网风电场暂态电压稳定性研究[J].中国电机工程学报,2007,27(25):27-33.Chi Yongning,Wang Weisheng,Dai Huizhu.Study on transientvoltage stability enhancement of grid-connected wind farm withdoubly fed induction generator installations[J].Proceedings of the CSEE,2007,27(25):27-33.
[7]栗春,姜齐荣,王仲鸿.STATCOM电压控制系统性能分析[J].中国电机工程学报,2000,20(8):46-50.Li chun,Jiang Qirong,Wang Zhonghong.Voltage regulationstability analysis of statcom[J].Proceedings of the CSEE,2000,20(8):46-50.
[8]贾俊川,刘晋,张一工.双馈风力发电系统的新型无功优化控制策略[J].中国电机工程学报,2010,30(30):87-92.Jia Junchuan,Liu Jin,Zhang Yigong.Novel Reactive Power Optimization Control Strategy for Doubly Fed Induction Wind Power Generation System[J].Proceedingsof the CSEE,2010,30(30):87-92.
[9]申洪,王伟胜,戴慧珠.变速恒频风力发电机组的无功功率极限[J].电网技术,2003,27(11):60-63.Shen Hong,Wang Weisheng,Dai Huizhu.Reactive power limit ofvariable-speed constant-frequency wind turbine[J].Power System Technology,2003,27(11):60-63.
[10]郎永强,张学广,徐殿国,等.双馈电机风电场无功功率分析及控制策略[J].中国电机工程学报,2007,27(9):77-82.Lang Yongqiang,Zhang Xueguang,Xu Dianguo,et al.Reactive power analysis and control of doubly fed induction generator wind farm[J].Proceedings of the CSEE,2007,27(9):77-82.
[11]Rasool Aghatehrani,Lingling Fan,Rajesh Kavasseri.CoordinatedReactive Power Control of DFIG Rotor and Grid Sides Converters[C].Power&Energy Society General Meeting,2009.
[12]KAYIKCI M,MILANOVICJ V.Reactive power controlstrategies for DFIG-based plants.IEEE Trans on Energy Conversion,2007,22(2):389-396.
[13]杨桦,梁海峰,李庚银.含双馈感应电机的风电场电压协调控制策略[J].电网技术,2011,35(2):121-126.Yang Hua,Liang Haileng,Li Gengyin.A coordinated voltage control strategy for wind farm containing doubly fed induction generators[J].Power System Technology,2011,35(2):121-126.
[14]栗然,唐凡,刘英培,等.双馈风电场新型无功补偿与电压控制方案[J].中国电机工程学报,2012,32(19):16-23.Li Ran,Tang Fan,Liu Yingpei,et al.A new scheme of reactive power compensation and voltage control Ior DFIG based wind farm[J].Proceedings of the CSEE,2012,32(19):16-23.
[15]杨硕,王伟胜,刘纯,等.双馈风电场无功电压协调控制策略[J].电力系统自动化,2013,37(12):1-6.Yaxg Shuo,Wang Weisheng,Liu Chun,et al.Coordinative control strategy for reactive power and voltage of wind farms with doubly-fed induction generators[J].Automation of Electric Power Systems,2013,37(12):1-6.
[16]王成福,梁军,张利,等.基于静止同步补偿器的风电场无功电压控制策略[J].中国电机工程学报,2010,30(25):23-28.
[17]李丹,贾琳,许晓菲,等.风电机组脱网原因及对策分析[J].电力系统自动化,2010,35(22):41-44.
[18]KENNEDY J,EBERHART R.Particle swarm opti-mization[C].MIEEE International Conference on Neu-ral Networks.Piscataway:IEEE,1995:1942-1948.
[19]Vaz A I F.Optimization of Nonlinear Constrained Particle Swarm[J].Technological and Economic Development of Economy,2006,12(1):30-36.
[20]罗金炎.一种求解非线性约束优化问题的粒子群优化算法[J].温州大学学报·自然科学版,2012,33(1):1-5.
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