适用于电力系统动态分析的双馈式感应风机模型
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摘要
随着风电接入电网容量的不断增加,风机对系统稳定性的影响不容忽视。构建了适用于电力系统动态分析的双馈式感应风机模型。首先阐述双馈风机的结构原理、控制系统以及数学模型,给出了双馈风机单机无穷大系统小干扰稳定分析建模的一般方法。基于所建模型,通过对所建立的双馈风机小扰动特征值分析,重点考察了双馈风机系统参数、运行状态以及网络强度对系统运行模式的影响。模态分析的结果可为双馈风机的制造和控制系统设计提供有效帮助。
With the increase of wind power capacity integrating into power system, the effects of generator on the system stability cannot be ignored. The paper establishes the model of doubly-fed induction generator(DFIG) for power system dynamic analysis. Firstly, the structure principle, control system and mathematical model of DFIG is introduced. Then the general method is proposed for modeling a single machine infinite bus system with DFIG for the small stability analysis. The change in the modal properties for different system parameters, operating conditions, and the strength of the grid is calculated and observed based on the proposed model. The results of the modal analysis provide effective help for the manufacture and control design of DFIG.
With the increase of wind power capacity integrating into power system, the effects of generator on the system stability cannot be ignored. The paper establishes the model of doubly-fed induction generator(DFIG) for power system dynamic analysis. Firstly, the structure principle, control system and mathematical model of DFIG is introduced. Then the general method is proposed for modeling a single machine infinite bus system with DFIG for the small stability analysis. The change in the modal properties for different system parameters, operating conditions, and the strength of the grid is calculated and observed based on the proposed model. The results of the modal analysis provide effective help for the manufacture and control design of DFIG.
引文
[1]王忱,石立宝,姚良忠,等.大规模双馈型风电场的小扰动稳定分析[J].中国电机工程学报,2010, 30(4):63-70.WANG Chen, SHI Libao, YAO Liangzhong, et al. Small signal stability analysis of the large-scale wind farm with DFIGs[J]. Proceedings of the CSEE, 2010,30(4):63-70.
[2]陈汉杰,罗毅,张磊,等.双馈风机虚拟惯量控制对电力系统暂态稳定的影响[J].现代电力,2018, 35(04):66-71.CHEN Hanjie, LUO Yi, ZHANG Lei, et al. Impact of virtual inertia control of double-fed induction generator on power system transient stability[J]. Modem Electric Power, 2018, 35(04):66-71.
[3]李丹,王炤光,杨宁,等.考虑风速差异性时风电场无功调节能力分析[J].智慧电力,2018, 46(1):22-27.LI Dan, WANG Zhaoguang, YANG Ning, et al. Analysis of reactive power regulation capacity of wind fann in considering wind speed difference[J]. Smart Power, 2018,46(1):22-27.
[4]张阁,杨艺云,肖静,等.基于分区变步长爬山法的双馈风机MPPT控制策略[J].电气传动,2016, 46(11):51-55.ZHANG Ge, YANG Yiyun,XIAO Jing,et al. Research on MPPT control strategy on doubly-fed wind turbine based on partition variable step size hill-climbing method[J].Electric Drive, 2016, 46(11):51-55.
[5]谷昱君,聂暘,王东,焦彦军.基于改进免疫遗传算法的双馈风机控制系统PI参数优化[J].陕西电力,2016,44(11):25-30.GU Yujun, NIE Wei, WANG Dong, et al. PI parameter optimization of DFIG control system based on improved immune genetic algorithm[J]. Shaanxi Electric Power,2016, 44(11):25-30.
[6]王皓怀,陈懿,王坚,等.电压跌落故障下的双馈型风力发电机动态响应特性分析[J].智慧电力,2017,45(09):14-19+25.WANG Haohuai, CHEN Yi, WANG Jian, et al. Analysis of dynamic response characteristics of doubly-fed wind power generator under voltage drop failure[J]. Smart Power,2017,45(09):14-19+25.
[7]周玉琦,李东东,梁自超.故障下双馈感应风力发电机无功协调控制策略[J].电力系统及其自动化学报,2016, 28(07):12-18.ZHOU Yuqi, LI Dongdong, LIANG Zichao. Coordinative reactive power control strategy for DFIG under fault[J].Proceedings of the CSU-EPSA, 2016, 28(07):12-18.
[8]林今,李国杰,孙元章,等.双馈风电机组的小信号分析及其控制系统的参数优化[J].电力系统自动化,2009, 33(05):86-90.LIN Jin, LI Guojie, SUN Yuanzhang, et al. Small-signal analysis and control system parameter optimization for DFIG wind turbines[J]. Automation of Electric Power Systems, 2009, 33(05):86-90.
[9]熊连松,刘小康,卓放,等.光伏发电系统的小信号建模及其控制器参数的全局优化设计方法[J].电网技术,2014, 38(5):1234-1241.XIONG Liansong, LIU Xiaokang, ZHUO Fang, et al.Small-signal modeling of photovoltaic power generation system and global optimal design for its controller parameters[J]. Power System Technology, 2014, 38(5):1234-1241.
[10]熊连松,卓放,刘小康,等.静止同步补偿器抑制电网功率振荡的机理研究[J].西安交通大学学报,2017, 51(12):112-120.XIONG Liansong, ZHUO Fang, LIU Xiaokang, et al.Analysis on mechanism of power oscillation mitigation by statcom[J].Journal of Xi'an Jiaotong University, 2017, 51(12):112-120.
[11]李辉,张志科,杨超,等.双馈风电机组参数及运行状态的小干扰稳定性分析[J].电机与控制学报,2013, 17(2):14-21.LI Hui, ZHANG Zhike, YANG Chao, et al. Analysis of parameter and operation state on small-signal stability of doubly-fed wind turbine generation system[J]. Electric Machines and Control, 2013, 17(2):14-21.
[12]刘巨,姚伟,文劲宇.考虑PLL和接入电网强度影响的双馈风机小干扰稳定性分析与控制[J].中国电机工程学报,2017, 37(11):3162-3173.LIU Ju, YAO Wei, WEN Jinyu. Small signal stability analysis and control of double-fed induction generatorconsidering influence of PLL and power grid strength[J].Proceedings of the CSEE,2017, 37(11):3162-3173.
[13]贾燕冰,李玉博,麻金碧,等.考虑风速分区的双馈风机并网小干扰稳定分析[J].电力建设,2018, 39(7):97-106.JIA Yanbing, LI Yubo, MA Jinbi, et al. Small-signal stability analysis on grid connection of DFIG considering wind speed partition[J]. Electric Power Construction,2018, 39(7):97-106.
[14]王清,薛安成,张晓佳,等.双馈风机下垂控制对系统小扰动功角稳定的影响机理分析[J].电网技术,2017,41(4):1091-1099.WANG Qing, XUE Ancheng, ZHANG Xiaojia, et al.Mechanism analysis of droop control of DFIG Influence on system small-signal dynamic stability based on damping torque analysis[J]. Power System Technology, 2017, 41(4):1091-1099.
[15]杨玲玲,杜文娟,姚亦章,等.DFIG接人单机无穷大系统的阻尼转矩简化计算[J].华北电力大学学报(自然科学版),2016, 43(5):29-35.YANG Lingling, DU Wenjuan, YAO Yizhang, et al.Simplified calculation of damping torque of singlemachine infinite-bus power system connected with DFIG[J]. Journal of North China Electric Power University,2016, 43(5):29-35.
[16]苏展,徐谦,孙黎滢,等.含DFIG的电力系统随机建模及小干扰随机稳定分析[J].电网技术,2015, 39(9):2404-2410.SU Zhan, XU Qian, SUN Liying, et al. Stochastic modeling and small signal stability analysis of power systems including DFIG[J]. Power System Technology,2015, 39(9):2404-2410.
[17]薛安成,王清,毕天姝.双馈风机与同步机小扰动功角互作用机理分析[J].中国电机工程学报,2016, 36(2):417-425.XUE Ancheng, WANG Qing, BI Tianshu. Study on the mechanism of small signal dynamic interaction between doubly-fed induction generator and synchronous generator[J]. Proceedings of the CSEE,2016, 36(2):417-4.
[2]陈汉杰,罗毅,张磊,等.双馈风机虚拟惯量控制对电力系统暂态稳定的影响[J].现代电力,2018, 35(04):66-71.CHEN Hanjie, LUO Yi, ZHANG Lei, et al. Impact of virtual inertia control of double-fed induction generator on power system transient stability[J]. Modem Electric Power, 2018, 35(04):66-71.
[3]李丹,王炤光,杨宁,等.考虑风速差异性时风电场无功调节能力分析[J].智慧电力,2018, 46(1):22-27.LI Dan, WANG Zhaoguang, YANG Ning, et al. Analysis of reactive power regulation capacity of wind fann in considering wind speed difference[J]. Smart Power, 2018,46(1):22-27.
[4]张阁,杨艺云,肖静,等.基于分区变步长爬山法的双馈风机MPPT控制策略[J].电气传动,2016, 46(11):51-55.ZHANG Ge, YANG Yiyun,XIAO Jing,et al. Research on MPPT control strategy on doubly-fed wind turbine based on partition variable step size hill-climbing method[J].Electric Drive, 2016, 46(11):51-55.
[5]谷昱君,聂暘,王东,焦彦军.基于改进免疫遗传算法的双馈风机控制系统PI参数优化[J].陕西电力,2016,44(11):25-30.GU Yujun, NIE Wei, WANG Dong, et al. PI parameter optimization of DFIG control system based on improved immune genetic algorithm[J]. Shaanxi Electric Power,2016, 44(11):25-30.
[6]王皓怀,陈懿,王坚,等.电压跌落故障下的双馈型风力发电机动态响应特性分析[J].智慧电力,2017,45(09):14-19+25.WANG Haohuai, CHEN Yi, WANG Jian, et al. Analysis of dynamic response characteristics of doubly-fed wind power generator under voltage drop failure[J]. Smart Power,2017,45(09):14-19+25.
[7]周玉琦,李东东,梁自超.故障下双馈感应风力发电机无功协调控制策略[J].电力系统及其自动化学报,2016, 28(07):12-18.ZHOU Yuqi, LI Dongdong, LIANG Zichao. Coordinative reactive power control strategy for DFIG under fault[J].Proceedings of the CSU-EPSA, 2016, 28(07):12-18.
[8]林今,李国杰,孙元章,等.双馈风电机组的小信号分析及其控制系统的参数优化[J].电力系统自动化,2009, 33(05):86-90.LIN Jin, LI Guojie, SUN Yuanzhang, et al. Small-signal analysis and control system parameter optimization for DFIG wind turbines[J]. Automation of Electric Power Systems, 2009, 33(05):86-90.
[9]熊连松,刘小康,卓放,等.光伏发电系统的小信号建模及其控制器参数的全局优化设计方法[J].电网技术,2014, 38(5):1234-1241.XIONG Liansong, LIU Xiaokang, ZHUO Fang, et al.Small-signal modeling of photovoltaic power generation system and global optimal design for its controller parameters[J]. Power System Technology, 2014, 38(5):1234-1241.
[10]熊连松,卓放,刘小康,等.静止同步补偿器抑制电网功率振荡的机理研究[J].西安交通大学学报,2017, 51(12):112-120.XIONG Liansong, ZHUO Fang, LIU Xiaokang, et al.Analysis on mechanism of power oscillation mitigation by statcom[J].Journal of Xi'an Jiaotong University, 2017, 51(12):112-120.
[11]李辉,张志科,杨超,等.双馈风电机组参数及运行状态的小干扰稳定性分析[J].电机与控制学报,2013, 17(2):14-21.LI Hui, ZHANG Zhike, YANG Chao, et al. Analysis of parameter and operation state on small-signal stability of doubly-fed wind turbine generation system[J]. Electric Machines and Control, 2013, 17(2):14-21.
[12]刘巨,姚伟,文劲宇.考虑PLL和接入电网强度影响的双馈风机小干扰稳定性分析与控制[J].中国电机工程学报,2017, 37(11):3162-3173.LIU Ju, YAO Wei, WEN Jinyu. Small signal stability analysis and control of double-fed induction generatorconsidering influence of PLL and power grid strength[J].Proceedings of the CSEE,2017, 37(11):3162-3173.
[13]贾燕冰,李玉博,麻金碧,等.考虑风速分区的双馈风机并网小干扰稳定分析[J].电力建设,2018, 39(7):97-106.JIA Yanbing, LI Yubo, MA Jinbi, et al. Small-signal stability analysis on grid connection of DFIG considering wind speed partition[J]. Electric Power Construction,2018, 39(7):97-106.
[14]王清,薛安成,张晓佳,等.双馈风机下垂控制对系统小扰动功角稳定的影响机理分析[J].电网技术,2017,41(4):1091-1099.WANG Qing, XUE Ancheng, ZHANG Xiaojia, et al.Mechanism analysis of droop control of DFIG Influence on system small-signal dynamic stability based on damping torque analysis[J]. Power System Technology, 2017, 41(4):1091-1099.
[15]杨玲玲,杜文娟,姚亦章,等.DFIG接人单机无穷大系统的阻尼转矩简化计算[J].华北电力大学学报(自然科学版),2016, 43(5):29-35.YANG Lingling, DU Wenjuan, YAO Yizhang, et al.Simplified calculation of damping torque of singlemachine infinite-bus power system connected with DFIG[J]. Journal of North China Electric Power University,2016, 43(5):29-35.
[16]苏展,徐谦,孙黎滢,等.含DFIG的电力系统随机建模及小干扰随机稳定分析[J].电网技术,2015, 39(9):2404-2410.SU Zhan, XU Qian, SUN Liying, et al. Stochastic modeling and small signal stability analysis of power systems including DFIG[J]. Power System Technology,2015, 39(9):2404-2410.
[17]薛安成,王清,毕天姝.双馈风机与同步机小扰动功角互作用机理分析[J].中国电机工程学报,2016, 36(2):417-425.XUE Ancheng, WANG Qing, BI Tianshu. Study on the mechanism of small signal dynamic interaction between doubly-fed induction generator and synchronous generator[J]. Proceedings of the CSEE,2016, 36(2):417-4.