直驱永磁风电机组轴系扭振的非线性控制
|
摘要
从抑制轴系扭振的角度,以直驱永磁同步风力发电机组为对象,建立了包括风力机、传动系统、发电机和电网的数学模型,提出了协调控制的非线性控制策略,有效处理风电系统受到扰动时永磁风机轴系扭振的问题。将设计的非线性控制方法与线性最优控制方法做仿真对比,结果表明当系统受到短路扰动,功率变化扰动和端电压扰动时,非线性控制方法能更好地抑制风力机和发电机之间功角位移偏差的振荡,减少轴系扭振事故的发生,提高系统稳定运行的能力。
The paper addresses the issues associated with modeling and controlling of directly driven windturbine with permanent magnet synchronous generators(D-PMSG),according to the shaft torsional vibration. Acomplete model of D-PMSG including wind turbine model,drive train model and generator model was built.Compared to the linear optimal method,the simulation of nonlinear method shows that the nonlinear controlcould restrain oscillation of the angular displacement deviation between turbine and generator,reduced risk ofaccidents of shaft torsional vibration and improved greatly the steady-state operation level of system when thesystem was disturbed by short circuit,power change and terminal voltage.
The paper addresses the issues associated with modeling and controlling of directly driven windturbine with permanent magnet synchronous generators(D-PMSG),according to the shaft torsional vibration. Acomplete model of D-PMSG including wind turbine model,drive train model and generator model was built.Compared to the linear optimal method,the simulation of nonlinear method shows that the nonlinear controlcould restrain oscillation of the angular displacement deviation between turbine and generator,reduced risk ofaccidents of shaft torsional vibration and improved greatly the steady-state operation level of system when thesystem was disturbed by short circuit,power change and terminal voltage.
引文
[1]LALOR G,MULLANE A,O’MALLEY M.Frequency control and wind turbine technologies[J].IEEE Transactions on Power Systems,2005,20(4):1905-1913.
[2]王晓敏,李自成,剪浩杰.基于前馈和PI控制的光伏离网逆变器的研究[J].武汉工程大学学报,2016,38(3):293-294.
[3]杨敏霞,解大,娄宇成,等.定速异步机型风电场机网扭振建模及仿真[J].电网技术,2014,38(9):2422-2428.
[4]解大,王瑞琳,王西田,等.多机型风电机组机网扭振的模型与机理[J].太阳能学报,2011,32(9):1281-1283.
[5]杨秀媛,肖洋,陈树勇.风电场风速和发电功率预测研究[J].中国电机工程学报,2005,25(11):1-5.
[6]陈树勇,戴慧珠,白晓民.风电场的发电可靠性模型及其应用[J].中国电机工程学报,2000,20(3):26-29.
[7]王忠勇.基于微分几何的电池储能系统输出稳定控制器设计[J].武汉工程大学学报,2011,33(8):103-106.
[8]张红光,张粒子,陈树勇.大容量风电场对电力系统小干扰稳定和阻尼特性的影响[J].电网技术,2007,31(13):76-80.
[9]王毅,张祥宇,李和明,等.永磁直驱风电机组对系统功率振荡的阻尼控制[J].电工技术学报,2012,27(12):163-165.
[10]KIA S H,HENAO H.Torsional vibration effects on induction machine current and torque signatures in gearbox-based electromechanical system[J].IEEE Transactions on Industrial Electronics,2009,56(11):4689-4699.
[11]耿华,许德伟,吴斌,等.永磁直驱变速风电系统的控制及稳定性分析[J].中国电机工程报,2009,29(30):68-75.
[12]郝正航,余贻鑫.励磁控制引起的双馈风电机组轴系扭振机理[J].电力系统自动化,2010,34(21):81-86.
[13]鲁玉普,解大,孙俊博,等.风电场机网扭振的小信号建模及仿真[J].电网技术,2016,40(2):3-6.
[14]蒋长江,刘俊,刘友波,等.计及风电随机激励的电力系统暂态稳定分析[J].电力自动化设备,2016,36(3):100-103.
[15]张友鹏,李萌,高锋阳,等.直驱型机组风电场并网静态电压稳定性研究[J].电源技术,2013,137(5):811-813.
[16]徐光虎,王杰,陈陈,等.基于微分代数模型的AC/DC系统非线性控制器设计[J].中国电机工程学报,2005,25(7):52-57.
[17]李啸骢,程时杰,韦化,等.一种高性能的非线性励磁控制[J].中国电机工程学报,2003,23(12):37-42.
[18]李啸骢,程时杰,韦化,等.输出函数在单输入单输出非线性控制系统设计中的重要作用[J].中国电机工程学报,2004,24(10):50-56.
[19]李啸骢,程时杰,韦化.输出函数在多输入多输出非线性控制系统设计中的重要作用[J].中国电机工程学报,2006,26(9):87-93.
[2]王晓敏,李自成,剪浩杰.基于前馈和PI控制的光伏离网逆变器的研究[J].武汉工程大学学报,2016,38(3):293-294.
[3]杨敏霞,解大,娄宇成,等.定速异步机型风电场机网扭振建模及仿真[J].电网技术,2014,38(9):2422-2428.
[4]解大,王瑞琳,王西田,等.多机型风电机组机网扭振的模型与机理[J].太阳能学报,2011,32(9):1281-1283.
[5]杨秀媛,肖洋,陈树勇.风电场风速和发电功率预测研究[J].中国电机工程学报,2005,25(11):1-5.
[6]陈树勇,戴慧珠,白晓民.风电场的发电可靠性模型及其应用[J].中国电机工程学报,2000,20(3):26-29.
[7]王忠勇.基于微分几何的电池储能系统输出稳定控制器设计[J].武汉工程大学学报,2011,33(8):103-106.
[8]张红光,张粒子,陈树勇.大容量风电场对电力系统小干扰稳定和阻尼特性的影响[J].电网技术,2007,31(13):76-80.
[9]王毅,张祥宇,李和明,等.永磁直驱风电机组对系统功率振荡的阻尼控制[J].电工技术学报,2012,27(12):163-165.
[10]KIA S H,HENAO H.Torsional vibration effects on induction machine current and torque signatures in gearbox-based electromechanical system[J].IEEE Transactions on Industrial Electronics,2009,56(11):4689-4699.
[11]耿华,许德伟,吴斌,等.永磁直驱变速风电系统的控制及稳定性分析[J].中国电机工程报,2009,29(30):68-75.
[12]郝正航,余贻鑫.励磁控制引起的双馈风电机组轴系扭振机理[J].电力系统自动化,2010,34(21):81-86.
[13]鲁玉普,解大,孙俊博,等.风电场机网扭振的小信号建模及仿真[J].电网技术,2016,40(2):3-6.
[14]蒋长江,刘俊,刘友波,等.计及风电随机激励的电力系统暂态稳定分析[J].电力自动化设备,2016,36(3):100-103.
[15]张友鹏,李萌,高锋阳,等.直驱型机组风电场并网静态电压稳定性研究[J].电源技术,2013,137(5):811-813.
[16]徐光虎,王杰,陈陈,等.基于微分代数模型的AC/DC系统非线性控制器设计[J].中国电机工程学报,2005,25(7):52-57.
[17]李啸骢,程时杰,韦化,等.一种高性能的非线性励磁控制[J].中国电机工程学报,2003,23(12):37-42.
[18]李啸骢,程时杰,韦化,等.输出函数在单输入单输出非线性控制系统设计中的重要作用[J].中国电机工程学报,2004,24(10):50-56.
[19]李啸骢,程时杰,韦化.输出函数在多输入多输出非线性控制系统设计中的重要作用[J].中国电机工程学报,2006,26(9):87-93.