变速恒频风电机组是主流的风力发电机组。对于变速恒频风电机组而言,在额定风速以下运行时,风电机组应该尽可能的提高能量转换效率,这主要通过发电机转矩的控制,使机组变速运行来实现。 目前,变速恒频风电机组是主流的风力发电机组,其控制是风力发电的核心问题,同时也是最难解决的问题。
恒速恒频风电机组/constant speed-constant frequency WTGS 变速恒频风电机组/variable speed-constant frequency WTGS 直驱式风电机组/direct drive WTGS, gearless WTGS ..
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在双馈电机稳态数学模型的基础上,建立了变速恒频风电机组并网运行稳态数学模型。
On the basis of steady state model of doubly-fed machine, steady state model of VSCF wind turbine for intergration analysis is established.
由沈阳工业大学研制的MW级变速恒频风电机组属于变桨距型机组,它在额定风速以上进行变桨距调功控制。
MW variable speed constant frequency wind turbine from shenyang university of technology is a variable pitch wind turbine, it can change pitch to adjust power above rated wind speed.
为增强直驱型变速恒频风电系统的低电压穿越能力,采取了变流器直流侧增加卸荷负载以在故障时消耗掉直流侧多余的能量,使风电机组的正常运行基本不受电压跌落影响的应对措施。
By adding damp load at DC-side of the converter, redundant energy at DC-side during grid faults will be consumed, therefore the operating of wind turbine will not be influenced by grid voltage sags.
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