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Dynamicmodelsimulationofdoubly-fedwindturbines
- 为满足在电网发生故障时风电机组需保持与电网连接并向系统不间断供电的要求,提出 了双馈风力发电机的动态模型、变流器模型、变流器保护及电网模型,以研究双馈风力发电机的暂 态特性.以1·5MW SUT-1500双馈风力发电机为原型,由一个无穷大电源等效电网模型,变流器模 型采用定子磁链的定向电流矢量控制方法,利用PSCAD软件对双馈电机的暂态特性进行仿真.仿 真结果表明,矢量控制能够实现双馈电机的有功、无功解耦,并可改善系统的低压穿越能力. -To meet the power f
TUV
- TUV认证标准,400V 以下低压并网光伏发电专用逆变器技术要求和试验方法.-TUV certification standards, 400V power in low voltage grid-connected photovoltaic inverter specific technical requirements and test methods.
lzh(20100613)
- 电力系统的低压电网中，通过输入部分关键数据，例如导线长度，电网中节点数等，达到计算低压电网线损的一个简单小程序-Low-voltage power grid power system, by entering some key data, such as wire length, the grid nodes, etc., to calculate the low-voltage power line loss is a simple applet
Inv4
- systems has forced operators worldwide to develop new grid codes to integrate this form of generation. One important aspect of the problem is the low-voltage ride-through capability of wind generators. This paper describes a solution for wind f
05530365
- systems has forced operators worldwide to develop new grid codes to integrate this form of generation. One important aspect of the problem is the low-voltage ride-through capability of wind generators. This paper describes a solution for wind f
the-electronic-ballast
- 电子镇流器是将市电经整流滤波后，再经DC／AC电源变换器(逆变)产生高频电压点亮灯管。其特点是灯管点燃前高频高压，灯管点燃后高频低压(灯管工作电压)。目前最广泛使用的是具有电压馈电半桥式逆变器类型的电子镇流器。现以该类型逆变器为例，介绍电子镇流器的电路组成和工作原理。-Electronic ballast is the grid after rectifying filter, then through a DC/AC power converter (inverter) produce hig
LVDCpowerflow
- Power flow in a low voltage direct current grid (LVDC) is a non-linear problem just as its counterpart ac. This scr ipt studies convergence and uniqueness of the solution
mode_change
- 基于模式切换实现的并网逆变器低电压穿越控制(Low Voltage Traverse Control of Grid-connected Inverters Based on Mode Switching)