而风电机组的设计在很大程度上又取决于风力机的气动性能。
However, the wind turbine design is largely dependent on the wind turbine aerodynamic performance.
风电机组控制系统中PI控制器较多，需要辨识各PI控制器的参数。
PI controller is widely used in wind turbine control system and its parameters need to be identified.
该文建立了相关的风电机组模型，对雷击引起的暂态过电压进行了计算分析。
In this paper the model of wind turbines is established and the transient overvoltage caused by lightning stroke is calculated and analyzed.
本实用新型涉及一种风力发电装置，特别是涉及一种垂直轴式大型风电机组。
The utility model relates to a wind powered generating device, in particular to a vertical axis type large scale wind generating set.
叶片作为风电机组的核心部件，其设计理论和制造技术被视为风电机组研发的关键。
Wind turbine blades are the main components of wind turbines, and their design and manufacturing technology are regarded as the key to wind turbine research and development.
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.
在变速恒频双馈风电机组中，交流励磁双馈风力发电机的设计和制造技术是十分关键的。
The design and manufacture for MW-class AC-excited doubly-fed generator is very important in the variable speed constant frequency doubly-fed wind power system.
以某地区电网为例进行仿真计算，并提出了一种确定风电机组低电压穿越参数与要求的方法。
The simulation of a certain domestic 220kV power grid is implemented and a method to decide the LVRT parameters of wind turbine generator and requirement is proposed.
本文在分析低风速风能利用策略的基础上，认为设计适合低风速发电的大型风电机组是必要的。
On the basis of studying how to use wind energy of low wind speed, a conclusion was drawn that design a large wind turbine which is suitable to generate electricity by low wind speed is essential.
风(能)资源评估是开发风电项目的基础，是风电场可行性分析和风电机组设计与选型的重要依据。
Wind (energy) resource assessment is the basis for development of wind power project and the important content of wind farm feasibility study and wind turbine design and type selection.
计算中采用的风电场数学模型考虑了风电机组的叶片、轮毂、齿轮箱和连轴器以及异步发电机的特性。
The mathematical model of wind turbine applied in the calculation takes account of characteristics of the blades, hub, gearbox, shaft and asynchronous generator.
因此，有必要研究变速风电机组的频率控制策略，利用变速风电机组来提高电力系统的频率控制能力。
Therefore, it is necessary to study the frequency control strategy of the variable speed wind turbines, use variable speed wind turbines to improve the frequency control ability of the power system.
他将项目的风电机组数量减少到了130座，还要求在建设中遵循海洋地质学调查来避免惊扰敏感的土地。
He has ordered that the project be scaled back to 130 turbines, and is requiring that the developer conduct further Marine archaeological surveys to avoid disturbing any sensitive ground.
应用该模型，可以根据风电机组风功率特性曲线和转速特性曲线，计算风电机组定子侧和转子侧的功率分布。
In this model, power distribution in stator winding and rotor winding is calculated according to both wind-power curve and rotation speed control law of VSCF wind turbine.
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.
随着变速风电机组容量在电网中的所占比例的不断提高，其接入电网将给电力系统的频率控制带来不利影响。
With the rate of the variable speed wind turbines connected to the grid increasing, it will bring adverse influence on frequency control of the power system.
在详细分析偏航控制系统控制要求的基础上，采用单片机89c51作为主控单元，设计了风电机组的偏航控制系统。
On the basis of analyzing the control process completely, the thesis designs yaw control system for WTGs using 89c51 single-chip computer as a main control unit.
风电机组发电出力的影响因素有很多，如风速、紊流、风机塔影效应等，这些因素的随机变化都会引起风机出力的波动。
There are many influencing factors of wind power unit such as wind velocity, confused flowing, tower-shadow effect and so on, which will bring fluctuation of wind turbine output.
根据德国劳埃德船级社《风电机组认证指南》的要求，必须对设计后的样机做全功率试验，以验证其是否符合设计指标。
The prototype must be made full power test according to"Guideline for the Certification of Wind Turbines"by Germanisher Lioyd.
风电机组的数学模型主要包括风轮机模型、传动机构模型和异步发电机模型，仿真分析了风电机组对于风速四种分量的响应。
Wind generator model includes wind turbine model, transferring structure model and asynchronous generator model. Response of wind generators to four kinds of wind speed is simulated and analyzed.
由于风速的随机性、风电机组参数的时变性和系统的非线性，以及系统的复杂性引起的时滞性，造成风电机组输出功率的不稳定。
Owing to the stochastic nature of wind speed, time-variable of parameters, system lagging and system nonlinearities the power generated by wind turbines changes rapidly.
随着风力发电在电网中的比例日益增加，电网对风电机组的要求也越来越高，低电压穿越技术(LVRT)就是其中一项重要指标。
With the proportion increasing of wind power generation in power grid, the power grid demand for increasingly high to wind turbine. Low-voltage through technology (LVRT) is one important indicator.
两个印第安人部落同样反对这个项目，他们认为风电机组会打扰陵寝中的祖先，这些祖先的墓地曾经位于干土层，但现在却在水下。
Two Indian tribes also have opposed the project, saying the turbines would disturb ancestral burial grounds that were once on dry land but are now under water.
大多数电气设备要求有固定频率的电源，电力控制要求减少风力发电并网时的不利影响，这些因素都需要使用主动控制的风电机组。
Most electrical devices requiring a fixed frequency, electric power control requirements to reduce the adverse effects of nets, these factors need to use active control to control wind turbine.
其次建立了风速、风电机组及发电机组数学模型，其中风电机组的数学模型主要包括风轮机模型、传动机构模型和异步发电机模型。
And then wind speed, wind generators and wind farm are modeled. Wind generator model includes wind turbine model, transferring structure model and asynchronous generator model.
通过简化异步发电机模型，将异步电机的滑差引入到计算变量中；将风电机组的机械功率与电磁功率之差作为等式约束加入到算法中。
Making use of simplified asynchronous generator model, the paper introduced slips into variables, taken mechanical and electrical power unbalances as equation restrains to add in the algorithm.
最后，根据大型风电机组的机理模型、电网模型以及燃气轮机模型，建立了集成的风气互补发电系统的仿真模型并研究了其动态特性。
Finally, the simulation models and dynamic characteristics of wind-gas turbine hybrid power system are discussed based on the model of wind turbine unit, power grid and gas turbine power plants.
该模型基于定子磁场定向的矢量控制方法，采用双pwm变流器，对大型并网风电机组的最大风能跟踪、有功和无功功率的解耦控制进行了仿真。
In the MATLAB, using a structured design method, a dual PWM converter control system model were established on the basis of the stator flux field vector control technology.
该模型基于定子磁场定向的矢量控制方法，采用双pwm变流器，对大型并网风电机组的最大风能跟踪、有功和无功功率的解耦控制进行了仿真。
In the MATLAB, using a structured design method, a dual PWM converter control system model were established on the basis of the stator flux field vector control technology.
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