UC知道急求电机系毕业论文翻译
来源：百度知道 编辑：UC知道 时间：2024/06/08 02:22:13
Induction machine dynamic analysis
When a constant torque is applied to the rotor of an induction machine it will operate at a
fixed slip. If the applied torque is varying, then the speed of the rotor will vary as well. The
relationship can be described by:
H U
U
(5.4.28)
where J is the moment of inertia of the generator rotor, U is the angular speed of the
generator rotor (rad/s), H is the electrical torque and U is the torque applied to the
generator rotor.
When the applied torque varies slowly relative to the electrical grid frequency, a quasi
steady state approach may be taken for the analysis. That is, the electrical torque may be
assumed to be a function of slip as described in Equation 5.4.27 and preceding equations.
The quasi steady state approach may normally be used in assessing wind turbine dynamics.
This is because the frequency of fluctuations in the wind i
When a constant torque is applied to the rotor of an induction machine it will operate at a
fixed slip. If the applied torque is varying, then the speed of the rotor will vary as well. The
relationship can be described by:
H U
U
(5.4.28)
where J is the moment of inertia of the generator rotor, U is the angular speed of the
generator rotor (rad/s), H is the electrical torque and U is the torque applied to the
generator rotor.
When the applied torque varies slowly relative to the electrical grid frequency, a quasi
steady state approach may be taken for the analysis. That is, the electrical torque may be
assumed to be a function of slip as described in Equation 5.4.27 and preceding equations.
The quasi steady state approach may normally be used in assessing wind turbine dynamics.
This is because the frequency of fluctuations in the wind i
感应电机动态分析
当恒转矩应用于转子感应机，将运行在一个
固定滑。如果应用是不同的扭矩，然后的速度将有所不同转子以及。那个
的关系来描述：
（ 5.4.28 ）
其中J是转动惯量的发电机转子， U是角速度的
发电机转子（弧度/秒）的H ？是电磁转矩和U ？是扭矩适用于
发电机转子。
当适用于不同的扭矩相对缓慢的电网频率，准
稳态的办法可以采取的分析。也就是说，电动扭矩可
假定为一个函数的支路中所描述方程5.4.27和前面的方程。
准稳态方法通常被用来评估风力发电机组的动力。
这是因为频率波动的风致扭矩和
机械振荡通常远远低于电网频率。上岗
发电机方程这种方式使用应用，例如，在动态风力发电机
驱动列车模型， DrvTrnVB 。这是描述Manwell等。 （ 1996年） 。
值得指出的是，异步电机有些“软”的动态
针对不断变化的条件比同步电机。这是因为感应
机器进行一个小但重要的速度变化（滑）作为扭矩或缩小
变化。同步电机，如前所述，在不断的操作速度，同
唯一的功角变化的扭矩不同。同步电机从而有一个非常
'硬'响应波动条件。