抽水蓄能电机变频起动时阻尼暂态电流的计算

Calculation of Starting Currents and Losses for Damper Bars of Pumped Storage Machines by SFC

针对用静止变频器起动的抽水蓄能电机,建立了变频起动时的阻尼回路多回路数学模型,对其起动的自然换流过程进行了数字仿真,得到起动过程中各个阻尼条电流和损耗的分布,并以某电机为例做了实例计算.

For the pumped storage machines started by static frequency converter （SFC）, the mathematical model of multi - circuits is established. Then the mathematical simulation of static frequency converter starting is carried out by MATLAB, and the transient currents and losses of the damper bars are calculated. Finally, a sample machine is given as the example.