阻抗功率法计算电动机起动时的电压暂降探讨

Discussion on Voltage Dip Calculation of Electric Motor Starting Using Impedance Power Method

各类常用设计手册中,电动机起动时电压暂降的计算方法并不统一,虽经改进,但是仍存在一定误区。详细分析了《工业与民用供配电设计手册》(第4版)和《钢铁企业电力设计手册》中电动机起动时电压暂降的计算方法,并对原方法不当之处作了改进。

In kinds of design manuals,the calculation methods of voltage dip during motor starting are not uniform.Though it has been improved,but there are still some misconceptions.The calculation methods of voltage dip during motor starting in《Industrial&civil power supply and distribution design manual》(4th edition)and《Electric power design manual of iron&steel enterprises》are analyzed in detail.The impropriety of the original calculation method is improved.