变频调速装置在某电厂高压电动机上的应用

Application of Variable Frequency Speed Regulating Device in High Voltage Motor of a Power Plant

通过对变频调速装置的结构与特性进行分析,针对某电厂的高压电动机配置与特殊结构,探究其在高压引风电动机上的功能发挥与应用情况,并进一步对其应用效果进行分析。分析结果表明:在发电量相同的条件下,引入变频调速装置后,引风机的用电量基本都在15 000 k W以下,而没有引进前耗电量多在25 000 k W左右,节能效果明显。其中,引风机在变频调速后,其运行能耗与工频运行能耗量相比,所占总耗量的比重下降至42.27%,其变频运行用电量是工频运行电量的56.34%。

Through the analysis of the structure and characteristics of variable frequency speed regulation device for high voltage motor, configuration and special structure of a power plant, and explore the high pressure fan on the motor function and application, and further its application effect was analyzed. The analysis results show that the amount of power under the same conditions, the introduction of variable frequency speed regulating device, a draught fan is basically below 15000 k W with power, and not before the introduction of power consumption of about 25000 k W in the energy saving effect is obvious. The fan in the VVVF, compared to its energy consumption and the power frequency operation energy consumption, the total consumption of the decline in the proportion of To 42.27%, the frequency conversion power consumption is 56.34%. of the power frequency operation power