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水轮发电机的并网一般采用准同步和自同步两种并网法。在符合并网条件下,采用准同步并网法并网时,水轮发电机组没有冲击电流,对电网系统也没有什么影响。所以当前国内大都采用准同步并网法。然而,有的电站采用上述两种并网法都不能将机组并入系统,我们在处理某电站机组并网过程中就曾遇到过这种情况,经采取特殊措施才得以解决。现将有关情况简述如下:
Turbine generators are generally used in the quasi-synchronous and self-synchronization of two grid-connected law. In line with the grid conditions, the use of quasi-synchronous grid connected with the grid, the hydro-generating units no impact on the power grid system has no effect. Therefore, most of the current domestic quasi-synchronous grid method. However, some power plants using the two grid-connected methods can not be integrated into the system unit, and we deal with a power plant unit during the grid had encountered this situation, to take special measures to be resolved. The relevant briefing is as follows: