在原动机仿真系统中，关于其速度电流综合调节器(实质为PI调节器)的参数一直以来都是依靠传统方法来确定的，这种方法不但耗费较多的时间，而且很难寻求到一组理想的参数。
In the prime mover simulation system, the parameters of the PI regulator are always confirmed in traditional method, but this method consume much time and is hard to get ideal parameters.
而被称为“同步向量”的设备能以一秒30次或更快的速度采样电压和电流——向电力公司和系统操作员提供有关电网健康状况的信息更为精确。
Devices called synchrophasors can sample voltage and current 30 times a second or faster-giving utilities and system operators a far more accurate view of the health of the grid.
当然，使用这么高的速度给电池充电，我们最终不可避免将面临提供大电流的问题。
Of course, that ultimately pushes us up against the issue of supplying sufficient current in the short time frames needed to charge the battery this fast.
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