随着电力系统容量的不断增大和系统结构的日渐复杂，对电力系统自动控制技术的要求进一步提高。
With the growing of the power system, it is necessary to promote the technology of automatic control of power system.
由于采用双控制器的RAID系统的数据具有高可靠性，因此在电力系统自动控制等方面具有广阔的应用前景。
Due to the high reliability of the data in the RAID system with dual-controller, it has a bright prospect to be applied to the automatic control for power system.
电力系统一般都很复杂且变量又多，实现二阶负载—频率自动控制也相应变得很困难。
Because power systems are complex and multi-variable, it is very difficult to realize automatic secondary load-frequency control.
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