Advanced generation control with economic dispatch
Advanced generation control with economic dispatch
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DOI：
10.1109/cdc.1995.479119
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发表时间：
1995-12
期刊：
影响因子：
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通讯作者：
D.B. Eidson;M. Ilić
中科院分区：
文献类型：
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作者：
D.B. Eidson;M. Ilić
介绍了一种新的电网自动发电控制（AGC）方法。该方法还支持经济调度功能，该功能在较慢的时间尺度下运行，并与AGC频率稳定功能相互作用。AGC分为两个子任务：频率调节和联络线流量控制，并制定了一个层次的控制来实现这两个功能。频率调节水平，称为二次控制，是分散的，并在发电机调速器控制的频率偏移和变化方面进行优化。联络线流量控制级别，称为三级控制，是集中式的，并且工作在比二级控制慢的时间尺度上。三级控制通过瞬时偏移发电机频率来补偿区域之间的意外流动。这些频率偏移改变了在联络线终端处发现的相位角，并最终实现所需的线路流量。经济调度（艾德）的作用是重新安排整个系统，以最小化总发电成本。拟议中的艾德版本是集中式的，而且调用速度甚至比三级联络线监管还要慢。
A new approach for the automatic generation control (AGC) of electric power networks is introduced. This approach also supports an economic dispatch feature which operates at a slower time scale and interacts with the AGC frequency stabilization function. AGC is separated into two subtasks: frequency regulation and tie-line flow control, and a hierarchy of controls are formulated to realize these two functions. The frequency regulation level, called secondary control, is decentralized, and optimized with respect to both frequency offset and change in generator governor controls. The tie-line flow control level, called tertiary control, is centralized, and works on a slower time scale than secondary control. Tertiary control compensates for inadvertent flows between areas by momentarily offsetting generator frequencies. These frequency offsets shift the phase angles found at tie-line terminals, and eventually realize the desired line flows. The role of economic dispatch (ED) is to reschedule the entire system to minimize overall generation cost. The proposed version of ED is centralized, and invoked at an even slower rate than tertiary tie-line regulation.