给定线路功率的控制潮流求解方法及应用

The solving method and application of control power flow of given line power

介绍一种新的控制潮流算法。该算法考虑了发电机有功—频率特性曲线和无功—电压特性曲线的调节特性,避免了常规潮流对PV、PQ及平衡点的假设,有效地解决了电力系统调度运行中通过调整发电机出力使某些重要线路的传输功率维持在给定值的问题。特别是系统受到负荷扰动时,该算法能快速确定各机组的出力。对试验系统的计算表明,该算法是正确有效的。

A new arithmetic of control power flow was introduced.It takes into account the fact that the output power of synchronous generator units is determined by the active power-frequency and reactive power-voltage steady-state characteristics, which avoids the assumption of PV bus, PQ bus and slack bus in the conventional load flow, and also efficiently solves the problem that maintaining the transmission power lines important of on the given value by regulating the output power of generators during the dispatching operation of power network. Especially, when the system is disturbed, this arithmetic can quickly determine the output power of generators.It has been tested by test system.