【摘要】 针对目前统一潮流控制器（ＵＰＦＣ）元件的潮流计算的不足之处，提出一种计算ＵＰＦＣ在给定线路的有功、无功功率潮流作为其控制目标情况下的潮流方法。该方法在进行含ＵＰＦＣ元件的潮流计算时，程序处理简单，计算时间与无ＵＰＦＣ元件时相比增加较少，且无需考虑ＵＰＦＣ元件控制变量的初值选取问题。对ＵＰＦＣ元件的控制线路潮流的能力进行静态分析，并讨论当系统中存在多个ＵＰＦＣ元件时，各元件对线路潮流调节范围的相互影响。通过仿真计算，发现ＵＰＦＣ元件的串联部分在控制本线路或其它线路的潮流时，在不同的潮流变化方向上其调节幅度不相同，进行远方控制时表现的更为明显。另外，多个元件对同一线路潮流进行调节时，其总的调节幅度是各个元件单独作用时调节幅度的叠加。更多还原

【Abstract】 Aiming at the shortage of load flow calculating method for power systems containing the unified power flow controller (UPFC), a new method is developed when UPFC is used to make active and reactive power flow of the line. The facilities provided by this method are easy programming, little increment of calculation time compared with the condition without the UPFC. Moreover, it is not necessary to care about the selection of the initial value of UPFC’s control variables. The power flow control capability of UPFC is analyzed and the interactions of each UPFC’s regulating boundary are discussed when there are more than one UPFC devices installed in the system. The simulation results show that, when the series part of UPFC controls the power flow on local line or other lines, the regulating range is different when the power flow change in different ways, especially to the remote line’s. Furthermore, when more than one UPFC device are used to control the same line’s power flow, the total regulating range is the addition of each regulating range which they control alone.更多还原