利用功率注入法，建立广义统一潮流控制器(generalized unified power flow controller，GUPFC)和线间潮流控制器(interline power flow controller，IPFC)的数学模型。将GUPFC和IPFC的目标控制约束及运行约束即内部功率平衡约束和考虑等效功率注入模型的潮流约束嵌入到最优潮流计算模型中，得到计及GUPFC和IPFC的可用输电能力(available transfer capability，ATC)计算模型，并利用跟踪中心轨迹内点法对模型进行求解。IEEE-30节点系统的仿真计算显示GUPFC对节点电压和多条线路甚至某一子网络潮流的灵活控制能力及IPFC对线间潮流的合理分配能力；同时验证模型和算法的有效性和可行性。

The mathematical model of the generalized unified power flow controller (GUPFC) and the interline power flow controller (IPFC) were established based on power injection method. The available transfer capability (ATC) calculation model taking GUPFC and IPFC into account was built according to add the controlling constraints, operating constraints and power injection model of GUPFC and IPFC into the optimal power flow analysis model. The central path-following interior point algorithm was applied to calculate the ATC. Numerical results with various flexible AC transmission system (FACTS) devices based on IEEE-30 bus system not only demonstrate the capability of controlling bus voltage and power flows of more than one line or even a sub-network of GUPFC and the capability of reasonable distributing power flows among two lines, but also demonstrates the feasibility as well as the effectiveness of the model established and the algorithm proposed.