Assessment of Optimal Location of Unified Power Flow Controller Considering Steady-State Voltage Stability
In this paper, UPFC is modeled as two reactive power injections and a bypass circuit of active power in parallel with connecting series transformer of the UPFC. UPFC has three parameters, which can be controlled within the range of inverter limited capacity. Therefore, UPFC can be assumed to be the constant power load in the power flow calculation. Steady-state voltage stability can be evaluated using maximum loading of P-V curves, but also by the total reactive power loss of the power system. In this paper, a new methods are proposed, which can estimate how much UPFC at a given location improves the voltage stability, based on the information on line power flow and bus voltage in the network without installing the UPFC at the location. The proposed method can determine the optimal location of UPFC efficiently from the computational viewpoint. Optimal location of UPFC may be affected by power system configurations and load conditions. In this paper, many types of power system configurations and load conditions are considered when UPFC location is given. UPFC can not only improve the voltage stability but also control active power flow resulting in active power loss reduction and overload alleviation. The optimal location of UPFC depends on the selected objective function.
flexible AC transmission systems (FACTS) optimal location optimal power flow controller (OPF) steadystate
Yuta Wakabayashi Akihiko Yokoyama
Department of Electrical Engineering and Information Systems, the University of Tokyo, Tokyo, 113-86 Department of Advanced Energy, the University of Tokyo, Chiba, 277-8568 Japan
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-6
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）