Identification of Errors in Power Flow Controller Parameters

Transmission open access allows power transactions to take place between remote parts of an interconnected system. As a result, some parts of the transmission system may experience unusual power flows during certain power transactions. One way to circumvent possible congestion is to use power flow control devices. These devices which are also referred as flexible AC transmission system (FACTS) devices, allow rerouting of power flows in the system. The amount of power flowing through such a device can be controlled via device parameters. Hence, proper monitoring of these parameters is important for reliable operation and system security. In this paper, an identification method for detecting and identifying errors associated with power controller parameters will be presented. The method is based on the available measurements such as the power flows and injections which are used by the state estimators at the control center. Hence, the method can be implemented easily as part of the existing energy management functions