Voltage profile evaluation of power systems with coordinated SVC devices

Voltage security analysis is an important content in power systems operation and control. With the developments of flexible AC transmission system (FACTS) devices, power system performance can be improved. This paper presents an application of one of the FACTS devices - new static VAR compensator (SVC) in power systems, and analyzes its impact on system voltage profile. The new SVC model controls local, remote, internal and external devices simultaneously. It has two modes of operation: (1) Voltage control mode; and (2) Q control mode. This paper describes the functions of the new SVC, and implements them in the practical power systems. The impact of voltage profile with new SVC model is also discussed by comparing it with general SVC model as well as without SVC model.